Physics, 11.02.2020 02:44 queenkimm26
A truck is subject to a drag force, Fd, from the surrounding air: where Cd = 0.28 is the drag coefficient, A = 30 ft2 is the area of the front of the vehicle, and r = 0.075 lb/ft3 is the density of the air. How much power (in hp) is required to overcome drag if the truck is traveling at v=65 miles/hr? If the truck maintains a constant velocity, how much work (Btu) does the truck require for a 1-hour trip?
Answers: 2
Physics, 22.06.2019 05:30
Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.
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Physics, 22.06.2019 17:00
Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0mĂ9.0mĂ2.4m . if the outdoor temperature is 30 âc and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 âc is 31.8 torr.
Answers: 3
Physics, 22.06.2019 19:00
The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.
Answers: 1
A truck is subject to a drag force, Fd, from the surrounding air: where Cd = 0.28 is the drag coeffi...
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