A man of mass 80kg stands next to a stationary ball of mass 4kg on a frictionless surface. He kicks the ball forward along the surface with a speed 15m/s. Calculate the man's recoil speed

How would water be different if it wasnt a polar molecule?

The primary energy source for most communities is sunlight. Producers use sunlight to make carbohydrates. Consumers eat producers and use the carbohydrates for energy. What happens to the energy in a consumer's body when it dies?

Which of these has the most inertia? A. a parked bus B. a 10-kilogram mass C. a 16-pound bowling ball D. a wheelbarrow full of bricks

A horse pulls on an object with a force of 300 newtons and does 12,000 joules of work. How far was the object moved? 1. 40 2. 0.03 3. 5 * 10↑5 4. 10 * 10↑4

How is the tesla coil used today

Lemonade powder is stirred into water until it dissolves. Which are true statements? Check all that apply. A. Lemonade is the solute. B. Water is the solvent. C. Lemonade is the solvent. D. Water is the solute.

A skateboarder is accelerating forward. How would his acceleration change if he had more mass? A. His acceleration would decrease. B. His acceleration would be zero. C. acceleration would stay the same. D. acceleration would increase.

What is phanerogam? mention it's two group

A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?

What is electrical conductivity?