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A penny is made of Copper-coated Zinc can a calorimetric experiment be devised to test for the metal content in collection of pennies? If so explain the procedure.
A 2.0 kg mass is connected to a spring with a spring constant of 9.0 N/m. What is the period of this simple harmonic motion
q1. a ski jumper has 1.2 acute 10 j of potential energy at the top of the ski jump. the friction on the jump slope is
A rectangular block of ice 14.0 m on each side and 1.4 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3.
A free fall acceleration onthe surface Mars is about three eights of that on the surface of Earth. Find the ratio of there average densities
The average density of the planet Pluto is 2357 kg/m3. The acceleration of gravity on its surface is 0.76 m/s2. Calculate the average radius of Pluto
question a weather balloon is designed to expand to a maximum radius of17m at its working altitude where the air
A 600-eV electron and a 300-eV electron trapped in a uniform magnetic field move in circular paths in a plane perpendicular to the magnetic field. What is the ratio of the radii of their orbits
What is the net force on an object with a force of 0.99N at a 25 degree angle, force of 1.03N at a 195 degree angle
question a 1510 kg car moving south at 11.1 ms collides with a 2570 kg car moving north. the cars stick together and
An elevator is able to raise 9,800 N to a height of 37 m in 12 s, What is the elevator's power output and How much work does the elevator do
If you apply a force of 1.0 Newton to a cart of mass 1.0 kilogram with negligible friction, find what do you expect the acceleration to be
A particle with a charge of -1.5uC and a mass of 2.5x10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 42 m/s. The only force acting on the particle is the electric force. (a) Which point is at..
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