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Physics Questions and Answers October 14, 2019

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What is the energy released in the beta + nuclear reaction Na to Ne + e ?

( 5 pts ) 1 3 . A small block with mass 0 . 2 0 0 kg slides up a 3 6 . 9 incline from bottom to top, a distance of 2 . 0 0 m . For this displacement of the block, what is the work done on the block by the normal force that the incline exerts on the block? ( a ) zero ( b ) + 3 . 1 J ( c ) - 3 . 1 J ( d ) + 2 . 4 J ( e ) - 2 . 4 J ( f ) none of the
( 5 pts ) 1 3 . A small block with mass 0 . 2 0 0

A block of mass m 1 = 1 2 . 0 k g is connected to a block of mass m 2 = 3 6 . 0 k g by a massless string that passes over a light, frictionless pulley. The 3 6 . 0 - k g block is connected to a spring that has negligible mass and a force constant of k = 3 0 0 N m as shown in the figure below. The spring is unstretched when the system is as shown
A block of mass m 1 = 1 2 . 0 k g is connected to

What is the momentum of a = 0 . 0 3 5 nmnm X - ray photon?

A high viscosity fluid experiences friction between its molecules. Fluid viscosity as temperature increases.
A high viscosity fluid experiences friction

ASK YOUR TEACHE A thin conducting wire is bent into the shape shown in the figure. The circular portion of the wire has radius 3 2 . 0 cm . The wire is in the plane of the screen and carries a current 2 . 0 0 A . What is the magnetic field at the center of the loop? ( Give the magnitude in T and select the direction from the options provided. )
ASK YOUR TEACHE A thin conducting wire is bent

1 0 . 5 Calculating the Rotational Inertia When a thin uniform stick of mass M and length L is pivoted about its midpoint, its rotational inertia is M L 2 1 2 . When pivoted about a parallel axis through one end, its rotational inertia is 7 M L 2 1 2 1 3 ML ? 2 1 2 M L 2 6 M L 2 1 2 M L 2 3
1 0 . 5 Calculating the Rotational Inertia When a

a laser beam is directed at a horizontal glass surface with an angle of incidence of 5 7 degrees. If the angle of refraction is 3 8 degrees, at what incident angle will the reflected beam be fully polarized?

Consider this situation: A person stands at rest on the floor. Identify the forces that act upon the person. Tap to select the forces that are present.
Consider this situation: A person stands at rest

Does steel float? It has a specific gravity of 7 . 8 5 , so cer tainly not in water, but look through the Appendix B and see if there is a fluid in which a solid steel cube will float. Explain.

An ice skater is spinning in a circle with a constant angular speed ( 0 0 ) with her arms extended out. She brings her arms in . i . After she brings her arms in , for the system of just the skater, her angular momentum is: not possible to determine without more information. the same as when her arms were extended out. smaller than when her arms

What is the relation among force F F , force arm r r and torque ,

if an electronic oscillator produces a sound of wavelength 0 . 6 0 meters, what will be the wavelength produced when that oscillator

Over the course of a day ( twenty - four hours ) , what is the angular displacement of the second hand of a wrist watch in radians? a ) 1 4 4 0 rad b ) 2 8 8 0 rad c ) 4 5 2 0 rad d ) 9 0 5 0 rad e ) 5 4 3 0 0 0 rad

A uniform pressure of 7 . 0 \ times 1 0 ^ ( 5 ) ( N ) / ( m ^ ( 2 ) ) B = 1 4 \ times 1 0 ^ ( 1 0 ) ( N ) / ( m ^ ( 2 ) )
A uniform pressure of 7 . 0 \ times 1 0 ^ ( 5 ) (

What type of waves are sound waves? Select one: a . Transverse waves b . Longitudinal waves c . Mechanical waves

A concert loudspeaker suspended high off the ground emits 2 7 . 0 WW of sound power. A small microphone with a 0 . 7 0 0 cm 2 cm 2 area is 5 2 . 0 mm from the speaker. Part A What is the sound intensity at the position of the microphone? Express your answer with the appropriate units. View Available Hint ( s ) for Part A Activate to select the

The coordinates of a point on a rectangular coordinate system are ( 5 . 0 0 , y ) . The polar coordinates of the same point are ( r , 4 3 . 0 \ deg ) . What are the values of r and y ?

one kind of e - book display... whats the maximun possible torque on a sphere if the electric field between the transparent plates is 5 x 1 0 ^ 5 N ? C

