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a 02 kg ball is suspended from the ceiling with a massless string l23m when released from rest the ball swings downward
nate the skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding in
a woman is 18 m tall and has a mass of 61 kg she moves past an observer with the direction of the motion parallel to
1 suppose you weigh 587 n and when you stand on one foot your weight is spread out over an area of 1510times10-2 m2
a 310-kg child on a 100-m-long swing is released from rest when the ropes of the swing make an angle of 300deg with the
a charged isolated metal sphere of diameter 13 cm has a potential of 9800 v relative to v 0 at infinity calculate the
unpolarized light of intensity io passes through a polaroid with its transmission axis vertically oriented what
a particle in a central force field has the orbit rcphi2 where c is a constanta find the potential energyb find the
a plane electromagnetic wave is traveling along the x-axis if the electric field of the wave has a maximum value of 2 x
using the liquid drop model plot on the same graph as a function of a in units of mevnucleon a the bulk or volume
a carnot engine with a hot-reservoir temperature of 500 degrees c has a thermal efficiency of 263 what is the
a refrigerator requires 10 j of work and exhausts 70 j of heat per cycle what is the refrigerators coefficient of
from the difference in mass of a hydrogen atom appendix b to the mass of a proton and an electron table 15 estimate the
500 j of energy are transferred to a system in the form of heat while the thermal energy increases by 100 j how much
a copper block is removed from a 310 c oven and dropped into 110 kg of water at 205 c the water quickly reaches 259 c
70times103mol of gas undergoes the process shown in the figure what is the initial temperature what is the final
a cylinder contains 31 l of oxygen at 310 k and 25 atm the gas is heated causing a piston in the cylinder to move
using the liquid drop model tabulate the nuclear binding energy and the various contributions to the binding energy for
a demonstration gyroscope consists of a uniform disk with a 41-cm radius mounted at the midpoint of a light 58-cm axle
a flat slab of styrofoam with a density of 32 kgm3 floats on a lake what minimum volume must the slab have so that a
a rectangular trough 16 m long 060 m wide and 050 m deep is completely full of water one end of the trough has a small
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the sun transfers energy to the earth by radiation at a rate of approximately 100kw per square meter of surface if this
between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage typically this disc has a radius
an airplane undergoes the following displacements first it flies 71 km in a direction 30deg east of north next it flies