Decreases efficiency by causing an energy loss to the environment

A. Mechanical advantage

B. Efficiency

C. Machine

D. Friction

A 10-KG cart moving at 5 m/s collides with a 5 KG cart at rest and causes it to move 10 m/s. Which principal explains the result?

What type of bond involves the transfer of electrons between two elements? A. ionic B. covalent

What is gravity and why is it important to man

Type the correct answer in the box. Spell all words correctly. What is the correct term for an area of rotating currents in an ocean? When ocean currents combine, they create an area of rotating currents called a (n) Reset Next

A patient with type A blood is accidentally given a transfusion of type AB blood. Which of the following correctly describes what will happen in the patient's body?

Gravity pulls gases and dust particles in space toward one another, squeezing them into a smaller and smaller space. The temperature at the center rises high enough for fusion of hydrogen to begin.

Which has greater kinetic energy: a bullet that has a mass of 0.05 kg travelling at 2500 m/s, or a lorry that has a mass of 4500 kg and is moving at 50 m/s?

Bio mass, sun, wind, water

What is the mass of 5 moles of gold

A crane lifts a 400 N crate full of baked beans 15 m. How much work was done by the crane?