Physics Questions and Answers December 02, 2022

A MOSFET has a VT of 0.85 and the subthreshold swing is 90mV/dec. Assume the transistor is to operate at a VDD=3V. Now, an engineer wants to increase the drain saturation current by reducing the threshold voltage to 0.4V while keeping all other parameters unchanged. If the original leakage current at VG=0V is 0.15pA (assume has not reached the

The ID-VDS characteristics of an NMOSFET with L=0.5um and VT=0.5V, Vdsat=2.5V. Assume vsat=107cm/s and VG=6.5V, calculate the following (up to 3 significant digits) at the drain voltage is just enough to reach the saturation point: What is the velocity of the carrier near the source in cm/s? What is the lateral E-field near the drain in V/cm? What

A lantern of mass mis suspended by a string that is tied to two other strings, as shown in the figure below. The freebody diagram shows the forces exerted by the three strings on the knot. F F 0 X Assume that 30 and 60 and the mass of the lantern is 2.1 Kg. Find F1, F2 and F3.

A 2000 kg airplane takes 10 minutes to reach a speed of 350 ms and an altitude of 8 km starting from rest and from the ground. Assuming the air resistance is negligible. Calculate the power of the engines of the airplane. wob stiw mersib s web obstinat

zhodcups A 1000 kg train and a 75 kg Superman travels in the opposite directions. Before the collision, the train travels at a speed of 80 ms, and the Superman flies at a speed of 500 ms. After the collision, the train and Superman move together. Find the speed at which the Superman and train move together after the collision.

gsm sril brit Jainosnori srii svods 2991gsb 0.85 signs na te Vi 0.1S 90101 8 2715X9 A person exerts a force of 130 N at an angle of 36 degrees to the face of the door. The door has a width of 82 cm. Find the magnitude of the torque acting on the door.

Which physical assessment strategy is correct for measuring jugular venous pulsations (JVP)? a. Have the head-of-bed at 45 degrees. b. Place the ruler parallel to the floor c. Measure JVP before taking the BP d. Compare left to right sides

Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 10 N at a distance of 0.5 m from the hinges, and the second child pushes at a distance of 0.2 m. What force must the second child exert to keep the door from moving Assume friction is negligible.

A block of height 0.240 m floats in seawater of density 1025 kgm. The top of the block is 0.056 m above the surface of the seawater. Find the blocks density.

Engineers approximate the elliptical orbit of Earth and Mars with a circular orbit. This is not a bad approximation because the eccentricity of both orbits is very low making them very close to being circular. Any object orbiting in a circular path will have an average orbital speed equal to the distance traveled divided by the time it took to

Mars is 230 million km from the sun. It completes one orbit in a period of approximately 687 days. Calculate the orbital speed of Mars in km/hour. (Note: a Mars day is 24.6597 hours) Use the equations that appear below to answer the question. To solve questions of this nature, engineers approximate the elliptical orbit of Earth and Mars with a

What constant torque is required to bring a disk from rest up to a speed of 36.0 rads in 3.50 s The moment of inertia of the disk is 0.080 kg.m.

An object is suspended by two cables attached at a single point. The force applied on one cable has a magnitude of 125 pounds and acts at an angle of 37. The force on the other cable is 75 pounds at an angle of 150. Part A Write each vector in component form. Show all necessary work. Part B Find the dot product of the vectors. Show all necessary

A car tire with a diameter of 60cm rotates 3 times every 3s. The tire picks up a nail at the bottom of its rotation at time t=0. a) Determine a cosine function to describe the nails height above the ground with respect to time. You may sketch the scenario on the graph provided to help you. b) Determine the nails height above the ground at t = 14s.

Joe is paddling a canoe in the same direction as the current of a river. The velocity of he river current is 1 ms. joe paddles 2 ms relative to the current. How much time will it take Kole to travel 30 meters

A massive star (uniform solid sphere) collapses so that its radius decreases to of its original radius. If the star was rotating with an angular speed of wi, by what factor will its angular speed change Justify your answer with a calculation or explanation.

