A student places two charged objects in your each other. The objects repel each other. The student concludes that the object must both the negative. Do you agree? Explain.

Car A runs a red light and broadsides Car B, which is stopped and waiting to make a left turn. Car A has a mass of 1,800 kg. Car B has a mass of 1,500 kg. After the impact, the cars stick together and slide away at a speed of 7.1m/s.

The crankshaft in a race car goes from rest to 3000 rpm in 2.0 s. a. what is the crankshaft's angular acceleration? b. how many revolutions does it make while reaching 3000 rpm?

A long pipe of outer radius R 1 = 3.70 cm and inner radius R 2 = 3.15 cm carries a uniform charge density of 1.22 mC/m 3.

The acceleration towards the center of the earth due to gravity is:

How does the force of gravity change as the distance between 2 objects change?

What chemical phenomenon accounts for the elasticity seen in solids? covalent bonds, hydrogen bonds, ionic bonds, all of the above

The particles in a surface water wave move back-and-forth only. Question 9 options: True False

Does the acceleration of a falling body change or is it constant

What can cause sediment to form on land? Only mechanical weathering rocks Only biological weathering rocks Any kind of weathering or rocks Melting of rock in the core

The speed of a car is decreasing uniformly from 35 m/s to 15 m/s in 4 s the magnitude of the car's acceleration is