A solenoid, wound as shown, is placed next to an unmagnetized piece of iron. Does face F of the iron become a north pole or a south pole due to the induced dipole moment in the iron? Neither North pole South pole
A solenoid, wound as shown, is placed next to an

Choose the correct statement regarding energy production in the interior of a star and energy production in a power plant. A nuclear power plant uses fusion as an energy source by breaking apart atohts. A star uses fusion as an energy source by breaking apart atoms. A nuclear power plant uses fusion as an energy source by building larger atoms
Choose the correct statement regarding energy

What is the focal length of a plano - convex lens with an index of refraction of 1 . 6 and a radius of curvature of the convex side of . 4 m ?
What is the focal length of a plano - convex lens

A copper wire of cross - sectional area 2 . 6 0 1 0 - 6 m 2 and length 3 . 0 0 m has a current of 2 . 4 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 4 0 . 0 min?

A sphere of radius R possesses a charge q distributed uniformly over its surface. Its center lies at a distance d > Rfrom a flat conducting sheet that is infinitely big. In particular, the conducting sheet is located at z = 0 andthecenterof thespherehas coordinates x = 0 = y and z = d

A 4 7 . 9 mH inductor has a reactance of 1 7 9 kOhms. ( a ) What is its operating frequency? ( b ) what is the capacitance of a capacitor with the same reactance at that frequency? If the frequency is doubled, what is the new reactance of ( c ) the inductor and ( d ) the capacitor?

After Select all that are True. Her rotational kinetic energy decreases. Her moment of inertia remains the same. Her rotational kinetic energy increases. Her moment of inertia decreases. Her rotational kinetic energy remains the same. Her moment of inertia increases. she brings her arms in , her angular speed is: larger than 0 0 . not possible to

A circular coil has a 1 0 . 8 cm radius and consists of 3 8 . 0 closely wound turns of wire. An externally produced magnetic eld of magnitude 2 . 8 9 mT is perpendicular to the coil. ( a ) If no current is in the coil, what magnetic ux links its turns? ( b ) When the current in the coil is 4 . 0 6 A in a certain direction, the net ux through the

Replace the 1 0 resistor with the photoresistor. Put it under a bright light and watch the ammeter. Put your finger over the end so that no light enters, then take your finger off to see what happens. Based on what you have observed, does the photoresistor have more or less resistance than the 1 0 resistor? Explain how you know that.

Q 4 . Multiple Choice Questions: 1 . How much inductance is needed to resonate at 1 5 k hz with a capacitance of 1 0 nF . a . 1 . 2 mH b , 1 1 . 2 mH c . 2 2 . 4 mH d . 1 1 . 2 H
Q 4 . Multiple Choice Questions: 1 . How much

North American outlets supply AC electricity with a frequency of f = 6 0 . 0 Hz while the European standard is f = 5 0 . 0 Hz . What value of capacitance provides a capacitive reactance of 1 . 8 4 k in North America and in Europe? ( Enter your answers in F . ) HINT ( a ) North America F ( b ) Europe F

A spring - loaded gun fires a 5 kg projectile with an initial speed of 2 0 m / s at an angle of 6 0 above the horizontal. What is the kinetic energy of the projectile at the highest point of its trajectory? ( A ) 2 5 0 J ( B ) 1 5 0 J ( C ) 1 0 0 J ( D ) 5 0 J ( E ) 0 J

What is the wavelength in nn of the photon emitted in the n = 3 to b = 2 transition in C 5 + ?

A 9 7 . 0 - kg person stands on a scale in an elevator. What is the apparent weight in each of the following situations? ( a ) when the elevator is accelerating upward with an acceleration of 1 . 6 0 m / s 2 N ( b ) when the elevator is moving upward at a constant speed N ( c ) when the elevator is accelerating downward with an acceleration of 1 .

If a human cochlea's basilar membrane vibrates maximally at a point equally distant between its apex and base, what frequency is most likely to be subjectively experienced by that listener? Approximately 2 0 , 0 0 0 Hz . Approximately 1 0 , 0 0 0 Hz . Approximately 8 0 dB . Approximately 2 0 0 Hz . Approximately 2 0 dB .

When the water height hh has the value 3 . 5 0 mm , the absolute pressure pp of the compressed air is 4 . 2 0 1 0 5 Pa 4 . 2 0 1 0 5 Pa . Assume that the air above the water expands at constant temperature, and take the atmospheric pressure to be 1 . 0 0 1 0 5 Pa 1 . 0 0 1 0 5 Pa . Calculate the speed of flow for h = 2 . 1 0 mm .