What is the ratio of B and P atoms implanted into Si with the same 200 keV energy at 0.4 m depth? Use Fig. below and your calculations of the implantation profiles.

range (um) 0.1 0.01 10 boron phosphorus antimony arsenic 100 implant energy (keV) (a) B Sb 1000 straggle (um) 0.1 0.01 0.001 10 B 18 Sb boron phosphorus antimony ..arsenic 100 implant energy (keV) (b) 1000,range (um) 0.1 0.01 10 boron phosphorus antimony arsenic 100 implant energy (keV) (a) B Sb 1000 straggle (um) 0.1 0.01 0.001 10 B 18 Sb boron

Having landed on a newly discovered planet, an astronaut sets up a simple pendulum of length 1.56 m and finds that it makes 457 complete oscillations in 1230 s. The ampli tude of the oscillations is very small compared to the pendulums length. What is the gravitational acceleration on the surface of this planet Answer in units of ms.

You need to know the height of a tower, but darkness obscures the ceiling. You note that a pendulum extending from the ceiling almost touches the floor and that its period is 12 s. The acceleration of gravity is 9.81 ms2. How tall is the tower Answer in units of m.

Consider small amplitude waves on a string of length 1 (in dimless units) lying on 0 x 1, pinned at both ends such that the waves travel at a speed of 2 (in dimless units). At t0, the shape of the string is given by the profile H(x) A x(x 1), with A 1 (i.e. small amplitude), and string is momentarily at rest. Determine the complete

1. Determine the net force and acceleration for each object Assume that the mass of each object is 5.0 kilograms. a. b. F 20 N F 3 N F 50 N

A horse pulls a 300 kilogram carriage with a force F of 4000 newtons at an angle of 15 above horizontal. A friction force of 2500 newtons acts on the carriage as the horse pulls it. a. Sketch and label the FOUR forces (Fg, FN, Frand F) acting on the carriage. bo b. Calculate the net force acting on the carriage and its resulting acceleration.

See the figure below. A uniform electric field exists in the region between two oppositely charged parallel plates. A particle with charge 7.40nC is placed in the electric field. Which of the following is true O A. The field goes to the left, the force on the particle goes to the left. OB. The field goes to the right, the force on the particle

A uniform electric field exists in the region between two oppositely charged parallel plates. The electric field has a magnitude of 5.11 x 103 NC. The plates are separated by 0.500 cm. The potential difference between the two plates is V. Express your answer in normal format and 3 SF.

TPC 25, a 120 m long vessel with an MCT of 1 cm and 100-ton-meters, is drawing 6.00m F and 6.60m A. Twelve meters ahead of the center of flotation, which is two meters behind amidships, is a load weighing 250 tons. Determine the forward and aft new end drafts.

Find the orbital velocity of a LEO satellite, weighing 450 kg, with height 676 Km from the Earths surface. Given that Universal Gravitation Constant is 6.67 10NmKg and Earths radius is 6400 Km and mass of the Earth is 6 10 Kg.

(i) Suppose, a particle (Volume V) with susceptibility X is placed at the center of a solenoid coil (radius R, length L, N turns). Radius of the particle is much smaller than the radius of the coil. Analytically derive the change in voltage developed across the solenoid due to the presence of this particle when an ac current I (peak) flows through

Initially, inside a rigid cylinder, there is a certain amount of mass M of superheated water vapor at T1=250deg C and p1=1MPa with its initial specific internal energy u1.The circular lids of the cylinder are adiabatic, while the side wall is not. A metal coil is placed that absorbs the heat from the cylinder until the substance inside it reaches

A 0.2 g particle carrying a charge of 3 C is placed in a vertically upwards uniform electric field. (i) Sketch the forces acting on the particle. (ii) If it accelerates at 20 m s2 , calculate the magnitude of electric field.

