You are driving up a long ,inclined road. After 1.50 mi you notice that signs along the roadside indicate that your elevation has increased by 520 ft A) What is the angle of the road above the horizontal?
B) How far do you have to drive to gain an additional 160 ft of elevation ?
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Identical marbles are released from the same height on each of the following four frictionless ramps . compare the speed of the marbles at the end of each ramp. explain your reasoning

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?

Explain why electric current cannot exist if a current doesn't have a voltage source.