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A small ball rolls off the roof edge of a building with a horizontal speed of 2.3m/s. The ball hits the ground a distance of 15.8m from the building's base. Calculate the following: A) the height of the building and the velocity of the ball prior to impacting the ground
Two electrodes are placed in a calcium chloride solution and a potential difference is maintained between them. what is the current in the solution
Is it possible for both the pressure and volume of a monatomic ideal gas to change without causing the internal energy of the gas to change?
What is the value of h0? If the block were released from height 3h0 above the spring, Evaluate the maximum compression of the spring?
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is ? = 1.90 10-7 C/m2, and the plates are separated by a distance of 1.5 10-2 m. How fast is the electron moving just bef..
The E' is an unstable particle, with a mean lifetime on 2.5x10^-10s. What is the minimum uncertainty in this particles energy
In an X-ray scattering measurement the first order diffraction peak is observed at ? = 16.5°. What is the angle of the third order peak
The total mass of the gas is 12.48 g. What is molecular mass of the gas? the gas expands so that the cylinder has twice the height. How much work did the gas do assuming the pressure remained constant.
Charges Q1 = 6 x 18-8 C and Q2 = - 6 x 10^9 C are separated by 0.1m. What is the magnitude of the electric field midway between the two charges
35MW of power at 45kV (rms) arrives at a town from a generator via 5.0? transmission lines. Calculate the emf at the generator end of the lines
A 100 g cube of ice at 0 degrees C is dropped into 1.3 kg of water that was originally at 82 degrees C. find the final temperature of the water after after the ice melts
A 0.15-kg of aluminum contains 0.2 kg of water. Initially, the water and the cup have a com- mon temperature of 18 0C, find the specific heat capacity of the unknown material
A hydrulic jack in a mechanic's shop supports a car of mass M= 2.1 x 10^3 kg. What force must the pump exert on the fluid at the input to support the weight of the car
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