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A raindrop of mass 3.35 x 10^-5 kilogram falls vertically at stable speed under the influence of gravity and air resistance. Model the drop as a particle. As it falls 100 meter,
(a) Find the work done on the raindrop by the gravitational force and
(b) Find the work done on the raindrop by air resistance?
An organ pipe is shown to resonate at 240 Hz, 320 Hz, and 400 Hz. It does not resonate at any other frequencies between 240 Hz and 400 Hz, How long is the organ pipe
A 530kg cannon fires a 11kg cannonball with a speed of 200m/srelative to the muzzle, When the cannon fires, what is the speed of the cannonball relative to the earth
1. the windows in an office building are 4.26 m by 5.26 m. on a stormy day air is blowing at 53.0 ms past a window on
A 0.540-kg object attached to a spring with a force constant of 8.00 N/m vibrates in simple harmonic motion with an amplitude of 11.2 cm. Calculate the maximum value of its speed
q1. an infinite non conducting sheet has a surface charge density sigma 5.80 pcm2. a how much work is completed by
The current in a coil drops from 3.4 A to 2.8 A in 0.51 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
Freight trains can produce only relatively small acceleration and decelerations. What is the final velocity of a freight train that accelerates at a rate of 0.0700 m/s2 for 8.00 min, starting with an initial velocity of 5.00 m/s
A rectangular block of ice 7.00 m on each side and 1.80 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. How high does the top of the ice block float above the water level.
A 2.2 meter long pendulum is released from rest when the support string is at an angle of 26 degree with the vertical. Calculate the speed of the bob at the bottom of the swing
a pellet gun is fired straight downward from the edge of a cliff that is 12.2 m above the ground. the pellet strikes
A 0.60-kg block initially at rest on a frictionless horizontal surface is acted upon by force of 6.0 N for a distance of 9.0 m. How much kinetic energy does the block gain?------J
Imagine that we add 250 J of thermal energy to 1 liter (L)(1000cm^3) of air initially at room temperature and normal pressure. By how much does its pressure increase
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