A 80kg fire fighter climbs flights of stairs 6 meters high in 10 seconds. How much work is required by the firefighter

When two objects collide and stick together, what will happen to their speed, assuming momentum is conserved? They will move at the same velocity as whichever object was fastest initially.

What is the best description of a wave? a pulse that carries energy a disturbance that moves matter a medium disturbed by a vibration matter that is moved from one place to another

A block of a weight 48.0N rests on a horizontal table. A horizontal force of 36.0N is applied to the block causing it to move. The coefficient of kinetic friction is 0.420 and the coefficient of static friction is 0.640.

What is the hardy-weinberg principle?

What occurs when someone places an ice pack on an injured ankle? Conduction causes the ice pack to lose thermal energy. Conduction causes the ankle to gain thermal energy. Cold from the ice pack is transferred to the ankle.

What is the tense In sailed

Acceleration is a vector quantity. O O A. True B. False

What will happen to the brightness of a string of bulbs hooked up in series when you increase the number of bulbs in the string? A. Each light in the string will get brighter. B. Each light in the string will get dimmer. C.

What are the two factors that influence the composition of beach material

Which of the following indicates that a ChemicL change has taken place? (A) a change from liquid to a gas (B) an increase in the volume of a substance (C) a change in the color of a substance (D) a change from a solid to a liquid A precipitate is a