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Physics Questions and Answers December 02, 2019

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The light post is at 200 m and the tree at 1200m Review Part A Larry leaves home at 9:06 and runs at constant speed to the lamppost seen in (Figure 1). He reaches the lamppost at 9:09, immediately turns, and runs to the tree. Larry arrives at the tree at 9:13. What is Larry's average velocity, in m/ min, during each of these two intervals. Express

(a) Draw a diagram of the interaction that occurs in Compton scattering. Use standard symbols to denote "before" and "after" the interaction, showing the incoming or outgoing photons (mm) and/or electrons (On). Be sure to label the diagram to sufficiently illustrate the physics of the interactions. Before After ,p ,p a mec? E, P (b) Write the

The figure(Figure 1) shows the thermal energy of 0.16 mol of gas as a function of temperature. Figure 1 of 1 Thermal energy is shown as a function of temperature. Temperature T is measured from 0 to 200 degrees Celsius on the horizontal axis. Thermal energy E subscript th is measured from 0 to 1892 joules on the vertical axis. Thermal energy

A bullet is fired straight up. Neglecting air resistance, the speed of the bullet when it falls back down is Blank______. Multiple choice question. slower than when it came out of the gun the same as when it came out of the gun faster than when it came out of the gun

5.46 - Enhanced - with Feedback Part B The figure shows two 1.00 kg blocks connected by a rope. A second rope hangs beneath the lower block. Both ropes have a mass of 250 g. The entire assembly is accelerated upwards at 3.00 m/s by force F. (Figure 1) What is the tension at the top end of rope 1? Express your answer in newtons. Figure esc tab caps

Choose the forms of energy that contribute to the internal energy of a system. (Check all that apply.) Check All That Apply Sensible energySensible energy Latent energyLatent energy Electrical energyElectrical energy Chemical energyChemical energy Magnetic energyMagnetic energy Nuclear energy

Draw vectors to show the B field of each wire and the net B field at point P. Draw the force vectors with their tails at the point P. The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded

1b. (5 pts) Derive an expression for effective density of states in terms of the electron effective mass and other fundamental constants

A car travelling at a speed of 30 m/s slows to 10 m/s in 5 seconds. The acceleration of the car is Group of answer choices 10 m/s2 100 m/s2 - 30 m/s2 - 4 m/s2

What is the value of this type of wire? Select the words from the drop-down menus to correctly complete the explanation. Copper is an excellent resistor of electricity. Plastic is useful as a(n) appliance . A plastic coating acts to keep the electric current inside the wire and prevent its loss to the environment

By flying in a zero sideslip attitude, you can regain the controllability and performance lost when the airplane was slipping. For most light twin-engined aircraft, Question Blank 1 of 1 type your answer... degrees of bank is the most effective angle to zero the sideslip and achieve best engine-out performance. USE Jeppesen Guided Flight Discovery

What trick did the Motown engineers use when mastering to retain the fat bass sound on vinyl

Can a small force ever exert a greater torque than a larger force? Explain If the net force on a system is zero, is the net torque also zero? If the net torque on a system is zero, is the net force zero? Explain and give examples. A book has three symmetry axes through its center, all mutually perpendicular. The book's moment of inertia would be

What did Johann Jakob Balmer discover about the spectrum of hydrogen? He discovered a mathematical formula that described the frequencies of lines in the spectra of elements other than hydrogen. He discovered a mathematical formula that described the pattern of wavelengths in the line spectra of hydrogen. He discovered the equation for the peak

You will change the motion of an object if you change its

What stops the gravitational collapse of the core of a medium mass star? Group of answer choices Radiation pressure. Electron degeneracy pressure. Neutron degeneracy pressure

The electric potential should scale with the inverse of the distance for a point charge. Use the tape measure tool to measure the distance from the charge to each of the equipotentials. We can manipulate the equation ???? = ???????? ???? and take the natural log of both sides of the equation. (*See comment below about units.) ln ???? = ln ????????

An aircraft achieves a second segment climb gradient of 5.8% at 116 KTAS. What is the rate of climb? Group of answer choices 637 fpm 536 fpm 682 fpm 579 fpm

The momentum of an object never changes. Group of answer choices False True

Now move the pencil to about the 100 cm end of the paper meter stick or as far as it can get from your eyes. Again, quantify the motion compared to when the pencil was at the 50 cm position.

