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Physics Questions and Answers October 09, 2019

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A child standing on the ground throws a water balloon of mass m straight upwards at a velocity vy 0 . It reaches its highest point before falling down and landing in a treehouse. Without using kinematics, find the following: How much work has gravity done on the water balloon: When it reaches its maximum height above the ground?When it lands in

What is the speed of sound ( in m / s ) in a medium where a 1 4 5 kHz frequency produces a 0 . 8 9 0 cm wavelength? ( b ) Which substance in this table is this likely to be ?

A space platform in the form of a thin circular disc of radius a and mass m ( flying saucer ) is initially rotating steadily with angular velocity about its symmetry axis. A meteorite strikes the platform at the edge, imparting an impulse P to the platform. The direction of P is parallel to the axis of the platform, and the magnitude of P is equal

What is the mass defect of ( atomic mass = 1 1 9 . 9 0 2 2 0 0 u ) ? The hydrogen atom has a mass of 1 . 0 0 7 8 3 u; and the neutron has a mass of 1 . 0 0 8 6 7 u .

A cylindrical rod of uniform density is located with its center at the origin, and its axis along the z axis. Its radius is 0 . 0 3 m , its length is 0 . 7 m , and its mass is 8 kg . It makes one revolution every 0 . 0 7 s . If you stand on the + x axis and look toward the origin at the rod, the rod spins clockwise. What is the rotational angular

How far, and in what direction, should a cellist move her finger to adjust a string's tone from an out - of - tune 4 5 2 Hz to an in - tune 4 4 0 Hz ? The string is 6 8 . 0 cm long, and the finger is 1 7 . 1 cm from the nut for the 4 5 2 - Hz tone. ( Assume the tone comes from the portion of the string between the cellist's finger and the end

An automobile has a mass of 1 , 7 3 2 kg , and its aluminum brakes have an overall mass of 8 . 7 5 kg . ( a ) Assuming all the internal energy transformed by friction when the car stops is deposited in the brakes and neglecting energy transfer, how many times could the car be braked to rest starting from 2 3 . 0 m / s before the brakes would begin

A small block with mass 0 . 2 0 0 kg is attached to one end of a light rope and is swung in a vertical circle while the other end of the rope is held stationary. The length of the rope is 1 . 2 0 m . When the block is at the top of its vertical path its speed is 5 . 0 0 m / s . When the block is at this point what is the tension in the vertical

work of 2 2 0 0 joules is done on an ideal gas, but the internal energy increases by only 1 5 0 0 joules. what is the amount and direction of heat flow into or out of the system?

Suppose you have a 9 . 6 cm diameter fire hose with a 3 . 6 cm diameter nozzle. a ) Calculate the pressure drop due to the Bernouli effect as water eneters the nozzle from the hose at the rate of 4 0 . 0 L / s . Take 1 . 0 0 x 1 0 ^ 3 for the density of the water. b ) To what maximum height, in meters, above the nozzle can this water rise?

A mechanic pushes a 2 . 0 0 1 0 3 - kg car from rest to a speed of v , doing 4 , 8 9 0 J of work in the process. During this time, the car moves 2 9 . 0 m . Neglecting friction between car and road, find v and the horizontal force exerted on the car. ( a ) the speed v m / s ( b ) the horizontal force exerted on the car ( Enter the magnitude. ) N

the figure shows a circular region of radius R = 2 . 5 cm in which an electric flux is directed out of the plane of the page. The flux encircled by a concentric circle of radius r is given by

Spin waves. We saw in class that for long wavelengths, the frequency of a propagating sound wave is related to

3 . Find the maximum possible number of photons emitted by a hydrogen electron located at the energy level \ ( \ mathrm { n } = 5 \ ) .
3 . Find the maximum possible number of photons

Part C Select the correct two - dimensional cross sections of three - dimensional closed surfaces through which the electric flux is 3 q 0 .
Part C Select the correct two - dimensional cross

