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the first car has twice the mass of a second car but only half as much kinetic energy when both cars increase their
the angular position of a pendulum is represented by the equation 00330 cos t where is in radians and 453 rads
a particle is located at the vector position rarrowbold 900i hat bold 1000j hat bold m and a force exerted on it is
calculate the change in potential energy of a 864 kg man when he takes an elevator from the first floor to 35th floor
the ground-state energy of an electron confined along the x-axis is 692times10-18 j what is the approximate length of
suppose that 14 moles of an ideal diatomic gas has a temperature of 1273 k and that each molecule has a mass 232 times
a person is pushing a wheelbarrow along a ramp that makes an angle of 34 degrees with the horizontal the wheelbarrow
a 24-m3 tank is filled with 1760 moles of an ideal gas the temperature of the gas is initially 296 k but it is raised
a beam used in construction is made of steel which has a coefficient of linear expansion of 13 times 10-5 k-1 the beam
if you twirl a small 70-g wooden ball in a circle at 40 revolutions per second on a light 10-cm string approximately
a simple camera telephoto lens consists of two lenses the objective lens has a focal length f1 440 cm precisely 410 cm
a tank holds 182 moles of argon gas atomic mass 6633521 times 10-26 kg at a pressure of 101300 pa and a temperature of
a cylinder with a movable piston contains 121 moles of a monatomic ideal gas at a pressure of 15 times 105 pa the gas
when a patient is being fitted with contact lenses the curvature of the patients cornea is measured with an instrument
a 85-kg sprinter accelerates from rest to a speed of 100 ms in a 50 sa calculate the mechanical work done by the
a tennis player swings her 1000g racket with a speed of 10ms she hits a 60g tennis ball that was approaching her at a
a converging lens of focal length 8000 cm is 203 cm to the left of a diverging lens of focal length -600 cm a coin is
a 600nm laser hits glass with an incident angle of 30deg if the glass has and index of refraction of 17 findthe angle
to stretch a certain spring by 290cm from its equilibrium position requires 750j of work what is the force constant of
waves on a 10 meter rope travel at 20 ms you shake the rope back and forth until you get a standing wave with a single
suppose a star with radius 861 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiationa find
two cylinders each contain 020mol of a diatomic gas at 340k and a pressure of 30 atm cylinder a expands isothermally
a rope with 300 g of mass per meter is under 580 n tension a wave with frequency 31 hz and amplitude 65 cm is
if you take data in paris of x and y related by the equation 5x cy47 what would you graph to linearize the data