Two speakers placed 0 . 9 4 m apart produced pure tones In sync with each other at a frequency of 1 0 8 5 Hz . A microphone can be moved along a line parallel to the line joining the speakers and 8 . 4 m from it . An intensity maximum is measured a point P 0 where the microphone is equidistant from the two speakers. As we move the microphone away

The observations that show that the expansion of the universe is speeding up tell us the universe must contain dark energy. gravity. cosmic microwave background radiation. dark matter. black holes.
The observations that show that the expansion of

Q 1 ( 1 0 pts ) : The angular frequency of an oscillator always looks like a ratio of "something" over "something else". What is this conceptual pattern you can use to quickly get the angular frequency of a system? \ omega ^ ( 2 ) = Q 2 ( 1 0 pts ) : If you ever need to compute torques for an object that is accelerating, you should always compute
Q 1 ( 1 0 pts ) : The angular frequency of an

* P 2 A A D - shaped frame is made out of plastic of small square cross section and tightly wrapped uniformly with N turns of wire as shown in Figure 2 1 . 7 5 , so that the magnetic field has essentially the same magnitude throughout the plastic. ( R is much bigger than w . ) With a current I flowing, what is the magnetic field inside the
* P 2 A A D - shaped frame is made out of plastic

A cruise ship with a mass of 1 . 1 3 1 0 7 k g strikes a pier at a speed of 0 . 7 5 2 m s . It comes to rest 5 . 6 9 m later, damaging the ship, the pier, and the tugboat captain's finances. Calculate the average force ( in N ) exerted on the pier using the concept of impulse. ( Hint: First calculate the time it took to bring the ship to rest.
A cruise ship with a mass of 1 . 1 3 1 0 7 k g

The capacitor C = 8 0 F is initially charged by the battery of 8 0 V and disconnected. Then it is connected across the inductance of 1 0 0 mH . For the LC circuit find maximum current on the inductor ( in Amperes ) . 3 . 2 0 . 5 2 . 2 6 1 . 5 3
The capacitor C = 8 0 F is initially charged by

What is the intensity carried by an electromagnetic plane wave of amplitude E 0 traveling in air ( which is similar to free space ) ? As we saw ( pset 2 ) , for strong electric field, air breakdown can happen ( air becomes conductor leading to arcs ) .

When a magnet is quickly pushed into a coil of wire connected to a circuit _ _ _ _ _ _ _ _ _ . work is needed to overcome a resistance to the pushthe magnet is drawn farther into the coilthere is no resistance to the pushresistance via Ohm's law is experienced Submit

If beam intensity decreases from 1 0 m W c m 2 to a level of 2 . 5 m W c m 2 , the output power was adjusted by
If beam intensity decreases from 1 0 m W c m 2 to

What is 9 times 5

Calculate the heat required to convert a 1 . 7 kg block of ice, brought in from an outside temperature of - 1 5 degrees Celcius, to steam at 1 0 2 . 5 degrees Celcius in the sauna.

Which statement is false? A solid cylinder and a solid sphere have equal masses and roll without slipping on a horizontal surface. If their kinetic energies are the same, then the translational speed of the cylinder is equal to that of the sphere. If a coin and a ring have equal masses and start from rest at the same time and roll down an incline
Which statement is false? A solid cylinder and a

1 ) A voltage V = 0 . 8 5 sin 7 5 4 t is applied to an LRC circuit ( I is in amperes, t is in seconds, V is in volts, and the angle is in radians ) which has L = 1 8 . 6 mH , R = 2 5 . 2 k , and C = 0 . 4 8 C . ( a ) What are the impedance and phase angle? ( b ) How much power is dissipated in the circuit? ( c ) What is the rms current and voltage

A spaceship is traveling in space just outside the earth. It emits a light signal of frequency f = 6 3 0 GHz . On earth, telescopes detect this as light of frequency f ' = 6 3 9 GHz

what factors does the magnetic field inside an ideal solenoid depend on

For alpha decay the proton number changes as you go from the parent to the daughter nucleus.A . Increase by 1 B . Decrease by 1 C . Decrease by 2 D . Increase by 2 E . No change

If you want get to Mars [ U ] ( d = 5 X 1 0 7 km ) in four days, how fast do you have to be accelerating? Assume you turn around and slow down at the midway point. What is your speed at that midway point?