Leonard Nimoy stands at the edge of a cliff at a given elevation h above the still waters of Lake Erie as shown in the figure. He throws a tennis ball at a given speed v0 at a given angle of above the horizontal direction towards the Lake. Then he throws a second tennis ball at the same speed v0 but downwards at an given angle below the

Physics 1101 Prelab Physics 1101 Experiment 3 Pre-Laboratory Assignment Name and PSID TA You must show and explain all work neatly to receive credit. Please show each step for calculations, YOU MUST TURN IN THIS SHEET to have your assignment graded. 1. Assume the radii used for the experiment are 13.00 cm and 21.00 cm. Calculate the value of Ax

In the context of spiral galaxies, Kepler's laws could be used to estimate Group of answer choices: A, the radius of the galaxy. P, the period of galactic rotation. v, the rotation speed of the galaxy. M, the mass of the galaxy

An athlete is training on a 100 m long linear track. His motion is described by the graph of his position vs. time, below. On a coordinate plane the horizontal axis is labeled t (s) and the vertical axis is labeled x (m). There are four connected line segments labeled A, B, C, and D. Segment A begins at (0, 0) and rises up and to the right passing

There is a 12 V potential difference between the positive and negative ends of the jumper cables, which are a short distance apart. An electron at the negative end ready to jump to the positive end has a certain amount of potential energy. On what quantities does this electrical potential energy depend? View Available Hint(s)for Part B only the

Find the strain fields in an object made of a homogeneous and isotropic material with elastic constants E and , for the following stress states

When placing a positive test charge to calculate an electric field, does a negative field cause the charge to attract and a positive field cause it to repel

An electric traction motor provides a torque of 400 N.m while rotating through 60 revolutions in 9 seconds. If the motor is 99% efficient, determine the electrical power input in kW. Question at position 5 A spring is 2 in. long when loaded with 23 lb and 8 in. long when loaded with 25 lb. Determine the spring constant in lb/in

A stopcock valve parallel to the gas piping indicates it is in the 'Off" position. True False 2. The ignition temperature of natural gas is between: 900 and 1170 degrees Fahrenheit 150 and 500 degrees Fahrenheit 2200 and 3200 degrees Fahrenheit 50 and 200 degrees Fahrenheit 3. The interstate transmission system of processed natural gas relies on

Compared to the charge and mass of a proton, an electron has ________. Question 46Answer a. an opposite charge and the same mass b. the same charge and a smaller mass c. an opposite charge and a smaller mass d. the same charge and the same mass

According to AS/NZS 1680.1:2006, what is the acceptable colour temperature for most industrial and office lighting applications? a. > 4000 K. b. > 13500 K c. > 10000 K d.

M-BIST must be initiated on a system from a power-off state either connected to AC power or with battery only. True or False

Decide if the following answer is true or false for the question: Could one of the stars listed in the table above be an RR Lyrae star? Explain why or why not. Answer: Yes, Star B is a RRLyrae star because it has an absolute magnitude of 5.0. True

A rigid tank of volume 0.5 m3 initially contains ammonia at 1.5 bar and 20C (State 1). The tank is connected through a valve to a large supply line that carries ammonia at 12 bar and 60C. The valve is opened and ammonia is allowed to flow slowly into the tank until there is 3.35 kg of ammonia at 20C in the tank (State 2) at which point the valve

(a) (50 pts) Calculate the escape velocities (in meters per second) of the Earth, Venus, Mars, Mercury, the Moon, Ryugu, Bennu, Phobos, and a neutron star with a mass of 1.5 solar masses and an assumed radius of 10.7 km (look up Mand Rof solar system objects on the Web). 5 points for each object; for the last 5 points, compare the escape velocity

1. The engine of the boat provides an acceleration of 10 m/sec2. The deceleration due to water and air resistance is proportional to the speed of the boat. As the boat was drifting at the speed of 1 m/sec, the engine was turned on at time t = 0, propelling the boat in the same direction. The boat then approached its limiting speed of 5 m/sec. At

Por una tubera horizontal circula aire comprimido. Un manmetro de Venturi se conecta en tres puntos de la tubera para controlar el flujo del gas. Cul es el esquema que representa mejor el manmetro de Venturi cuando el gas fluye? \f

the following accurately By evaluating the lesson, it has become clear that Al Assistants are not infallible. The lesson is not perfect and can be improved, especially from a Critical Literacy perspective. While the image of the advertisement is included in the lesson plan, none of the tasks or questions refer to it specifically. This is where the

All of the following are guidelines for using the oil-immersion lens EXCEPT which statement? Place the slide on the microscope and focus first on low power, then medium and the high dry magnifications. Once the oil is applied and the oil-immersion objective lens is moved in place, focus the lens with the fine focus knob. Once the oil-immersion

