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Suppose a planet with three times the mass of Earth is orbiting a star that has three times the mass of the sun at an average orbital radius that is three times larger than Earths orbital radius. How big is the gravitational force that the star exerts on the planet compared to the gravitational force that exerts on the earth?
How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 24°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
a parallel-plate capacitor has circular plates of 8.90 cm radius and 1.70 mm separation.a calculate the capacitance.b
A sound wave of velocity 330 m/s and wavelength 0.70 m is produced for 0.50 s. What is the frequency of the wave? How many complete waves are emitted in this time interval? After 0.50 s, how far is the front of the wave from the source of the sound?
a crate of mass 10.6 kg is pulled up a rough incline with an initial speed of 1.54 ms. the pulling force is 92 n
After 35 minutes of running, at the 9km points in a 10km race, you find yourself 100 m behind the leader and moving at the same speed. what should your acceleration be if you are to catch up by the finish line? assume that the leader maintains a c..
A long, straight wire carrying a current of 3.00 A is placed along the axis of a cylinder of radius 0.500 m and a length of 2.00 m
Discuss the similarities and differences between arbitration and judicial hearings with particular emphasis on the common law of the shop, admission of evidence, and the role of the arbitrator versus that of the judge.
A chair of weight 70 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 37.0 directed at the angle of 42 below the horizontal and the chair slides along the floor.
One of the sculptures displayed on a university campus consists of a hollow cube made of six aluminum sheets, each 5 × 5 ft, welded together and reinforced with internal braces of negligible weight.
steel train rails are laid in 12m long segments placed end to end. the rails are laid on a winter day when their
You carry a 7.0 kg bag of groceries across a 5.3 m room, where the room's flat floor is a 1.2 m above the ground. How much work do you do on the bag in the process
Suppose the speeder is traveling with a constant speed of 25m/s , and that the maximum acceleration of the police car is 3.1m/s2. find the maximum head-start distance the speeder can have
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