1 . 3 . ( 5 pts ) Consider two vectors, having magnitudes of 2 0 and 5 0 , which are added together. Encircle the letter of any one of the following if it is a possible answer for the magnitude of the resultant and briefly explain in words your choice ( s ) . A ) 1 0 B ) 2 0 C ) 4 0 ( D ) 8 0
1 . 3 . ( 5 pts ) Consider two vectors, having

8 . Consider three pendulums. The pendulum arms are all the same length. The masses attached to the pendulums are m 1 = 1 kg , m 2 = m 3 = 0 . 5 kg , and their maximum angular displacements are 1 = 2 = 0 . 4 rad and 3 = 0 . 2 rad. Rank the speeds of these three pendulums as they pass through their equilibrium position. A . v 2 = v 3 < v 1 B . v 3

Blood is thinner than water and is less viscous than water. True or False

Red light lamda = 6 6 0 nm , what is the f , the w and the k ?

a drawbridge is an entrance to a castle that serves as a door when raised, but as a bridge when lowered. To raise the drawbridge faster, you should a ) decrease the torque you apply b ) attach the ropes closer to the center c ) make the angle between the ropes and bridge smaller than it is now d ) decrease the moment of inertia of the bridge e )

1 . Piston 1 in the figure below has a diameter of 0 . 3 1 in . ; Piston 2 has a diameter of 1 . 7 in . In the absence of friction, determine the force necessary to support the 5 0 0 lb weight. If the maximum stress of the bridge, described above, can withstand without crumbling is 2 . 0 1 0 7 Pa , will it crumble because of this temperature

IW - 2 The earths magnetic field strength is about 0 . 5 0 0 G

When a current of 2 . 1 A flows in the 1 0 9 turn primary of an ideal transformer this causes a 1 5 A to flow in the secondary . How many turns are in the secondary

A 7 0 kg skier starts at rest and begins skiing down a 5 0 0 m long, 1 5 - degree slope with a coefficient of friction ( mu s = 0 . 1 ) 5 . What is the skiers acceleration?

Look back at problem FE - II - 2 - 1 , the symbolization used in FE - II - 1 , and pick the best option below: This is not a valid argument so we can't use it in science. This is a valid argument formally speaking but we can't use it in science This is a valid argument and can be used in science to falsify, based on the lack of observation of

If you're wearing polarizing sunglasses and want to see who else is wearing polarizing sunglasses, you only have to turn your head sideways and look to see which people now have sunglasses that appear completely opaque. Why does this test work? Group of answer choices The light coming from the region around their eyes must pass through their

A wheel with radius 2 4 cm is rotating at a rate of 1 7 rev / s . What is the angular speed in radians per second? If the wheel rolls along the ground without slipping, the instantaneous velocity of the atoms

A metal body with a mass 6 . 5 0 kg is connected to a spring with a force constant of 2 0 0 N / m , and it oscillates horizontally with an amplitude of 4 . 9 5 cm . ( a ) What is the total mechanical energy ( in J ) of the body spring system? J ( b ) What is the maximum speed ( in m / s ) of the oscillating body? How is the maximum speed related

The temperature at the inner radius ( r 1 = 5 cm ) is 1 2 5 C and at the outer radius ( r 2 = 1 0 cm ) is 6 0 C in a spherical shell. Calculate the rate of heat flow through, the shell if k of the shell material is 2 W / mK . What would be the temperature of the shell material at a radius of 7 . 5 cm ?

A 1 2 . 4 kg platinum mass rests on the bottom of a pool. ( The density of platinum is 2 1 . 4 1 0 3 kg / m 3 and the density of water is 1 . 0 0 1 0 3 kg / m 3 . ) HINT ( a ) What is the volume of the platinum ( in m 3 ) ? m 3 ( b ) What buoyant force acts on the platinum ( in N ) ? ( Enter the magnitude. ) N ( c ) Find the platinum's weight ( in

What is the cutoff ( threshold ) frequency for a metal surface that has a work function of 5 . 4 2 eV ? 1 . 3 1 1 0 1 5 H z 6 . 0 4 1 0 1 5 H z 3 . 0 1 1 0 1 5 H z 2 . 0 1 1 0 1 5 H z
What is the cutoff ( threshold ) frequency for a

A 4 . 5 kg puffer fish expands to 4 0 % of its mass by taking in water. When the puffer fish isthreatened, it releases the water toward the threat to move quickly forward. What is the ratio ofthe speed of the puffer fish forward to the speed of the expelled water backwards?Solution 2 : 5 Explain wh

( 3 pts ) A strong wind starts blowing horizontally to the right against a 1 0 0 - k g box with a force of 4 0 0 N which induces a frictional force pointed in the leftward direction. The box is originally at rest. The coefficients of friction are s = 0 . 8 and k = 0 . 5 . Which of the following statements are true?
( 3 pts ) A strong wind starts blowing

The position of a particle is r ( t ) = 4 . 0 t ( a ) What is the velocity of the particle at 0 s and at s ? ( b ) What is the average velocity between 0 s and s ?

