What is the momentum of an 8.8-kg bowling ball rolling at 3.0 m/s?

Which of the following correctly describes magnetic poles.

Rail guns can accelerate an object by using the magnetic force on a current carrying device. A rail gun is constructed to accelerate a length of copper wire, having a radius of 5.1 x 10-4 m and density,  = 8960 kg/m3.

Two children push on opposite sides of a door. The first child pushes with a force of 30 N perpendicular to the door at a position 0.4 m from the hinges of the door.

When a rocket lifts off what provides the momentum match of the upper lift

What is the Meaning of Electromagnetism?

Current flows through a resistor; (a) with no direction since it is not a vector (b) from any potential to any different potential (c) from high potential to low potential (d) from low potential to high potential (e) cannot be determined

A concave mirror has a focal length of 11 cm. What is its radius of curvature?

Assume each tick mark represents 1 cm. Calculate the total displacement from 0 if an object moves 3 cm to the left, then 7 cm to the right, and then 6 cm to the left. The object moves cm to the left. What is the total distance the object travels? cm

A sound wave has a frequency of 510 Hz in air. Which of these is closest to the wavelength of this sound? (The speed of sound in air is 343 m/s.

The diagram below shows the process of distillation of saltwater into pure water. Where is the pure water in the diagram? a. A b. B c. C d. D