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A computer disk drive is turned on starting from rest and has constant angular acceleration.
A) If it took 0.840s for the drive to make its second complete revolution, how long did it take to make the first complete revolution?B) What is its angular acceleration, in rad/s^2?
A 1.00 kg block Is resting against a light, compressed spring at the bottom of a rough plane inclined at an angle of 30 degrees. Kinetic friction between box and plane is 0.100. Suppose the spring is compressed 10 cm from its equilibrium length.
A particle of mass 0.350 kg is attached to the 100-cm mark of a meterstick of mass 0.125 kg. Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 50.0-cm mark
A 16 cm x 16 cm square loop of wire lies in the xy-plane with its bottom edge on x-axis. The resistance of the loop is 0.490 ohms. A magnetic field parallel to the z-axis is given by B= 0.830 y^2 t, where B is in tesla, y in meters, and t in seconds...
A 5,100-kg truck runs into the rear of a 1,000-kg car that was stationary. What was the speed of the truck before the collision
A water pump lifts water from a well depth of 30 to the ground level. How much work does the pump do by moving 2 m^3 of water
You throw a ball straight down from an apartment balcony to the ground below. find the height of the balcony
A listener is standing in front of two speakers that are producing sound of the same frequency and amplitude, except that they are vibrating out of phase, find the frequency of the sound coming from the speakers
A transverse wave is travelling in a denser medium is incident on a rarer medium. How the phase of the wave is affected
You're driving along a rural highway in a light rain at 62 mph (28 m/s). Just after rounding a bend, you see a 30-mph (13 m/s) speed zone ahead, with a police car parked just beyond the sign.
A small plane tows a glider at constant speed and altitude. If the plane does 2.09 105 J of work to tow the glider 130m, what is the angle between the tow rope and the horizontal
A 1000 kg car carrying four 76 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with utmost amplitude when its speed is 18 km/h. The car now ..
The frequency of a steam train whistle as it approaches you is 538Hz. After it passes you, its frequency is 486Hz. How fast was the train moving
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