A mass attached to a spring, which in turn is attached to a wall, is free to move on a friction - free horizontal surface. Suppose the mass is haliway between one of the extreme points of its motion and the center point. What forms of energy does the mass have at this position? Multiple Choice all potential a mix between potential and kinetic all
A mass attached to a spring, which in turn is

The shorter the wavelength of the soundwaves, the q , of the sound. higher the pitch lower the pitch greater the volume lower the volume not here
The shorter the wavelength of the soundwaves, the

using an intensity of 1 x 1 0 ^ - 1 2 W / m ^ 2 as a reference, the threshold of hearing for an average young person is 0 dB . Person 1 and person 2 , who are not average have thresholds of hearing that are B 1 = - 8 . 0 0 dB and B 2 = + 1 2 . 0 dB . What is the ratio I 1 / I 2 of the sound intensity I 1 when person 1 hears the sound at his own

At the instant when the current in an inductor is increasing at a rate of 6 . 4 5 1 0 2 A / sA / s , the magnitude of the self - induced emf is 1 . 6 0 1 0 2 VV . What is the inductance of the inductor? If the inductor is a solenoid with 4 0 0 turns, what is the average magnetic flux through each turn when the current is 0 . 7 2 0 AA ?

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. Rank the magnitude of the horizontal forces on blocks A and B . F p a p > F f a b > F f o a > F f b d e s k F p a p > F f a b = F f o a b > F f b d e s k Need information about the
A student pushes two blocks across a desk,

When launched at an angle of 6 4 above the horizontal, the maximum height reached by a projectile is 2 3 m above the launching point. Find the launching speed of the projectile.

Part B At the instant when the point charge is at the origin, what is the magnetic - field vector it produces at point x = 0 , y = 0 . 5 0 0 m , z = 0 . Enter your answers in teslas separated by commas.
Part B At the instant when the point charge is at

consider incoming light with intensity I 0 incident on a polarizer. how much light I 1 is transmitted in therms of I 0 ? if a second polarizer is at an angle O 1 relative to the first, how much light is I 2 is transmitted in terms of I 0 ?

A magnifying glass with focal length 1 5 centimeters is placed 1 2 centimeters above a stamp.

In shallow water of depth d the speed of waves is approximately v = 2 gd . Find ( a ) the speed and ( b ) the period of a wave with a wavelength of 2 . 6 cm in water that is 0 . 7 5 cm deep.

A DVD is initially at rest. How do the centripetal acceleration a rad and tangential acceleration a tan compare at points A and B ? A and B have the same a rad, but B has a greater a tan than A , none of the answers are correct, B has a greater a rad and a greater a tan than A , A and B have the same a rad and a tan , B has a smaller a rad and a

If an airplane travel at a speed of 1 1 2 0 km / hr at an altitude follow 1 5 km

( a ) If 0 is 3 2 , and the magnitude of the acceleration is 2 x 1 0 1 7 m / s ^ 2 , what is the magnitude of a ? i m / s ^ 2 ( b ) What is the magnitude of the radiative electric field at the indicated observation location, if the magnitude of is 0 . 0 2 5 m ?

If you attempt to carefully measure the current position of a single electron, what will happen? A . You become less able to predict the electron's future position. B . You become more able to predict the electron's momentum. C . You become less able to predict the electron's mass. D . You become more able to predict the electron's charge. E . You

A 2 9 . 2 kg beam is attached to a wall with a hinge and its far end is supported by a cable. The angle between the beam and the cable is 9 0 o . If the beam is inclined at an angle of = 1 5 . 3 with respect to horizontal.

A snowplow is moving at a constant speed of 2 m / s , and the snow it is pushing is accumulating at a rate of 1 7 0 kg / s . What extra force is necessary for the engine of the snowplow to maintain constant speed despite the increasing mass?

A horizontal spring with spring constant 2 9 0 N / mN / m is compressed by 1 5 cmcm and then used to launch a 2 0 0 gg box across the floor. The coefficient of kinetic friction between the box and the floor is 0 . 2 3 .