A rectangular conductive loop is placed near a long, straight wire at a distance a carrying an alternating current of I(t) = Io sin(ot). Here, o =2/T, T = 0.02 s is the period of the alternating current. Both the wire and the loop are in the same plane. The side lengths of the loop are L1 = a and L2 = 2a, and the resistance R = 20 is connected

1(t) a L L www R

A car starts from rest at a checkpoint A and comes to rest at the next checkpoint B 6km away in 3minutes. It has first a uniform acceleration of 40seconds then a constant speed and is brought to rest with a uniform retardation after 20seconds. Find the maximum speed?

A furnace wall is made of composite wall of total thickness 550 mm. Th einside layer is made of refractory material (k 2.3 WmK) and outer layer is made of an insulating material (k 0.2 WmK). The mean temperature of the glass inside the furnace is 900C and interface temperature is 520C. The heat transfer coefficient between the gases and inner

A pump pumps water between two large open tanks through 30 m of 20 cm diameter pipe. The pipe contains four regular flanged 90 elbows, a forward flow check valve, and a fully open globe valve. Other minor losses are negligible. Assume the friction factor f0.02 for the 30 m section of pipe. If the static head (difference in height of fluid surfaces

Youngs double slit experiment was used to prove that light (electromagnetic radiation) travelled as a wave. Explain briefly how an important property of waves formed the basis of this experiment.

In 3D coordinates, can you help me to find the following rotations for the two figures: 1) pi/2 about x-axis 2) pi/2 about y-axis 3) pi/2 about z-axis

X A

What is the age of a fossil that contains 6g of carbon (14)C and has a decay rate of 27 decays per minute Given Ratio ( (14)C)( (12)C) 13xx10(13), Half life (T(12)) of (14)C 5730 yrs.

a) What is magnetisation? b) What is the meaning of B, H mad M in magnetism? c) Calculate B, H and M in a system like an electromagnet with air gap. Consider a number of turns, some steady current I circulating and magnetic linear material with relative permiability

The microwave power density emitting from the Earth's surface at 300 K in the range of frequency from 3 to 300 GHz. Find the power density over that frequency range ?

There is given an ideal capacitor. The capacitor consists of two plates at a distance of 1mm, in a Cartesian coordinate system the plates are parallel to the (x,y) plane. The capacitor will be charged such that an electrical energy of 10~ J will be stored in the capacitor and then it will be disconnected from the voltage source. You know that the

1. VD 245 mms 2. VD 46,4 mms 3. VD 3650 ms 4. VD 355 ms 5. VD 7,81 . 103 ms 6. VD 4,52 mms 7. VD 7,96 103 ms 8. VD2,31. 103 ms 9. VD 88,2. 103 ms 10. VD 26,3 . 103 ms

A woman on a bicycle traveling at 10 m/s on a horizontal road stops pedalling as she starts up a hill inclined at 3 to the horizontal. Ignoring friction forces, how far up the hill will she travel before stopping? 97.4 m 10.2 m 5.1 m 30 m The answer depends on the mass

Given is a constant voltage source with U=10V to which you connect an electrical machine. Supposed you can manage that only a charge equivalent to 10 electrons is transferred from the negative electrode to the positive electrode of the voltage source and supposed there are no ohmic losses, calculate the following problem. The electrical machine

2. 1011 m 5. 1010 m 4.1013 m 8. 1016 m 9. 1014 m 5.1012 m 7.1017 m 3.1016 m 2.108m 2. 1015 m

Given that value t(0-28m/s)(s) =2.5 And that t(400m)(s) = 9.75 With tmax (s) = 8.0 P.s, if you have to create a table, please use excel or any other digital data app/site. Use thinking methods to analyse the given engineering problem, e.g. break the problem down into a series of manageable elements, and produce a specification Prepare a valid

In a square room with area of 25 m2 , a bulb of light at distance of 2 m from the wall yields a power density of 200 Wm-2 at point A as illustrated in figure below. If the bulb is an isotropic radiator, compute the power generated by the bulb?

