Physics, 25.07.2019 19:40 layshascott
Cindy is changing the tire on her car on a steep hill, 27.6 m high. she trips and drops the 8.7 kg spare tire, which rolls down the hill with an initial speed of 2.37 m/s. what is the speed of the tire at the top of the next hill, which is 7.9 m high?
Answers: 1
Physics, 21.06.2019 14:40
A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box
Answers: 1
Physics, 22.06.2019 08:00
Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.
Answers: 2
Physics, 22.06.2019 13:40
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
Physics, 22.06.2019 18:00
By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?
Answers: 1
Cindy is changing the tire on her car on a steep hill, 27.6 m high. she trips and drops the 8.7 kg s...
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