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A 7.1-kg block of aluminum is heated from 30°C to 60°C at atmospheric pressure.
(a) Find the work done by the aluminum.
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(b) Find the amount of energy transferred to it by heat.
(c) Find the increase in its internal energy.
Two metal balls are hung from strings. The first ball, 0.14 kg, is pulled to the side and released, What is the mass of the second ball
A uniform block of height 0.330 m, floats in glycerin of density 1260 kg/m3. The bottom of the block is 0.2748 m below the surface of the glycerin. Illustrate what is the density of the block?
Consider Joule's experiment described in the insight below. Assume the mass m = 2.5 kg and the fluid is water with a volume of 1.19 L. What is the increase in the temperature of the water
A spring whose spring constant is 750 N/m is compressed by 15 cm from. 10 kg ball. How high will the ball go in the air
You are driving north on 107th Avenue at a speed of 32.3 mph. A police car whose siren produces a sound at a frequency of 513 Hz is approaching from the opposite direction at a speed of 61 mph, At what frequency do you year the siren
A 7.11-kg box is sliding across the horizontal floor of an elevator. find the kinetic frictional force that acts on the box
A parallel plate capacitor is connected to a battery. The space between the plates is filled with air. Find the electric field inside the dielectric
A fox fleeing from a hunter encounters a 0.795 m tall fence and attempts to jump it. By how much does the fox clear the fence
Find out the normal force exerted on the crate by the elevator.
A police car is moving towards you at a speed of 36.0 m/s. Its siren produces a frequency of 850 Hz. What frequency do you hear after it passes by you
Studies of the relationship of the sun to our Galaxy- The Milky Way - Have revealed that the sun is located near the outer edge of the galatic disc, what is the period of the sun's galactic motion
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. What are the magnitude and direction of the velocity of the red glider after the collision
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