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The resistivity of the commercial copper is 1.72 x 10^-8 m. The diameter of a copper wire in the coil of a solenoid is 0.25 mm, and its length is 65 m. Find
a) the resistance of the coil,
b) the heat generated in the coil each second when it is connected to a battery of 1.5 V, (assuming the battery is ideal).
You have a flashlight that uses 0.75 watts of power and requires 1.5 volt battery, How many joules of energy are used by the flashlight in 15 minutes
When an object moves through a fluid, the magnitude of the drag force F drag acting on the object is given by .5CρρV2A where ρ is the density of the fluid
A single conservative force acts on a 5.30-kg particle within a system due to its interaction with the rest of the system. calculate the change in the potential energy of the system
A 15 N block lifted straight upward by a hand applying a force of 15 N has an initial kinetic energy of 7 J. What is the block's final kinetic energy
A 0.760 m long brass pendulum experiences a 21.0°C temperature increase. What is the change in the period
Air that occupies 0.15 cubic meters at 1.03e+05 Pa gauge pressure is expanded isothermally to atmospheric pressure and then cooled at constant pressure until it reaches its initial volume
The boiling point of water increases with depth because pressure increases with depth. at what depth will fresh water have a boiling point of 150 degree celcius if the surface of water is at sea level
A 3.06 kg block slides down a frictionless plane inclined 18.6' to the horizontal. If length of the plane's surface is 1.43 m, how much work is done, and by what force.
A 60.0 g bullet is fired from a muzzle velocity of 525 m/s from a gun with mass 4.50 kg and a barrel length of 55.0 cm, Find the bullet's momentum as it leaves the barrel
A horizontal plank 4.00 m long and having mass 20.0 kg rests on two pivots, Find the magnitude of the force exerted on the plank by the second pivot
In Young's double slit experiment, 422 nm light gives a third-order bright fringe at a certain location on a flat screen. What is the longest wavelength of visible light
A solid spherical ball rolls 7.0 meters without slipping along a ramp inclined at 35 degrees to the horizontal
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