A car is driving along the freeway. Estimate the ratio r of its kinetic energy to its rest energy. T=

A dog in an open field runs 12.0 mm east and then 27.0 mm in a direction 50.0 ∘∘ west of north. In what direction must the dog then run to end up 12.0 mm south of her original starting point? Express your answer in degrees.   How far must the dog then run to end up 12.0 mm south of her original starting point? Express your answer with the appropriate units.

E has a magnitude of 21 and is perpendicular to F which has a magnitude of 40. Let X = E + F, let Y = E- F, and let Z = F-E. Determine the magnitudes of X, Y, & Z X = 45 Y = -34 Z = 34.0

An object is dropped from rest and takes 2.41 seconds to reach the ground below. From what distance above the ground was it dropped? State this as a positive number and assume it has proper SI Units.

Only the first question!!

A climber who is 75 kgs in mass reaches the peak of a mountain. If the mutual attraction between the climber and the Earth is 735.09 N, how tall is the mountain in meters? radius of the Earth = 6.38 x 106 m mass of the Earth = 5.98 x 1024 kgs

I hope that the question will be solved in no more than 10 minutes

There are two parts to this question. I need to know the km/s and the hr. Thank you!

uhh it says the correct answer should be 2.9 m... how would I go about getting to that answer?

A man walks 47.202 m directed 145.8047 degrees from the positive x-axis, then he walks 13.2801 m directed 73.6213 degrees from the positive x-axis, then finally he walks 43.3453 m directed 338.1284 degrees from the positive x-axis. How far he is now from his starting point? Express your answers accurate to four decimal places. Enter only the numerical value