A 1250-kg sports car (including the driver) crosses the rounded top of a hill (radius = 89.0 m ) at 23.0 m/s . a) Determine the normal force exerted by the road on the car.
b) Determine the normal force exerted by the car on the 70.0-kg driver.
c) Determine the car speed at which the normal force on the driver equals zero.

When a resistor with resistance r is connected to a 1.50-v flashlight battery, the resistor consumes 0.0625 w of electrical power. (throughout, assume that each battery has negligible internal resistance.) what power does the resistor consume if it is connected to a 12.6-v car battery? assume that r remains constant when the power consumption changes.

What are the factors that affect the resistance of a wire?

You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.