Physics, 17.09.2021 16:40 hunterallan569
Charlotte drops a corn cob our the truck window while traveling
down the road at 22m/s. It takes 0.63 s to hit the ground.
How far did the corn cob travel horizontally as it fell?
a. corn cobs don't travel horizontally
b. 13.86 m
c. 34.9 m
d. 0.03 m
Answers: 3
Physics, 21.06.2019 17:20
You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u.s. legal proceeding.)
Answers: 3
Physics, 22.06.2019 12:30
Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?
Answers: 3
Physics, 22.06.2019 15:20
Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
Answers: 3
Physics, 22.06.2019 16:00
What is friction? how does it affect the motion of an object?
Answers: 1
Charlotte drops a corn cob our the truck window while traveling
down the road at 22m/s. It takes 0...
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