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A pallet stacked with bags of cement weighing a total of 5501 N must be pushed up a 2.30-m incline to a 75.0-cm high platform. What force, in Newtons, must be applied to get the job done?
The maximum induced emf in a generator rotating at230 rpm is 40 V. How fast must the rotor of the generatorrotate if it is to generate a maximum induced emf of58 V?
For my project I constructed a trebuche. A trebuche is an ancient device used for launching projectiles. It acheives this by harnessing potential energy and allowing this potential energy to convert into kenetic energy. This potential energy is st..
A 0.60-kg mass is connected to a spring of spring constant k = 40.0 N/m. What is the frequency of oscillation? Find the maximum velocity of the mass.
A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s collides head-on and elastically with another ball initially at rest. estimate the velocity of the target ball after the collision
Two insulated wires, each 2.94 m long, are taped together to form a two-wire unit that is 2.94 m long. One wire carries a current of 8.36 A, What is the current I
An object is placed two focal lengths from a diverging lens. What is the magnification and location of the image.
A collision between two molecules that have the potential to react may or may not result in a reaction. Explain. List the four major factors that influence the rate of a chemical reaction
A wheel spinning at 25 rev/s is slowed to a stop by a constant acceleration while turning 50rev. What is the magnitude of the constant acceleration
A thermos contains 159 cm3 of coffee at 93.7 °C. To cool the coffee, you drop two 13.2-g ice cubes into the thermos. What is the final temperature of the coffee
a lead ball of mass 18.0 kg is dropped from rest from a height of 23.0 m above the ground, Write in vector format the acceleration of the ball
A 2000-N load Q is applied to the pulley C, which can roll on the cable ACB. The pulley is held in the position shown by a second cable CAD, which passes over the pulley A and supports a load P. Determine
It is desired to construct a solenoid that will have a resistance of 5.80 (at 20°C) and produce a magnetic field of 4.00 x 10-2 T at its center when it carries a current of 4.80 A. Determine the length the solenoid should have
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