Physics, 26.11.2019 02:31 candycrush24
During a very quick stop, a car decelerates at 7.00 m/s2 . (a) what is the angular acceleration of its 0.280-m-radius tires, assuming they do not slip on the pavement? (b) how many revolutions do the tires make before coming to rest, given their initial angular velocity is 95.0 rad/s ? (c) how long does the car take to stop completely? (d) what distance does the car travel in this time? (e) what was the car’s initial velocity? (f) do the values obtained seem reasonable, considering that this stop happens very quickly?
Answers: 3
Physics, 22.06.2019 09:40
(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
Answers: 1
Physics, 22.06.2019 12:10
Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)
Answers: 3
Physics, 22.06.2019 23:30
What kind of waves require a medium to travel? question 6 options: light waves mechanical waves all waves need a medium to travel electromagnetic waves
Answers: 1
During a very quick stop, a car decelerates at 7.00 m/s2 . (a) what is the angular acceleration of i...
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