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A hydraulic lift has pistons with areas 0.40m2 and 5.95m2 , and they're at the same height. With a 2.5 kN force on the smaller piston, how much mass can the larger piston support?
What is the potential energy of this group of charges. The coefficient of kinetic friction between the crate and the floor is 0.25. Find the acceleration of crate.
After solving a difficult physics problem, an excited student throws his book straight up. It leaves his hand at 3.7 m/s from 1.5 m above the ground. How much time does it take until the book hits the floor?
Assuming the truck continues at constant speed from this minimum distance, for how long must the light remain yellow for the truck to completely clear the intersection before the light turns red.
Find out the normal force for a laundry basket
Assume that the net horizontal force is due to rolling friction only and take free-fall acceleration to be = 9.80 .What is the coefficient of rolling friction for the tire under low pressure.
a long horizontal wire carries a current of 48 amps. A second wire, made of 2.5 mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15 cm below. Determine the magnitude and direction of the current in the lower wi..
Two uniform, solid disks are rotating freely about the same axis. Then they are linked together without the aid of any external influences. Before being connected.
The frequency of sound waves in air from a violin string are around 570 Hz. what is the wavelength of the sound waves
13 cars in a circle at a boom box competition produce a 110 dB sound level at the center of the circle. What is the average sound level produced there by each
A jet lands at 54.4 m/s, the pilot applying the brakes 2.45 s after landing. Find the acceleration needed to stop the jet within 5.17 x 10^2 m after touchdown.
The experiment you did in lab is repeated, using a uniform metal bar that is 80.0 cm long instead of the meterstick. Since the bar is uniform, What is the mass of the bar?
What focal length does the lens need. how many meters will the car have moved before it begins to slow down.
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