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An engine does 17600 J of work and rejects 5740 J of heat into a cold resevoir whose temperature is 290 K. What would be the smallest possible temperature of the hot resevoir?
What is the kinetic energy of a carbon atom moving with a speed of 500 m/s.
The root-mean-square speed at 299K is 483 m/s. What is its average translational kinetic energy at that speed
Two charged objects experience a mutual repulsive force of 0.71 N. If the charge of one of the objects is reduced by half and the distance separating the objects is quadrupled, what is the new force? (Enter the magnitude of the force.)
A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0032 s. find the average force exerted on the ball by the club
Two trains on separate tracks move toward one another. Train 1 has a speed of 100 km/h, train 2 a speed of 60.0 km/h. Train 2 blows its horn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1? (Suppose the speed o..
he plane is traveling horizontally at 150.0 m/s at a height of 70.0 m above the ground. Illustrate what horizontal distance does the package travel before striking the ground?
In the figure below, block 1 of mass m1 slides from rest along a frictionless ramp from height h = 2.30 m and then collides with stationary block 2, which has mass m2 = 2.00m1. What is the value of distance d if the collision is elastic
two balls are approaching each other head-on. their velocities are 9.86 and -11.9 ms. determine the velocity of the
An iron tower in is 39 meters tall on a cold day, What is the HEIGHT of the tower on a hot day when the temp is 31.5 degrees Celcius
You have two lenses separated by 25cm. Lens one is onthe left it has a focal length of 15cm. What is the image going to look like
A 8 kg hammer strikes a nail at avelocity of 8.9 m/s and comes to restin a time interval of 8.0 ms. What is the impulse given to the nail
You are driving home from school steadily at 80 for 150. It then begins to rain and you slow to 50. You arrive home after driving 3 hours and 20 minutes.
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