An object, M 2 kg on a frictionless horizontal surface was displaced along xaxis by d (41) m while a force F (8i 6k) N was acting on the object. Here, i and k are the unit vectors along the x and z axis, respectively. (a) Find the work done by F on the object during the displacement. What is the scalar product, F. d (b) If the object start

If you suck some cranberry juice in a glass using a straw, the juice would always rise inside the straw. What established principle do you think would get violated if it doesn't? What is the principle?

You are working as a Junior Engineer for a small motor racing team. You have been given a proposed mathematical model to calculate the velocity of a car accelerating from rest in a straight line. The equation is: v(t)=A(1-e^t/t_maxspeed ) v(t) is the instantaneous velocity of the car(m / s) t is the time in seconds t_maxspeed is the time to reach

The equation of dicp lament, velocity and acceleration for Simple harmonic motion . Can you simplify these equation step by step by using the famous symbols such as dx/dt rather than x^. Displacement in Simple Harmonic Motion

The behaviour of a simple harmonic oscillator is expressed in terms of its displacement x from equilibrium, its velocity x, and its acceleration x at any given time. If we try the solution xAcosit where A is a constant with the same dimensions as x, we shall find that it satisfies the equation of motion x wx 0 for Awsinwt and Aw Displacement in

How electric field lines work and what they indicate How electric fields between plates are different from fields around point charges Equivalent units How to calculate charge What the strength of electric fields depend on What the size of electric forces depends on How the CRT works and what (and how) factors influence deflection What electric

Draw the electric field lines as they apply to: Isolated charges Electrostatic plates groups of charges How to indicate relative field strength and direction in diagrams.

(x Ax BU ly Cx 8. Define system , (X A2X2 BU2 . , are duality (y C2x2 systems (1) Depict the relationships between, B, C and A2, B2, C2 (2) Prove that the transfer function matrices of and are mutually inverted.

Show that the energy needed to remove two neutrons from an oddmass nucleus is approximately S2n (A, Z) 2 a, 2aa, A 1a, 2 A3 da as A13 3 3 aa a. (11) in the limit A 2 so that A in M(A, Z) can be treated as a continuous variable.

An airplane is traveling at 119 ms when it accelerates at 25.6 ms to reach 233 ms. How far does the plane travel in that time

A spacecraft starts from rest, and makes a journey to a destination 381000 km from its starting point. It does so by accelerating at a constant rate of 19.72 ms2 up to the midpoint of the journey, and then decelerates at the same constant rate of 19.72 ms2 for the second half of the journey, ending at rest. How long did the entire journey take 1

In a semiconductor consider the energy level lying 0.11 eV below Fermi level. Find (a) The probability of this level being occupied by the electron at room temperature. (b) The probability of this level not being occupied by the electron at room temperature. (c) The probability of this level not being occupied by the electron at 500 K. (d) Discuss

3) A vertical hoop of radius (R)1m is fixed to the ground. A small block of mass m 1 kg is sliding along the inside surface of the hoop without friction, as shown. At the lowest point (point A), the block has a speed Va 10 ms. Find the normal force on the block at the maximum point. A) 70N B) 50N C) 10N D) 20N A

When an object with a mass of 5 kg is connected to the end of a spring, the spring extends 10 meters and reaches equilibrium. This spring mass system is placed in an environment with a damping constant of 5 kilogramssecond and the mass is released with no initial velocity by pulling it down 3 meters from its equilibrium position. Find the function

A spacecraft starts from rest, and makes a journey to a destination 182000 km from its starting point. It does so by accelerating at a constant rate of 18.69 ms2 up to the midpoint of the journey, and then decelerates at the same constant rate of 18.69 ms2 for the second half of the journey, ending at rest. How long did the entire journey take

The magnet s mass is 6.82 kg and the magnetic force pulling it to the right is 67.0 N. The length of the cord is 1.04 m, and the ceiling is 3.30 m above the floor. Suppose that you cut the cord and the magnet falls to the floor while still being pulled to the right by the force of 67.0 N. How long will it take the magnet to hit the floor?

