Ball 1, with a mass of 20kg, is moving to the right at 20m/s. At what velocity should Ball 2, with a mass of 40kg, move so that they both come to a stand still upon collision?

What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity?

Can someone describe ONE way that a tornado might affect the habitat of humans in an area. I will mark brainliest

You push a friend sitting on a swing she has a mass of 50 kg and accelerates a rate of 4 m/s2 find the force you exerted

Matching questions 1. velocity 2. speed 3. gravity 4. deceleration 5. newton A acceleration in the opposite direction as the velocity of the object;

A motorboat maintained a constant speed of 1414 miles per hour relative to the water in going 4545 miles upstream and then returning. The total time for the trip was 7.07.0 hours. Use this information to find the speed of the current.

Wood is an example of a fossil fuel. User: The type of energy stored by fossil fuels such as coal is a. kinetic energy. b. mechanical energy. c. chemical potential energy. d. electromagnetic energy. User: An example of a fossil fuel is a. wood. b.

What type of changes does erosion cause? A physical B chemical C electrical D magnetic

Which of the following will exert a force on a magnet? another magnet a nearby piece of glass a nearby piece of plastic a nearby electric current

The rate at which light energy is radiated from a source is measured in which of the following units? A. Lumen B. Candela C. Lux D. Angstrom

Which type of energy makes up most of the internal energy of a solid substance? A. Kinetic energy from translation B. Kinetic energy from rotation C. Kinetic energy from vibration D. Potential energy from intermolecular forces