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A spring with spring constant 250 N/m is compressed by 0.13 m and then used to propel a 0.035-kg ball directly upward. If needed, use g = 10 m/s2. Neglecting air resistance, what is the height of the ball at it's peak?
How much current flows throughout the television.
An old-style TV set places 25 kV across two plates of a parallel plate capacitor. An electron is released very close to one plate, compute the speed of the electron when it exits the hole
A 1460-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16300 N on the submarine, What is the submarine's acceleration
a helium tank holds 0.62m^3 of heliumat a pressure of 910 kPa. What volume would the helium occupy
The water passing over Victoria Falls, located along the Zambezi River on the border of Zimbabwe and Zambia, How much internal energy is produced per kg as a result of the fall
A train has a rest length of 100 m. Traveling at a very high velocity, it goes through a tunnel of length 60 m. What is the velocity of the train expressed in units of c
2000 kg elevator is accelerated uniformly from rest to 4 m/s in a time of 90s. find the change in mechanical energy of the elevator
A 1.1 µF capacitor has an electric field of 1.2x105 V/m between two metal plates 1 mm apart. What is the energy stored on the capacitor
A helium-neon laser of = 633 illuminates a diffraction grating. The distance between the two m= 1 bright fringes is 36.0 cm on a screen 2.40 m behind the grating. What is the spacing between slits of the grating
An elephant's legs have a reasonably uniform cross section from top to bottom, and they are quite long, An elephant has legs that stretch 2.3 m from its shoulders to the ground. How much time is required for one leg to swing forward after completin..
q1. an elevator cab in the new york marriott marquis has a mass of 4.43 x 103 kg and can carry a maximum load of 1.80 x
Work of 1500 J is done on an ideal gas, but the internal energy increases by only 800 J. What is the amount and direction of heat flow into or out of the system
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