A150m long,18m wide,150tonnes-meter, MCT1cm,TPC25vessel is drawing6.35m F and6.65m A and loaded with the following: In No.1hold,230tonnes are held50meters ahead of the center of flotation. No.3's800tonnes are held20meters ahead of the center of flotation. No.4's500tonnes are held21meters behind the center of flotation. 200tonnes are released from

A boat A is travelling with speed 63 m/s in a direction 60 east of north and another boat B is travelling in a direction 60 north east with speed 4 m/s. Initially B is 52 m due east of A. find i) velocity of a relative to b in terms of i and j (ii) the shortest distance between A and B in the subsequent motion.

Calculate the circumference of a cable, which has a resistance R equals 107 time its resistivity and length L 40m.

Now use Coulombs Law to calculate the force between q1 and q2. F F k 191921 ke r ke 8.99 x 109 NmC, r 0.25 m F N 13.0 x 10 C 91 0.25 m 7.70 x 106 C 92 0.30 m 5.90 x 106 C 93 Enter

An inertial observer sees two isolated particles, of masses M1 2 kg y M2 4 kg, with V speeds 1 3j ms y V2 31 ms respectively. The particles collide and remain united, with V being the speed of the whole. the value of V in ms is

A point mass moves according to the trajectory described in the polar coordinate system bytheequationr=kwithk=1.6m/rad. Attimet=0,thepointmassisinthe origin of the reference system and its velocity is v0 = 0.8 m/s. The radial (or normal) component of the velocity during the motion is constant. Determine: (a) the equation of motion for r(t) and (t)

Two aircrafts travel on the same plane with velocity v1 = 500 km/h and v2 = 800 km/h respectively. The directions of motion generate an angle = 30 as the two aircrafts move away from each other. Evaluate: (a) The magnitude of the relative velocity of the second aircraft with respect to the first one (b) The direction of the relative velocity of

Consider a circular platform of radius R = 2 m. At the time instant t = 0 it is at rest. When it starts moving, it has a constant angular acceleration d/dt = = 0.2 rad/s2. Evaluate: (a) The angular velocity after 2 s (b) The magnitude of the acceleration experienced by a particle placed at the edge of the platform (at a distance corresponding to

a) Draw schematically the hyperfine structure splitting of the states 15 and 2P 3 of hydrogen (1 2 12) b) By what value are the hype fine structure levels from a) lowered or raised energetically 1420 MHz, A 12 MHz) IN NI W 2 IN

1. In an experiment replicating Millikans oil drop experiment, a pair of parallel plates are placed 0.0200 m apart and the top plate is positive. When the potential difference across the plates is 240.0 V, an oil drop of mass 2.0 x 1011 kg gets suspended between the plates. (e 1.6 x 1019 C) (a) Draw a freebody diagram for the charge. (b) What is

Evaluate: x = 2t^2 y = 2t + 1 z = 4 (a) The average velocity within the time interval t1=0 s and t2 = 5 s specifying the components and the magnitude of the vector (b) The momentary velocity specifying the components and the magnitude of the vector (c) The momentary acceleration specifying the components and the magnitude of the vector

The so-called K doublet of characteristic X-ray radiation is often used for the precise measurements of a lattice parameter. The effect of this ( mathrm K doublet on the diffraction angle becomes more prominent in a peak detected in the high angle region. Explain the reason and its separation {K 1 and K 2 ).