The electromagnetic spectrum is comprised of charged particles (choose all that apply): Question 6Select one or more: a. Wavelength is inversely proportional to photon energy and frequency. b. The charged particles exhibit wave-like properties. c. Gamma rays have longer wavelengths but have low energy. d. Each band in the electromagnetic spectrum

The properties of objects such as air and matter is Option A physical science Option B life science Option C earth and space science Option D engineering, technology, and applications of science

Which observation correctly applies to galaxies in other superclusters? a) They are all moving towards us. b) They are all moving away from us because the universe is expanding c) They are all larger than the Milky Way. d) They are all smaller than the Milky Way a d c b

Tarea 3: Modelado de la trayectoria de las manecillas de un reloj. Fin de aprendizaje:

GPR works on collecting information on the energy absorbed from the different dielectric interfaces between materials of differing dielectric properties. Question 4 Select one: True False

What was the Solar Neutrino Problem? Group of answer choices We detect no neutrinos from the Sun. We detect 3 times the predicted number of neutrinos from the Sun. We detect only 1/3 of the predicted number of neutrinos from the Sun

1. Whatpropertyofoilmakesitfloatonwater? 2. Whywouldheatingthegasinahotairballoonmaketheballoonrise? 3. Whatisthedifferencebetweendensityandspecificgravity? 4. Anobjecthasamassof18.4gandavolumeof11.2mL. a. What is the density of the object? b. What is the specific gravity of the object? c. Will the object sink or float in water? 5.

Read this laboratory experiment carefully to become familiar with the background and the procedural steps in this experiment. Carefully read each section and become familiar with the equations for each circuit. Using the simulation package of your choice in which you are the most familiar with: Multisim, Workbench or LTSpice IV simulate the

Formulas con sus despejes y unidades para resolucin de estos problemas y para que sirven

Pick the correct answer Question 19 5 pts According to Hirschi's (1969) Social Control Theory, the element of Involvement refers to how much time is spent doing conventional activities. O True O False Question 20 5 pts Sampson and Laub found 3 major turning points in the lives of the Gluck men: getting arrested, going to prison, and finding

Fill in the blank The natural process(es) of can be exploited in the lab to facilitate cloning. Multiple Choice transduction transfection O transformation All of the choices are correct.

Pick the correct answer Question 3 5 pts The Age-Crime Curve shows crime rates increasing rising sharply in early adulthood, peaking at middle age, and then declining more gradually thereafter. O True False Question 4 5 pts Diversion programs are a crime control strategy associated with Labeling Theory. O True O False

QUESTION 7 A glass tube is filled with hydrogen gas. An electric current is passed through the tube, and the tube begins to glow a pinkish/purple color (this is how fluorescent bulbs and neon signs produce light). If you were to pass this pink light through a prism to separate the individual light frequencies, you would see that this pink light is

. On the force table, set up three component vectors A, B, and C from the instructor's team assignments. 2. Use the force table to find experimental values for the equilibrant and the resultant. Record these in Table III. Weight Force Angle Degrees % Difference Error Exper vs Analytical Equilibrant (experimental) 300g 90 NA Resultant

Electricity exhibits _________ effects. Select the correct response: magnetic, thermal, and chemical magnetic and thermal magnetic and chemical magnetic

Activity 1: Measurement Levels In order to explain the issue, we will shoot broadside at the weather-forecasters on TV. Have you ever heard a statement from them such as "On Thursday, it will be twice as warm as today"? What do you think about this statement? Before you keep on reading, please take the poll (you don't have to post about this on

If force is applied at the axis, explain why no torque is created

Making your friend (a true admirer! ) Get your balloon of choice and inflate it. Tie a small piece of string (or ribbon) to the bottom of the balloon. Tape your new friend by the string to either a cabinet door or a big door. What happens? What happens when you approach your new friend (balloon) ? Why does this happen

(c) (30 pts) Olympus Mons is the highest mountain in the Solar System. It rises 26 km above the surface of Mars and extends roughly 600 km in diameter. For the purpose of this question, you can assume that the bedrock under the volcano is flat, rather than following the curvature of Mars' surface. Explain your reasoning for each answer.(a)

Now consider the same system: a monatomic gas of particles of mass m , except in three dimensions. Find vrms , the rms speed if the gas is at an absolute temperature T

After running the simulation at various inputs, please answer the following In general, what is the relationship between density of earth and temperature? Explain why

This type of sign that Charles Pierce introduced us to has an "existential" relationship to an object. Physically connected to an object like a fingerprint representing a person. Group of answer choices Indexical Symbolic Iconic Negative

According to the Special Theory of Relativity, can you travel at speed c? Group of answer choices Yes. No. Not yet, but we will find out how to do this sometime soon

For each of the following scenarios, describe the force providing the centripetal force for the motion:a. a car making a turnb. a child swinging around a polec. a person sitting on a bench facing the center of a carouseld. a rock swinging on a stringe. the Earth orbiting the Sun.