In a Compton scattering experiment, an x - ray photon scatters through an angle of 1 1 . 0 from a free electron that is initially at rest. The electron recoils with a speed of 2 , 2 8 0 km / s . ( a ) Calculate the wavelength of the incident photon. Your response differs from the correct answer by more than 1 0 % . Double check your calculations.

a cylindrical container is filled with 4 0 cm of water ( density of 1 , 0 0 0 kg / m cubed ) and then a 3 5 cm of ethyl alcohol ( density of 8 0 6 kg / m cubed ) and then 5 0 more centimeters of oil ( density of 7 0 0 kg / m cubed ) air pressure is 1 . 0 1 x 1 0 to the 5 th N / m squared. What's the pressure at the bottom of the container? Draw a

A force of 3 5 . 0 N is applied in the positive x - direction to a block of mass 8 . 9 0 kg , at rest on a frictionless surface. ( a ) What is the block's acceleration ( in m / s ^ 2 ) ? ( Indicate the direction with the sign of your answer. ) m / s 2 ( b ) How fast is it going ( in m / s ) after 5 . 5 0 s ? m / s

( I ) Approximately what magnitude forec, F S H , must the extensor muscle in the upper arm exert on the lower arm to hold a 7 . 3 - k g shot put ( Fig . 1 2 - 4 6 ) ? Assume the lower arm has a mass of 2 . 3 kg and its Co is 1 2 . 0 cm from the ellow - joint pives. FIGURE 1 2 - 4 6 Problem 2 . 1 6 . ( II ) ( a ) Calculate the magnitude of the
( I ) Approximately what magnitude forec, F S H ,

Question 3 ( 1 point ) Listen A hypnotist uses a pocket watch as a simple pendulum. He gives it an initial velocity of 4 . 4 m s , the string has a length of 2 0 cm , and the watch has a mass of 1 0 0 g . What is the angular frequency of the watch? Your Answer: Answer units
Question 3 ( 1 point ) Listen A hypnotist uses a

A 0 . 2 1 kg mass at the end of a spring oscillates 2 . 9 times per second with an amplitude of 0 . 1 5 m . Determine the speed when it passes the equilibrium point. Determine the speed when it is 0 . 1 2 m from equilibrium. Determine total energy of the system. Determine the equation describing the motion of the mass, assuming that at t = 0 , x

1 . 3 5 Find the magnitude and angle of vec ( R ) if vec ( R ) = 7 . 0 i - 1 2 j . Ans.: ( choose an option ) A : = 1 4 Nat - 6 0 B : = 1 0 Nat 3 0 C : = 4 1 Nat - 6 0 D : = 1 9 Nat - 6 0
1 . 3 5 Find the magnitude and angle of vec ( R )

When electrons are diffracted through a double slit, do they hit the screen in a wavelike way or in a particle - like way? Is the pattern of hits wavelike or particle - like? Particle - like, particle - likeWavelike, particle - likeParticle - like, wavelikeWavelike, wavelike

The following circuit consists of a 1 0 V battery, three capacitors C 1 = 2 F , C 2 = C 3 = 1 F , and a switch. When the switch is open the charge on the capacitor C 1 is 1 0 C and on C 2 is 5 C . If now the switch is closed the new charges on the capacitors C 1 will and C 2 be: ( a ) 1 0 C and 5 C ( b ) ( c ) ( d ) 1 0 C and 1 0 C 2 0 C and 1 0 C

An ideal massless spring with a spring constant of 2 . 0 0 N m is attached to an object of 7 5 . 0 g . The system has a small amount of damping. If the amplitude of the oscillations decreases from 1 0 . 0 0 mm to 5 . 0 0 mm in 1 5 . 0 s , what is the magnitude of the damping constant b ? 0 . 0 4 6 2 k g s 0 . 0 0 8 5 7 k g s 0 . 0 0 6 9 3 k g s 0
An ideal massless spring with a spring constant

How much energy is carried by a photon of wavelength 6 6 0 nm ? 1 . 4 6 1 0 - 4 8 J 3 . 0 1 1 0 - 1 9 J 6 . 6 3 1 0 - 3 4 J 4 . 7 8 1 0 - 1 9 e V 5 . 3 9 eV
How much energy is carried by a photon of

Questions 9 - 1 0 A block of mass m is tied to a string of negligible mass that is wrapped around a uniform cylinder of mass M and radius R 0 . The cylinder is free to rotate with negligible friction about a fixed axis through its center. After the block has dropped a vertical distance h from rest; ( Moment of inertia of cylinder about center of
Questions 9 - 1 0 A block of mass m is tied to a

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