How much force must truck apply to move weight? A.100Lbs B. 150 lbs C.200Lbs D.300Lbs To move the weight 10 feet, truck must travel distance of feet. A.20 B.30 C.40 D.60

What is the Qvalue for the reaction where the products are 0.005 u less than the reactants (1 u 931.5 MeVc 2) O 4.7 MeV O 8.5 MeV 5.2 MeV O 7.6 MeV

The amount of work a 118 W electric mixer can do in 3.0 min is options: a) 1.5 x 10 0 J b) 3.9 x 10 1 J c) 2.1 x 10 4 J d) 3.5 x 10 2 J e) 2.5 x 10 -2 J

A high diver dives off a platform that is31m high into a pool that is4.0m in diameter. The edge of the platform is directly above the center of the pool. Assume that the diver initially jumps up at an angle of80degrees relative to the horizontal(almost,but not quite, straight up)with a total initial velocity of1m/s. What is the horizontal

Calculate the resultant of the two forces shown using the following given values. A 2.9kN and 8 62 B 6.8kN and 8 44 Give your answers with 2 decimal place accuracy for the magnitude and 1 decimal place accuracy for the angle. Resultant kN at degrees from the positive x axis.

A 3.7kg bird traveling 7.99m//s50.3m off the ground swoops down to 8.13m off the ground. At this point it is traveling 23.2m//s. What amount of energy is lost to air resistance?

Consider an orbital angular momentum I (I is an integer and positive or zero) and a spin s with s 12. The tensor product II, ml s. ms l, ml s, ms is then a basis of the state space, which is formed from common eigenstates of 12, 1, s and s. We now define a total angular momentum j 1 s and construct a new basis of the state space, which this

What is an angle of incidence in solar radiation in simple words, and does the surface need to be tilted? What does it mean that the angle of incidence in solar radiation is low?

Paper thickness varies. Typically, 100 sheets are about a cm thick. Atoms typically vary from 1 to 3 10 angstroms in radius. (An angstrom is 10 m.) Suppose a piece of paper is 0.0084cm thick. How many atoms span the thickness if the radius of the atom is 3.08 angstroms In a problem like this a lot of irrelevant (to problem solving) information is

A string along the x axis is stretched by a force F tangential to the string. It has mass M per unit length and moves in the transverse direction with displacement y(x,t). (a) Consider a small string element of length Ax with kinetic energy AT 2 M2Ax and potential energy AU 12 Fy2Ax. Write down the Lagrangian function for the whole string, and

A 10 kg block rests on a 30 inclined plane. The block is attached to a bucket by an ideal pulley system depicted below. The mass in the bucket is gradually increased by the addition of sand. At some point, the bucket will accumulate enough sand to set the block in motion. The coefficients of static and kinetic friction are 0.60 and 0.50

Under the assumption of the air resistance being proportional to the square of velocity, find the loss in kinetic energy when the body has been projected upward with velocity u and returns to the point of projection.

Slick Willy is in traffic court(again)contesting a $50.00ticket for running a red light.You see, your Honor, as I was approaching the light, it appeared yellow to me because of the Doppler effect. The red light from the traffic signal was shifted up in frequency because I was traveling towards it,just like the pitch of an approaching car rises as

An electric field strength created by charge Q is measured to be 70 N/C at a distance of 0.4 m from the center of the charge. What is the new field strength when the distance from the center of Q is changed to 0.6 m away with twice the charge of Q?

If this vehicle is cruising at a speed of 20 kmh speed on a level road with harmonic profile, calculate the displacement response amplitudes that will be observed at CoG. Assume that the road profile has a 0.01 m amplitude and 10 m wavelength. Repeat the same analysis for the vehicle speed of 40 kmh. kst my Est Yje You 8 ker My Vehicle Data Sprung