What is the charge on a helium nucleus in units of qe = 1 . 6 * 1 0 ^ - 1 9 C

Calculate the acceleration of particle 2 . Give the direction relative to the compass points. See attached picture.
Calculate the acceleration of particle 2 . Give

Problem 6 . 2 9 . Although an ordinary H 2 molecule consists of two identical atoms, this is not the case for the molecule HD , with one atom of deuterium ( i . e . , heavy hydrogen, ? 2 H ) . Because of its small moment of inertia, the HD molecule has a relatively large value of l o n : 0 . 0 0 5 7 e V . At approximately what temperature would
Problem 6 . 2 9 . Although an ordinary H 2

The mathematical forms for the three sinusoidal traveling waves are given by wave 1 : y ( x , t ) = ( 2 c m ) s i n ( 3 x - 6 t ) wave 2 : y ( x , t ) = ( 3 c m ) s i n ( 4 x - 1 2 t ) wave 3 : y ( x , t ) = ( 4 c m ) s i n ( 5 x - 1 1 t ) where x is in meters and t is in seconds. Of these waves: wave 2 has the greatest wave speed and wave 3 has
The mathematical forms for the three sinusoidal

Recent observations of distant supernovae indicate that the universe is expanding with decreasing speed. the universe is expanding with increasing speed. the universe is expanding at a constant speed. the universe is in equilibrium, neither expanding nor contracting the universe is contracting at a constant speed.
Recent observations of distant supernovae

You are camping after a long day of hiking ( you hike for 1 0 hours without food but plenty of water ) . You are feeling faint, dizzy and cold so you start a fire and begin preparing smores and cooking some steak. Unfortunately, a family of black bears was nearby, and they smell the meat and start charging towards your camp site. One of your
You are camping after a long day of hiking ( you

As shown in the figure, a thin film is deposited on top of a substrate. The index of refraction is n 2 = 1 . 3 4 and n 3 = 5 . What is the minimum thickness of the thin film that will result in constructive interference for the visible light of wavelength = 4 7 1 n m , reflected from the top of the film in air? Express the answer in the unit of
As shown in the figure, a thin film is deposited

Formulate a rule for predicting how the current through the battery would change ( increase , decrease, or remain the same ) if the number of bulbs connected in parallel were increased or decreased. What does this imply about the total resistance of the circuit? Base your answer on your observation of the behavior of the two - bulb parallel

The effect of the dispersion process is that, in deep water, the group of wave travels at a speed equal to half the speed of the individual waves in the group.

A carousel is initially at rest. At t = 0 it is given a constant angular acceleration = 0 . 0 6 0 rad / s 2 , which increases its angular velocity for 8 . 0 s . Determine the magnitude of the tangential ( linear ) acceleration of that child. to . 0 . 1 5 m / s 2 b . 1 . 9 0 m / s 2 c . 3 . 0 0 m / s 2 d . 0 . 7 2 m / s 2

The baryon has S = 3 . ( a ) It is desired to produce the using a beam of Kincident on protons. What otherparticles are produced in this reaction? ( b ) How might the decay ?

What is the electric field at x = 3 . 4 0 m , y = 0 ?

An air - track glider attached to a spring oscillates between the 1 2 . 0 cmcm mark and the 6 5 . 0 cmcm mark on the track. The glider completes 1 0 . 0 oscillations in 3 2 . 0 s . What is the amplitude of the oscillations?

[ - / 6 Points ] SERCP 1 1 2 2 . 3 . P . 0 1 8 . ASK YOUR TE ( c ) Find the lateral distance d by which the light beam is shifted.cm ( d ) Calculaty the speed of light in the glass.m / / s ( e ) Calculate the time required for the light to pass through the glass block. ( f ) Is the travel time through the block affected by the angle of
[ - / 6 Points ] SERCP 1 1 2 2 . 3 . P . 0 1 8 .