Two incline have idential shape: L = 10.2 m , h = 5.56 m . Case (1) The incline has no friction. Case (2) The suitcase slides down the incline with kinetic friction. But the coefficient of kinetic friction is unknown. The suitcase' mass is m = 25.8 kg , The magnitude of the gravitational acceleration is 9.80 m/s2 . In both cases, at the top of the

Two 60 foot tall street lights are 100 feet apart. The light at the top of one is functioning but the other is being repaired by an electrician. If the electrician drops a tool kit from the top of the second pole, how fast is its shadow moving when the toolkit is 20 feet from the ground? (Use 2 s t =16 for the distance the kit falls in t seconds

(a) Discuss the differences between wave speed, shock wave speed, and average speed as represented by a q-k relationship. (b) Prove that the average speed is always greater than the wave speed. What does this imply? (You may use Greenshield's model for the proof.) (c) Can the shock wave speed be equal to the average speed? If so, when will this

A 0 0 meson ( m 0 = 2.4 1 0 28 , kg m 0 =2.410 28 ,kg) travels at a speed of v = 0.80 c v=0.80c. (a) Calculate its kinetic energy using: (i) the classical or general equation for kinetic energy. (ii) the relativistic equation for kinetic energy. (b) Calculate the percentage difference between the two values determined above

By what factor does the average translational kinetic energy of a molecule change if the temperature is doubled? Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value type Activate to select the appropriates symbol from the following choices.

Formula 1point ca Determine the magnitude, in Newton, of the resultant R of the force system shown in the figure. Forces are given as follows: P= 4N,Q = 17 N,S=12N. Note, forces pointing up are to be reported positive and those pointing down negative. Provide your answer in N and round to the nearest three decimal places

A production casing string of 7"/P-110/38 (wall thickness of 0.540 in, ID = 5.920", regular buttress coupling) is set at a depth of 10000 ft. Calculate the following: 1) The suspended weight in 13 ppg mud; 2) Calculate the bending force of the casing if the dogleg is 3 degree/100 ft. 3) Calculate the shock load if the casing being run into the

A large plate slides down an incline (with angle A as shown) on top of an incompressible liquid film of thickness 8. Derive an expression for the steady state plate velocity Vp as a function of the fluid properties and film thickness assuming the plate has a total mass M and contact surface area A

4-14. A block of mass 3m and a sphere of mass m are initially motionless and are separated by a distance l on a smooth horizontal plane, as shown, At t = 0, a constant horizontal force F is applied to the block, causing it to hit the sphere repeatedly. Assuming a coefficient of restitution e = 0.8 for collisions between the block and the sphere,

Consider the Washington Monument in Washington, D.C. in the United States. What forces act between it and the Earth and how do they compare? The monument is attracted to the Earth with a force equal to its weight, and the Earth is attracted to the monument with a force equal to the Earth's weight acting in the same direction. The monument is

Electrons have Blank______. Multiple choice question. no charge a positive charge a negative charge

2. An electron in a magnetic eld [10 pts]. Imagine that we have an electron in a spatially-varying magnetic eld in which B = ax2 and a = 10 G/mm2. Assume that the eld is in the up (+y) direction to which the spin is either aligned ( up ) or anti-aligned ( down ). (a) What is the energy of the electron in each spin state as a function of position x

You have been tasked with designing an aircraft cargo door. This door will be opened multiple times a day to load and unload heavy luggage. As a materials engineer, your job is to select the top three material candidates for this task. The material must be strong, as the door will experience significant fluctuating weight. It also needs to

A point charge with charge q1 = 2.60 C is held stationary at the origin. A second point charge with charge q2 = -4.60 C moves from the point ( 0.110 m , 0) to the point ( 0.265 m , 0.290 m ). How much work W is done by the electric force on the moving point charge? Express your answer in joules. Use k = 8.99109 Nm2/C2 for Coulomb's constant: k=140

The variable-length vertical arrows in the figure represent the changing Blank______ of the projectiles. Multiple choice question. position velocity acceleration

PHY 2054C Module 2 Application Project An RC circuit is a commonly used circuit in many electronic devices because it allows you to charge/discharge a capacitor at a controlled rate. In this project you will be using a virtual simulation to understand the behavior of some basic DC circuits, including an RC circuit

