Determine the power the engines have to provide
An airplane consists of a mass of around 30,000 kg and travels at 300m/s. When the drag force is 1000 N, determine the power the engines have to provide to keep flying?
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Assume that you are in an open field where two loudspeakers are set up and joined to the similar amplifier so that they emit sound waves in phase at 688 Hz. Take the speed of sound in air to be 344 m/s.
A diver increases quickly to the surface from a 5.0 m depth. When she didn’t exhale the gas from her lungs before rising, by what factor would her lungs enlarge?
The character is the uppercase letter, lower case letter, or digit. Each password should have at least 2 distinct characters. How many such passwords are possible?
About 16% of the population is allergic to pollen. If two people are randomly selected, (a) What is the probability both are allergic to pollen? (b) What is the probability at least one is allergic to pollen? Thank you very much.
Manufactured Machine Parts: A manufacturing procedure produces machine parts, the measurements of which must have a standard deviation of no more than 0.52 mm.
Determine what volume would the oxygen occupy at atmospheric pressure (and the similar temperature)?
Find whether given relation is the equivalence relation on set. Explain partition arising from every equivalence relation. a <= b if and only if ab not= 0 and a ~ b if and only if ab not = 0.
If the researcher employs a one-tailed test with Alpha=.01. Determine the power of the test for a sample of n=16?
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