The heaviest invertebrate is the giant squid, which is estimated to have a weight of about 0 . 4 5 tons spread out over its length of 3 9 feet. What is its weight in newtons?

What is the maximum efficiency of a heat engine whose operating temperatures are 6 5 0 C and 3 8 0 C ?

sand us defended as mineral particles of diameter 0 . 0 5 x 1 0 ^ - 3 m to 2 . 0 x 1 0 ^ - 3 m; clay is defined as mineral particles of diameter less than 2 . 0 x 1 0 ^ - 6 m . ( a ) assuming that the particles are spherical and have identical densities, what is the ratio of the terminal speeds of the largest sand and largest clay particles, when

While falling from a tree, an apple feels a 1 . 0 N gravitational force exerted on it by the Earth. What is the magnitude of the force exerted by the apple on the earth? A ) 1 . 8 1 0 - 2 5 N B ) 0 . 1 1 N C ) 1 . 9 1 0 1 0 N D ) 1 . 0 N
While falling from a tree, an apple feels a 1 . 0

When a life preserver having a volume of 0 . 0 3 m 3 is immersed in seawater ( = 1 0 3 0 kg / m 3 ) , it will just support a clothed 8 0 - kg man with 2 0 % of his body above water. What is the density of the material composing the life preserver? Assume the man has a density of 1 2 0 0 kg / m 3 .

an amateur is a meter that measures the current through an electric circuit. What will happen to the reading in an ammeter if you decrease the resistivity of a wire while keeping the voltage constant

voltage across coil is determined by multiplying the magnitude of the coil and the rate of change of the current through the coil

A 1 2 . 5 FF capacitor is connected to a power supply that keeps a constant potential difference of 2 6 . 0 VV across the plates. A piece of material having a dielectric constant of 3 . 7 5 is placed between the plates, completely filling the space between them.

A grinding wheel 0 . 3 8 mm in diameter rotates at 2 5 0 0 rpm . Calculate its angular velocity in rad / s . What is the linear speed of a point on the edge of the grinding wheel? What is the acceleration of a point on the edge of the grinding wheel?

The escape velocity of any object from Earth is 1 1 . 2 km / s . ( a ) Express this speed in m / s and km / h . ( b ) At what temperature would oxygen molecules ( molecular mass is equal to 3 2 . 0 g / mol ) have an average velocity vrmsvrms equal to Earth s escape velocity of 1 1 . 1 km / s ?

When the current in a long, straight, air - filled solenoid is changing at the rate of 3 0 0 0 A / sA / s , the voltage across the solenoid is 0 . 6 0 0 VV . The solenoid has 1 2 0 0 turns and uniform cross - sectional area 1 5 . 0 mm 2 mm 2 . Assume that the magnetic field is uniform inside the solenoid and zero outside, so the inductance formula

7 . Does the strength of a person s arm depend on the length of the arm or on its cross - sectional area?

When work W is done on an ideal gas of N diatomic molecules in thermal isolation, the temperature increases by Select answer from the options below W / 3 Nk . W / Nk . 2 W / 5 Nk . 2 W / 3 Nk . W / 2 Nk . Save for Later Submit Answer

Electromagnetic radiation from a 7 . 0 0 mW laser is concentrated on a 4 . 0 0 mm 2 area. ( a ) What is the intensity in W / m 2 ? Suppose a 5 . 0 0 nC electric charge is in the beam. What is the maximum electric force ( in N ) it experiences? ( Enter the magnitude. ) If the electric charge moves at 3 0 0 m / s , what maximum magnetic force ( in N

Suppose 9 . 3 0 1 0 5 J of energy are transferred to 2 . 0 0 kg of ice at 0 C . Calculate the energy required to melt all the ice into liquid water. HIDE ANSWER 6 . 6 6 1 0 5 J How much energy remains to raise the temperature of the liquid water? SHOW ANSWER Determine the final temperature of the liquid water in Celsius.

