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1 Equal amounts of heat are added to equal masses of copper and silver at the same initial temperature.
(a) Which metal will have the higher final temperature?
How many times greater will that temperature change be than the temperature change of the other metal?
2 A cylinder of gas is at room temperature (20°C). The air conditioner breaks down, and the temperature rises to 57°C. What is the new pressure of the gas relative to its initial pressure (p1)?
3 A sled and rider with a combined weight of 67 kg are at rest on the top of a hill 26 m high.
(a) What is their total energy at the top of the hill?
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(b) Assuming there is no friction, what would the total energy be on sliding halfway down the hill?
If an average frequency emitted by a 200,-,rm W light bulb is 5.00 times 10^{14} , {rm Hz}, and 10.0 percent of the input power is emitted as visible light, approximately how many visible-light photons are emitted per second .
Calculate the ratio of the number of HBr molecules in state
A car is moving with constant acceleration along a straight road. Determine how the velocity varies for positive acceleration if the car is initially moving to the right with a speed of 10.0 m/s
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 8.77 m, what is the magnitude of the astronaut's linear speed
A swing is made from a rope that will tolerate a maximum tension of 6.44 x 102 N without breaking. What is the mass of the heaviest person
When placed 1.2 m apart, the force each exerts on the other is 12 N and is repulsive. What is the charge on each? What if the force were attractive.
A trombone has an effective length of 160 cm and the speed of sound in air is 345 m/s. Notes are selected by moving a U-shaped tube in or out to change effective length of the trombone.
A father racing his son has 1/4 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.5 m/s and then has the similar kinetic energy as the son.
The objective of this assignment is to enable you to demonstrate your ability to develop a court management policy proposal that addresses the key factors that should be considered to ensure that legal requirements and best practices in management..
A 193 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. compute the velocity (speed) of the satellite
A 0.170-kg piece of aluminum that has a temperature of -155° C is added to 1.5 kg of water that has a temperature of 2.5° C. determine the mass of water that has been frozen into ice
The Earth has a static electric field almost everywhere on the surface of about 100 V/m, pointed downward, called the "Fair weather field". Calculate the total charge induced on the Earth's surface
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