In a particular crash test, a car of mass 1500 kg collides with a wall, as shown in the Figure. The initial and final velocities of the car are v, 15.0 ms x and v, 2.6 ms x, respectively. If the collision lasts for 0.2 s, the average is force exerted on the car D a) 2.35 x 105 Nx b) 1.76 x 105 Nx c) 1.32 x 105 Nx d) 1.98 x 10 Nx. 15.0ms 260 ms

d) The circuit below is a switchselectable voltage divider network. Determine R, R2, R3 and R4 value so that the tap points (A, B and C) provide input voltage (Vin) attenuations of x10, x100 and x1000, with the total resistance of the circuit of 10 k. R in R www. x 10 x 100 B x 1000 C V out

Given reaction components of Cx and Cy at C and that the pin at C has crosssectional area What in the aumma chesr etrece in the nin C (TC) avg II (T) avg (c) avg (T) avg (e) x V 4A 3 C C C A 2 c x 3A C C x A 2A C C x y 3 12 V 3 P C 2 12

A diatomic ideal gas is enclosed in a cylinder bya frictionless piston as shown in the figure. Dueto a load of massm, the initial equilibrium state of the gas ispi 7.0 times 105Pa, Vi 2.0 dm3, andTi 27 C. The gas is expanded quasistatically tothe final volumeVf 2Viin two different waysa) By a slow supply of heatQ, while the load is unaltered,

A 8 kg ball was thrown to the wall with a force of 300 N. It reaches the wall at 7 seconds seconds. What is the impulse applied by the wall to return the boll back?

A rod of length 1.2 m and mass 6.0 kg is identified as a pendulum vertically at one of its ends. A handgun of mass 0.950 kg is attached to the other end, with the loop oriented horizontally. The weapon has a Bluetooth control so that a bullet can be fired remotely with a smartphone. In a video made with a highspeed camera, after firing a 9.0 g

A 50kg student gets on an elevator that is at rest. As the elevator begins to move, she has an apparent weight of 580 N for the first 3 seconds. a) What is the direction of motion of the elevator b) What is the acceleration of the elevator c) If the elevator is accelerating downwards with acceleration of 2 ms2, find the apparent weight of the

If a photodetector intercepts and reflects optical power of 20 W, determine the effective area of the photodetector? Find the power spectral density of the sun at the optimum sensing wavelength in the ideal earth temperature?

A solid conducting metal sphere of radius b and total charge Q has an empty spherical cavity of radius a. An unknown point charge q is placed at the center of the spherical cavity. The electric field at x d is given by (x d) . 2od2 What is the electric field inside the cavity (r

A student throws a water balloon at an initial angle = 28 above the horizontal with initial speed v 0 from a height h = 1.74 m. The target is located on the ground a horizontal distance d = 6.5 m from the students feet. Assume that the balloon moves without air resistance. Use a Cartesian coordinate system with the origin at the balloon's initial

In accounting, what term is used to describe entities in which an investor has a controlling financial interest but may not have a majority of voting rights? (a) Controlling Interest Entity (CIE) (b) Variable Interest Entity (VIE) (c) Special Purpose Entity (SPE) (d) Limited Liability Company (LLC)

A RO membrane plant needs to provide 3600 mday. The feedwater has conductivity of 2500 Scm. The osmotic pressure of the feedwater is approximately 150 kPa in the absence of concentration polarization. Design the RO plant with the membrane shown in the following table. Properties (per membrane element) Membrane material Area Permeate flow Thin film

Determine the angle of twist per unit length and the maximum shear stress in the aluminum channel section shown in Figure. when subjected to a pure torque of 20 Nm. G 27 GNm2.,150 mm 3 mm 75 mm 2 mm 2 mm

A tapered rod is modelled as two uniform sections, where EA 2EA and m2m2. Determine the two natural frequencies in longitudinal direction. EA m (1) L 2 EA m (2) L 13

A truss structure consists of two members of common material and crosssectional area such that EA EA2EA. The two members differ in length and mas. Determine the two natural frequencies for 2dimensional vibration. LV3, mv3 L 3 1 EA 2L, 2m 2