The linear expansion coefficient a for Al is 2 3 * * 1 0 - 6 C . A rod with a cross - sections area of 1 c m 2 and a length L = 1 0 0 c m is heated from 2 0 C to 1 2 2 C . What is its change in in its volume, V , in m m 3 ? Enter an integer.
The linear expansion coefficient a for Al is 2 3

Based on your knowledge on Projectile Motion, briefly explain the characteristics of Horizontal Projection and Oblique Projection. Based on the information, give an application of each type of motion giving proper justification.

A particle with a mass of 1 . 9 3 1 0 4 kgkg carries a negative charge of - 3 . 3 0 1 0 8 CC . The particle is given an initial horizontal velocity that is due north and has a magnitude of 3 . 5 1 1 0 4 m / sm / s . What is the magnitude of the minimum magnetic field that will keep the particle moving in the earth's gravitational field in the same

An A C voltage of the form v = 1 2 0 s i n 2 9 0 t where v is in volts and t is in seconds, is applied to a series RLC circuit. If R = 5 2 . 0 , C = 2 8 . 0 F , and L = 0 . 3 0 0 H , find the following. ( a ) the impedance of the circuit 6 3 . 3 3 ( b ) the rms current in the circuit ( c ) the average power delivered to the circuit W
An A C voltage of the form v = 1 2 0 s i n 2 9 0

Heat and temperature are equivalent quantities. ( same quantities have the same dimension and units ) True 2 UNANSWERED QUESTION 1 2
Heat and temperature are equivalent quantities. (

What is the maximum radiation pressure exerted by sunlight in space 1 , 3 4 0 . 4 9 on a flat black surface? Your answer will be in P a . Enter only the numerical value, NO units and use two decimal places for answer.
What is the maximum radiation pressure exerted by

What is the minimum x - ray wavelength produced when electrons are accelerated through a potential of 5 0 8 0 0 V ? (

Question 1 5 1 pts When the polar jet is aligned in a nearly straight west to east direction with very little northward or southward flow, we refer to it as q , straightus jetus zonal equilateral meridional
Question 1 5 1 pts When the polar jet is aligned

The number density of gas atoms at a certain location in the space above our planet is about 1 . 0 5 \ times 1 0 1 1 m - 3 , and the pressure is 2 . 9 5 \ times 1 0 - 1 0 Pa in this region.

2 . ( 3 . 5 ) A jet plane is flying at a constant altitude. At time 1 = 0 , it has components of velocity = 8 8 m / s , = 1 1 5 m / s . At time 2 = 3 0 . 0 s , the components are = - 1 7 5 m / s , = 3 5 m / s . a . For this time interval calculate the acceleration along the x - axis b . For this time interval calculate the acceleration along the y

Which of the following is not ferromagnetic? a . Iron b . Nickel c . Silver d . Cobalt
Which of the following is not ferromagnetic? a .

Some materials are difficult to magnetize ( them ) but they ( later , after they were finally magnetized ) keep their magnetism for a long time. We call them: Hard magnets; Semi - hard magnets; Semi - soft magnets; Soft magnets.
Some materials are difficult to magnetize ( them

a 2 0 3 0 lumen light bulb hangs from a tree limp 3 m above the ground. what is luminance intensity of that light bulb? What is the illuminance on the ground at thee brightest point? What is the illuminance on the egornd, four meters awayf rom the brightest point?

A heat engine uses a large insulated tank of ice water as its cold reservoir. In 1 0 0 cycles the engine takes in 8 0 0 0 JJ of heat energy from the hot reservoir and the rejected heat melts 0 . 0 2 0 0 kgkg of ice in the tank. During these 1 0 0 cycles, how much work is performed by the engine?

