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You stand on a long flatbed railroad car which you estimate weighs about 4 times your own weight. Initially, the car rolls straight along the ground at 20 m/s, with negligible friction. You then begin to run across the top of the car opposite its own direction of motion relative to the ground. You estimate that your speed is about 5 m relative to the car. What is the resulting increase in the speed of the car?
Find the ranges of this light's frequency. min? max? in Hz, Find the ranges of this light's wave number. min? max? in rad/m
mixing water 1. 460 cm3 of water at 83degc is mixed with 115 cm3 of water at 8degc. calculate the final equilibrium
determine the velocity of a canoe relative to the shore of a river if the velocity of the canoe relative to the water
Two narrow slits are illuminated by monochromatic light. and an interference pattern is observed on a wall. The wall is 6.00m from the slits, the slit separation is 2.00 x 10^-5m and the wavelength is 625nm. Determine the distance between the m=0 and..
A parallel-plate capacitor is charged to a potential difference of 12 V. The area on each plate is 20 cm2 and the spacing between plates is 0.15 mm.
A ranger in a national park is driving at 32.0 mi/h when a deer jumps into the road 200 ft ahead of the vehicle. What is the maximum reaction time allowed
two equal-volume compartments of a box are joined by a thin wall as shown in the figure. the left compartment is filled
A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4 m down a q = 28° incline. The sphere has a mass M = 5.2 kg and a radius R = 0.28 m. What is the magnitude of the frictional force on the sphere?
a mass attached to a spring oscillates according to the equation xt 24sin16t 0.50 where x is in cm and t in seconds.
A single slit is illuminated with monochromatic light, and a screen is placed behind the slit to observe the diffraction pattern. what would be the width of the central maximum
Two charged particles are located on the x axis. The first is a charge +Q at x = -a. The second is an unknown charge located at x = +3a, What are the two possible values of the unknown charge
A piano wire with mass 3.45 g and length 77.0 cm is stretched with a tension of 33.0 N . A wave with frequency 100 Hz and amplitude 1.70 mm travels along the wire. Calculate the average power carried by the wave. What happens to the average power if ..
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