Water waves have the ability to travel around corners and obstacles and through openings. What reaction can be demonstrated by placing small barriers and obstacles in a ripple tank and observing the path of the water waves as they encounter the obstacles and bend around them? Group of answer choices Infraction Diffraction Reflection Refraction

True or False Question Line charts can be useful for comparing variables that differ in magnitude or units

Force vector components for a sled pulled horizontally by a rope at an upward angle _______. are always opposite each other add up to 180 add up to 90 are normally at right angles to each other Question 10 Question 10

Multiple Choice Question Consider three electric fields A, B, and C. The electric field lines are the closest to each other in field A, while they are the farthest from each other in field C. Which of the following statements is true of these electric fields? Multiple choice question. Electric field B is the strongest. Electric field C is the

Climate: question 1. How does rainfall change as you go up higher and higher in Waipi'o Valley? Basic Instructions: write down (keep track of) elevation and rainfall at 20.1180 -155.5962 (Mouth of Waipi'o Valley) at 20.0868 -155.6431 (narrow ridge at confluence of multiple tributaries) and at 20.0854 -155.6780 (head of erosional valleys) Group of

What is the effect of the Earth's magnetic field on the emf induced in the secondary coil? Explain

A 250 g ball travels at a velocity of 40 m/s. Its momentum is Group of answer choices 16 kg.m/s 4 kg.m/s 40 kg.m/s 10 kg.m/s

Extra Credit: A new planet has been discovered in the Solar System, and it is traveling in a circular orbit around the Sun. The planet has a semi-major axis of 86 AU. What is the average velocity of the planet in km/sec? Canvas requires you to round your answer to a total of 3 digits as in "x.xx". (Hint: first find the period in years, then use

which velocity-time graph below best represents the speed of a charged particle in a uniform electric field as a function of time? (a) straight line with negative slope (b) straight line with positive slope (c) negative slope (d) positive slopd

Why must every heat engine have a cold reservoir? Because it is impossible for even a perfect engine to convert heat entirely into mechanical work. Because the cold reservoir keeps the engine from overheating. Because the cold reservoir keeps the engine from overcooling. Because the cold reservoir increases the power of the engine

Part A In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 110 mph , how much time elapses between the hit and the ball reaching the pitcher? Express your answer with the appropriate units. OE ? t= Value Units Submit Request Answer Provide Feedback

Two friends drive off in different directions from the same place. One heads North at 50 miles per hour, while the other heads East at 20 miles per hour. Complete an equation for the distance between the friends after t hours

What is the principal difference between a radio wave and visible light? Between visible light and an X-ray? Radio waves have a lower frequency and longer wavelength than visible light waves. Light waves have a lower frequency and longer wavelength than X-rays. Radio waves have a lower frequency and shorter wavelength than visible light waves.

In what way is creativity and problem solving improved with a more diverse work force? Question 6 options: A diverse work force doesn't help in these areas. It increases groupthink. It reduces groupthink. All of the other answers are correct

The ocean is a large b\ody of water with an enormous mass, m. The air by the ocean rapidly changes temperature as day turns to night and vice versa. Would you expect the ocean to experience the same rapid temperature fluctuations as the air? Explain your

Anytime something is on our minds, it uses up energy Group of answer choices True False

Show pictures for all questions 1. Two 7.80 g small spheres are charged equally and placed 6.5 cm apart. When released, they begin to accelerate at 250.0m/s?. What is the magnitude of the charge on each sphere? How many exceeded electron are there on each charge? A 8.0 milligrams particle with electric clIIarge of +150.0 uC orbits a charged wire,

Svete on site 1 is 1.18 AND site 2 is 1.03 y (m/s) Velocity of Ouzel River flow An average velocity of Ouzel River flow Site 1 Site 2 1.25 1.00 0.75 Velocity (m/s) 0.50 0.25 0.00 SITE 1 VS SITE 2

What do freeze-thaw and salt weathering have in common? Both freeze-thaw and salt weathering require rain. Only salt weathering forces rocks apart physically. Both freeze-thaw and salt weathering force rocks apart physically. Only freeze-thaw weathering requires rain. Both freeze-thaw and salt weathering require rain and force rocks apart

using physics Question 6 2 pts You use two rubber bands, side to side first, to hold an object. Then, the bands are pulled apart in their free ends so that they are not vertical anymore. Compare the forces on the bands, in this situation, to the original case, when there was no angle, and the bands are side by side. The tension (forces) in the

The speed of sound in human tissue is 1540 m/s. What is the wavelength of a 40 MHz sound wave as it moves through human tissue? What is the wavelength of the same wave in air with a speed of sound of 350 m/s? 1 MHz = 1,000,000 Hz

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