1 . The non - vanishing Christoffel symbols in the Schwarzschild spacetime are t tr = GM r ( r 2 GM ) , r tt = GM ( r 2 GM ) r 3 , r rr = GM r ( r 2 GM ) , r = ( r 2 GM ) , r = ( r 2 GM ) sin 2 , r = 1 r , = sin cos , r = 1 r , = 1 tan . Write down the geodesic equations for the Schwarzschild spacetime and explain their relevance.

blocks A and B are connected by a massless string over a massless frictionless pulley. The blocks have just this instant been released from rest. Will the blocks accelerate? If so , in which directions?

An electrostatic overlapping plate linear actuator has a finger length = 6 . 2 mm W = 6 . 2 mm , width = 3 mm G = 3 mm , and a separation of = 0 . 5 5 mm s = 0 . 5 5 mm between the plates. If the applied voltage is = 5 5 0 V V = 5 5 0 V , calculate the force obtained from one finger with two plates.

A copper wire of cross - sectional area 2 . 2 0 1 0 - 6 m ? and length 3 . 6 0 m has a current of 2 . 0 0 A uniformly distributed across that area. ( a ) What is the magnitude of the electric field along the wire? ( b ) How much electrical energy is transferred to thermal energy in 2 0 . 0 min?

Question 5 : Deflection of a Light Beam You fire a beam of light through a rectangular box - shaped prism made out of polystyrene plastic hitting it at an angle of \ ( 2 0 ^ { \ circ } \ ) . By what distance is the beam displaced when it emerges from the prism?
Question 5 : Deflection of a Light Beam You fire

1 . What is a normal PR interval? a . 0 . 2 0 - 0 . 3 0 seconds b . 0 . 0 4 - 0 . 1 2 seconds c . 0 . 0 6 - 0 . 2 0 seconds d . 0 . 1 2 - 0 . 2 0 seconds

Note the negative ( - ) sign for work, W , in the above equation. The choice of a negative or a positive sign depends on the way you describe the system. Explain when the work term would have a positive magnitude and when it would have a negative magnitude. In your response, utilize the work equation, which is below, to justify your response. W =

A cubic box of volume 7 1 0 2 m 3 is filled with air at atmospheric pressure at 1 3 C . The box is closed and heated to 1 7 0 C . What is the net force on each side of the box?

rate of change off the magnetic field inside a coil

how many joules is 8 0 0 newtons

Oppositely charged parallel plates are separated by 3 . 9 5 mm . A potential difference of 6 0 0 V exists between the plates. ( a ) What is the magnitude of the electric field between the plates? N / C ( b ) What is the magnitude of the force on an electron between the plates? N ( c ) How much work must be done on the electron to move it to the

Example 8 . 2 You throw a ball with a mass of 0 . 4 0 kg against a brick wall. It is moving horizontally to the left at 3 0 m / s when it hits the wall; it rebounds horizontally to the right at 2 0 m / s . ( a ) Find the impulse of the net external force on the ball during its collision with the wall. ( b ) If the ball is in contact with the wall

the current in a . 4 H inductor increased from 2 A to 3 A in 1 . 5 s . The energy stored by the inductor during this processes increases by

a person hears a 4 hz beat frequency when a tone of 2 8 0 hz is played

A pyrotechnic rocket explodes at a height of 1 0 0 m above the ground. An observer on the ground directly under the explosion experiences an average sound intensity of 7 . 0 0 1 0 - 2 W / m 2 for 0 . 2 s . ( a ) What is the total amount of energy transferred from the explosion by the sound? ( b ) What is the sound intensity level ( SIL ) in

2 ) We wrap a light, nonstretching cable around a solid cylinder with radius R = 2 m and moment of inertia I = 4 kg m 2 . The cylinder rotates with negligible friction about a stationary horizontal axis. We tie the free end of the cable to a block of mass m = 1 kg and release the block from rest at a distance h = 1 . 6 m above the floor. As the

Given that the speed of some transverse eave is 2 0 0 m / s and the frequency of oscillation is 1 Hz , what is the wavelength of this wave? What is the wave number? What is the angular frequency? If the linear mass density mu = . 5 kg / m , what would the restoring force be ? If I define a maximum amplitude of 5 m , what is the function

A bullet is fired into a large stationary absorber and comes to res. Temperature measurements of the absorber show that the bullet lost 2 0 9 0 J of kinetic energy, and high - speed photos of the bullet show that it was moving at 9 6 5 m / s just as it struck the absorber .

