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A heat engine has an efficiency of 61.5% and it exhausts 7500 J of waste heat into the environment.
A. How much total heat energy is provided to the engine during the high temperature explosion?
B. How much work is performed by the previous heat engine?
A copper block is removed from a 300°C oven and dropped into 1.00 kg of water at 20.0°C. The water quickly reaches 26.5°C and then remains at that temperature. What is the mass of the copper block?
What is the maximum tension. The gastrocnemius muscle, in the back of the leg, has two portions, known as the medial and lateral heads. Assume that they attach to Achilles tendon. The cross-sectional area of each of these two muscles is typically f..
After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 7.20 kg of ice and the temperature of the ground was 40.5°C, calculate the energy that is required to melt all the ice at 0°C. Th..
Assuming the sun to be a blackbody with a surface temperature of 6000K, Determine the loss in solar mass per day due to this radiation
A gymnast of mass 52.0kg hangs from a vertical rope attached to the ceiling, calculate the tension T in the rope if the gymnast hangs on the rope
A 2.8-kg piece of aluminum at 28.5 degrees celsius is placed in 1.0 kg of water in a Styrofoam container at room temperature (20 degrees celsius)
To explain why he seems to hang in the air, compute the ratio of the time he is above ymax/2 moving up to the time it takes him to go from the floor to that height. You may ignore air resistance.
The initial velocity of a 2.28 kg block sliding down a frictionless inclined plane is found to be 1.11 m/s, What is the angle of the plane with respect to the horizontal
A person of mass 80kg stands at the center of a rotating merry-go-round platform of radius 3.2m, Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.
In the figure a small, nonconducting ball of mass m = 1.0 mg and charge q = 1.7 x 10-8 C, calculate the surface charge density of the sheet
A 75.0 kg man stands on a bathroom scale in an elevator that accelerates upwards from rest to 30.0 m/s in 2.00 s. Calculate the scale reading compared with his weight
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