Physics, 14.11.2019 20:31 blackjack73
Adrag racing car with a weight of 1600 lbf attains a speed of 270 mph in a quarter-mile race. immediately after passing the timing lights, the driver opens a drag chute. at this point, the air and rolling resistance of the car are negligible compared to the drag of the chute. what chute diameter (in feet) is required to make sure that the car decelerates to 60 mph within 7 seconds?
Answers: 2
Physics, 22.06.2019 10:40
When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is
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Physics, 22.06.2019 11:30
Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)
Answers: 3
Physics, 22.06.2019 22:40
Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages
Answers: 2
Physics, 23.06.2019 02:00
The gravitational force between pluto and charon is 3.61 × 1018 n. pluto has a mass of 1.3 × 1022 kg, which is only slightly greater than charon’s mass of 1.6 × 1021 kg. how far apart are pluto and charon? 2.0 × 107 m 2.4 × 1012 m 3.8 × 1014 m 5.8 × 1024 m
Answers: 1
Adrag racing car with a weight of 1600 lbf attains a speed of 270 mph in a quarter-mile race. immedi...
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