What interference pattern is seen if the laser is replaced with an incandescent lamb

The nucleus of the hydrogen atom has a radius of about 1 . 1 x 1 0 ^ - 1 5 m . The electron is at a distance of about 5 . 2 9 x 1 0 ^ - 1 1 m from the nucleus. Assuming the hydrogen atom is a sphere with a radius of 5 . 2 9 x 1 0 ^ - 1 1 m , find ( a ) the volume of the atom, ( b ) the volume of the nucleus, and ( c ) the percentage of the volume

A 1 5 . 0 kg wheel, essentially a thin hoop with radius . 5 7 0 m , is rotating at 1 8 5 rev / min . It must be brought to a stop in 2 5 . 0 s . ( a ) How much work must be done to stop it ? ( b ) What is the required average power?

You push a bar magnet towards a loop, with the north pole toward the loop. As the magnet is entering the loop the induced current is clockwise . If you keep pushing the magnet straight through the loop, what will the be the direction of the current as you pull the magnet out on the other side?Group of answer choicescounterclockwisenothing

What is the resistance of a light bulb that draws 2 A when it is plugged into a 1 2 0 - V outlet?

Little Taka and his family rode the elevator to the top - level viewing observatory 4 5 1 meters above the ground. Running to the observatory edge, he drops a 1 0 0 Yen coin directly downward from the edge, and then quickly starts the timer on his Apple Watch ( the coin s initial velocity in the y - direction is 0 m / s ) . Calculate how long it

Scientists can measure the distance to the moon with great accuracy by firing a laser pulse and then timing how long it takes to see the reflection from mirrors left on the moon by Apollo astronauts 5 0 years ago. A laser beam may seem to be a perfectly straight line as it crosses a room, but any laser beam is actually spreading out as it travels

Passing an electric current through an unknown gas produces several distinct wavelengths of visible light. First - order maxima appear at angles of 2 3 . 9 , 3 0 . 7 , 3 4 . 3 , and 4 2 . 1 when projected on a diffraction grating having 1 0 , 0 0 0 lines per centimeter. A . What is the wavelength, in nanometers, for the line at 2 3 . 9 ? B . What

Human vision is limited to wavelengths ranging from _ _ _ _ _ _ _ _ nm . Group of answer choices 4 to 7 0 4 0 to 7 0 0 4 , 0 0 0 to 7 , 0 0 0 4 0 0 to 7 0 0 4 0 0 to 7 , 0 0 0

4 3 4 4 . Motion in a gravitational field An object is fired vertically upward with an initial velocity v ( 0 ) = v 0 from an initial position s ( 0 ) = s 0 a . For the following values of v 0 and s 0 , find the position and velocity functions for all times at which the object is above the ground ( s = 0 ) . b . Find the time at which the highest

Spacecraft I, containing students taking a physics exam, approaches the Earth with a speed of 0 . 6 4 0 c ( relative to the Earth ) , while spacecraft II , containing professors proctoring the exam, moves at 0 . 2 0 0 c ( relative to the Earth ) directly toward the students. The professors stop the exam after 7 2 . 0 min have passed on their

What is the pressure at a depth of 5 0 0 0 mm in the ocean? Express your answer with the appropriate units. View Available Hint ( s ) for Part A 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 typeActivate to select the appropriates symbol

Chose and watch one of your favorite action, adventure or sci - fi movies ( or show ) and report on: 1 . A specific scene that seems to be reasonable to you from a point of view of physics laws ( mechanics ) : ( 3 points ) a . Describe clearly the scene b . Describe the related physics concept and provide any relevant equation ( s ) c . Explain

