A.) what is the lowest value of average trip speed? 1.25 mpm
b.) what is the car's average trip speed at t=65? 1.28 mpm
c.) give a time at which the car's average trip speed is 1.6 mpm. 24 minutes
d.) how far does the car travel in the first 30 minutes? miles
e.) how far does the car travel from t=50 to t=80 minutes? miles
f.) what is the car's average speed from t=70 to t=75 minutes

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?