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a heat engine operates between a hot reservoir at 950 degree celcius and a cold reservoir at thoroughly room temperature(22 degree C). what is the maximum possible efficiency?
A rifle with a mass of 1.76 kg fires a bullet with a mass of 5 g (0.005 kg). The bullet moves with a muzzle velocity of 401 m/s after the rifle is fired. what is the recoil velocity of the rifle
A spacecraft is traveling with a velocity of v0x = 4330 m/s along the +x direction. Two engines are turned on for a time of 728 s. One engine gives the spacecraft an acceleration in the +x direction of ax = 1.74 m/s2.
Find density of the object
A rocket with mass 1000kg accelerates upwards at a rate of 20m/s (a) How long does it take before it is going at the speed of sound (334 m/s)? (b) How long does it take before the rocket is at a height of 100km?
Find out the magnitude of the impulse imparted to golf ball?
A 40.0 cm diameter cylinder of helium gas is 70.0 cm long and at 30.0 ^circC. The pressure gauge reads 140 psi. How many helium atoms are in the cylinder.
What is work done by the non-conservative force
What is the period of oscillation of the scale? State your reply numerically in seconds.
A lens is placed 15 cm from the lamp, and the image is observed 32 cm from the lamp. find the distance of the second image from the lamp
A 440.0-N force accelerates a go-cart and its driver from 10.1 m/s to 18.1 m/s in 5.20 s. What is the mass of the go-cart plus driver
A muon is created at the top of Mount Nanga Parbat (height 8,100 m) and travels at constant speed to sea level, what is the height of Mount Nanga Parbat
Explain how would your answer differ if the taxes payable method were used in accounting standards for private enterprises? Describe, do not calculate.
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