You are given two converging lenses to build a compound microscope. Lens A has focal length 0 . 5 0 cm and lens B has focal length of 3 . 0 cm . Which one of the two lenses would you use for the objective? Lens B , because it has the longer focal length. Lens A , because it has the shorter focal length. It makes no difference which lens I use for
You are given two converging lenses to build a

White light reflects at normal incidence from the top and bot - tom surfaces of a glass plate 1 n = 1 . 5 2 2 . There is air above and below the plate. Constructive interference is observed for light whose wave - length in air is 4 7 7 . 0 nm . What is the thickness of the plate if the next lon - ger wavelength for which there is constructive

Prove that the ideal gas equation PV = RT satisfies the cyclic relation

A roller - coaster car is released from rest at the top of the first rise and then moves freely with negligible friction. The roller coaster shown in Figure has a circular loop of radius R in a vertical plane. a ) Find the required height of the incline in terms of R in order to avoid from dropping the car from the point B . b ) If h = ( 7 2 ) R
A roller - coaster car is released from rest at

For Platinum, the Hall coefficient ( RH ) is - 2 . 0 0 1 0 - 1 1 m 3 C . The resistivity is 1 0 . 6 1 0 - 2 m , and the density is 2 1 . 4 5 g c m 3 . Calculate: a ) The molality of electrons. b ) The number of electrons per atom. c ) If a current of 1 2 2 mA flows through a sheet of 0 . 0 0 5 0 3 cm thickness and 2 . 1 2 cm width, what is the
For Platinum, the Hall coefficient ( RH ) is - 2

A block of mass m is connected to a string and hung over a pulley ( Block 1 ) . This string is connected to a second block of mass 2 m ( Block 2 ) . A third block of mass m ( Block 3 ) is stacked on top of and moving with Block 2 ( so there is sufficient static friction between the blocks to prevent sliding ) . Block 2 is also connected to a
A block of mass m is connected to a string and

Electric field and magnetic field: Both are the scalars; Both are the vectors; Exist together: the changes in one field induce the second field existence; The second and third answers are correct.
Electric field and magnetic field: Both are the

The superheroine Xanaxa, who has a mass of 6 0 . 9 kg , is pursuing the 7 9 . 3 kg archvillain Lexlax. She leaps from the ground to the top of a 1 8 5 m high building, then dives off it and comes to rest at the bottom of a 1 7 . 3 m deep excavation where she finds Lexlax and neutralizes him. Does all this bring about a net gain or a net loss of
The superheroine Xanaxa, who has a mass of 6 0 .

A student pushes two blocks across a desk, accelerating both blocks. The mass of block A is larger than the mass of block B . Friction exists on all surfaces. What are the horizontal forces on blocks A and B ? Select all that apply. F p B p e r s o n F f A B F P A p e r s o n F f A d e s k F f B A F f B d e s k
A student pushes two blocks across a desk,

The Moon is halfway through the waxing crescent phase. In approximately how many days will it be in the last quarter phase? Hint: Review the phases of the moon, you will see some questions from there. a . 1 8 b . 1 0 c . 3 1 d . 2 2 Body A has a mass of 0 . 0 0 1 Kg and moving with a speed of 1 0 m s , where body B with mass 5 Kg moving with 1 m s
The Moon is halfway through the waxing crescent

3 3 SSM ILW Figure 2 9 - 6 0 shows a cross section of a long thin ribbon of width w = 4 . 9 1 c m that is carrying a uniformly distributed total current i = 4 . 6 1 A into the page. In unit - wector notation, what is the magnetic field B at a point P in the plane of the ribbon at a distance d = 2 . 1 6 c m from its edge? ( Hint: Imagine the ribbon
3 3 SSM ILW Figure 2 9 - 6 0 shows a cross

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