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A 5.0 kg block of aluminum isheated at atmospheric pressure so that its temperature increasesfrom 20°C to 38°C.
(a) Find the work done on thealuminum.
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(b) Find the energy Q added to the aluminum.
(c) Find the change in internal energy of the aluminum.
Jane and John, with masses of 51 kg and 66 kg, correspondingly, stand on a frictionless surface 13m apart. John pulls on a rope that connects him to Jane, giving Jane an acceleration of 0.9m/s2 toward him.
Two capacitors are connected to a battery. The battery voltage is V = 70 V, Determine the total energy stored by the two capacitors
Two converging lenses having focal lengths of f1 = 11.1 cm and f2 = 20.0 cm are placed = 50.0 cm apart, How far to the left of the first lens should the object be positioned
Two large metal plates of area 0.5 m2 face each other. They are 4.8 cm apart and have equal but opposite charges on their inner surfaces. what is the magnitude of the charge on each plate
A spherical raindrop of mass 0.00942 g and radius 1.31 mm falls from a cloud that is at a height of 1115 m above the ground. What would be the raindrop's speed just before landing on the ground if there were no drag force
A 3.25 g bullet picks up an electric charge of 1.55 µC as it travels down the barrel of a rifle. find the magnitude of the magnetic force on the bullet
Two equal charges of magnitude +1 C are separated by a distance of 1 km. What is the force acting between these two charges
An electric motor rotating a workshop grinding wheel at a rate of 93 rev/min is switched off. Assume the wheel has the constant negative angular acceleration of magnitude 2rad/s2.
A massless spring with spring constant k is compressed by an amount xo. What is the velocity of the combined masses (m+2m) just after the collision
A dielectric sphere of radius a has a charge +Q uniformly distributed throughout its volume. What is the potential outside the shell
Consider the gas-solid equilibrium in the model when oscillators in the solid move in three dimensions. In the high temperature limit T>>hbarω find pressure P(T) as the function of temperature.
A 37.8 kg box initially at rest is pushed 5.27 m along a rough, horizontal floor with a constant applied horizontal force of 81.3836 N. Find the work done by the friction
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