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An iron vat is 17 meter long at room temperature (20°C). Determine how much longer is it when it contains boiling water at 1 atm pressure?
A fisherman reels in 16.0 m of linewhile pulling in a fish that exerts a constant resisting force of20.0 N. how much work is done on it by the tension in the line
A particle moves with constant velocity [4, -2, 1] m/s. If its mass is 3 kg, what is its kinetic energy? One of the forces acting on it is given by F = [-1, 2, 2] N. Find the work done by this force on the particle as it moves a distance of 3 m.
At the start of a trip, a driver adjusts the absolute pressurein her tires to be 2.83 x 105 Pa when the outdoor temperature is284 K. find the air temperature inside the tires at the end of the trip
A converging lens has 31.3 cm focal length, and is placed 20.9 cm behind a diverging lens. Parallel light strikes the diverging lens, What is the focal length of the diverging lens in cm
A ring is fitted loosely (with no friction) around a long, smooth rod of length L = 0.901 m. Determine the radial velocity of the ring as it reaches the moving end of the rod
A train with a maximum speed of 60 mph travels between two stations 10,000 ft apart. It has an acceleration rate of 4.00 ft/s2 and requires a distance of 1500 ft. to stop from 60 mph. Sketch (a) acceleration-time, (b) velocity-time, (c) displacement-..
A projectile is fired at 67.5 o above the horizontal. Its initial speed is equal to 90.0 m/s. evaluate the maximum height reached by the projectile
Calculate the electric field(magnitude and direction) at the center of a square 52.5 on a side if one corner is occupied by a - 38.8 charge
the average relative intensity of a persons voice is 58 db. a microphone and amplification system increases the
A rubber ball with a mass of 0.135 kg is dropped from rest. From what height was the ball dropped
How many protons hit the target. How much energy is delivered to the target each second if the protons each have a kinetic energy of 30 MeV and lose all of their energy in the target.
A bullet of mass m = 28 g is fired into a wooden block of mass M = 4.1 kg as shown in the figure below. The block is attached to a string of length 1.5 m. what was the initial speed of the bullet
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