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1. What must be true about individual elementary charges for your method of determining their values to be valid in the millikan oil drop experiment?
2. Why must a large number of values to be used to get a reliable answer? What error migh result if only a fre oil drops were used, or if all the oil drops contained an even number of chrages?
A 0.100-mA electron beam with kinetic energy of 54.0 eV enters asharply defined region of lower potential where thekinetic energy of the electrons is increased by 10.0 eV. What current is reflected at the boundary
The period of vibration of the system shown is observed to be 0.8 s. If block A is removed, the period is observed to be 0.7 s.
a 9.0 kg mess kit sliding on a frictionless surface explodes into two 4.5 kg parts one moving at 3.0 ms due north and
At a certain distance from the center of the Earth, a 5.0-{\rm kg} object has a weight of 3.5N. By what factor does its initial acceleration change
If they skid for 6.6 seconds before stopping, how far did they skid? Hint: Are the aircraft moving at a constant velocity after the collision or do they experience an acceleration?
at a grinding wheel has an angular velocity of 27.0 . it has a constant angular acceleration of 35.0 until a circuit
At a carnival, you can try to ring a bell by striking a target with a 9 kg hammer. How fast must the hammer be moving when it strikes the target so that the bell just barely rings
How many drops of water are in all the oceans on earth. Assume that 1cm^3 contains 25 drops of water.
A 1.05kg block is attached to a spring with spring constant 18N/m. What is the amplitude of the subsequent oscillations
At the instant the alpha particle leaves the nucleus, the centers of the two are 7.5 apart and essentially at rest. Find their speeds while they're a great distance apart. Treat each particle as a spherical charge distribution.
The surfer is catching a wave. Suppose she starts at the top of the wave with a speed of 1.5 m/s, how much work is done by the (nonconservative) force of the wave
Electrons are ejected from a metallic surface with speeds ranging up to 4.60 × 105 m/s when light with a wavelength of 625 nm is used. a)What is the work function of the surface? b) What is the cutoff frequency for this surface?
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