Calculate the speed for a car that went a distance of 125 kilometers in 2 hours

Which of the following is not a type of system? Mechanical Ecological Social Classical

Anna Litical is doing the It's All Uphill Lab. She applies a 13.8-Newton force parallel to the inclined plane in order to pull a cart up a hill inclined at an angle of 51.6 degrees.

What type of roadway has the highest number of hazards per mile?

Determine the magnitude of the acceleration for the speeding up phase.

A student is turning the handle of a generator. another student connects a Bulb to the generator. the bulb lights up. The first student continues to turn the handle of the generator at the same speed, but finds it harder to turn.

Two copper wires with different diameters are joined end to end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire?

A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player/'s hand.

Volume can be measured in liters or cubic meters. a. T b. F

A spring with a spring constant of 1200 N/m has a 55-g ball at its end. The energy of the system is 5.5J. What is the amplitude of vibration?

Force F1 acts on a particle and does work W1. Force F2 acts simultaneously on the particle and does work W2. The speed of the particle does not change. Which one of the following must be true? a. W1 is zero, and W2 is positiveb. W1 = - W2c.