With what speed will helicopter hit the ground
A helicopter is traveling at 40 m/s at a constant altitude of 100 m over a level field. If a wheel falls off the helicopter, with what speed will it hit the ground? (air resistance negligible)
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7 g helium at 50 kPa and 200 K (ideal gas, M = 4, k = 5/3) are compressed polytropically in a quasistatic process with pv1.8 to 600 kPa. Find the final temperature of helium. find the work and heat interactions.
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A large midwestern state administers a statewide mathematics exam that has an average of 500. A researcher is designing a study to test the idea that students from charter schools score higher than average on the test.
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