An athlete runs a 100 m race in 10 seconds against a friction force of 100N. How do I work out his power output?

An 80-kg man climbs a 6-m ladder in 12 seconds. what is his average power expended?

The brightest emission line in the line spectrum of potassium is at 535 nm. what is the energy of the photon emitted?

What happens when the temperature of liquid water drops

A car accelerates from rest at 5 m/sec2 for 12 seconds what is the final velocity

The Colorado Potato Beetle is one of the most important agricultural pests worldwide. How many pesticides has the Colorado Potato Beetle developed resistance to? a 0 b 1 c Less than 10 d More than 50

Under what conditions will an object experience a gravitational force? Under what conditions will an object experience an electric force? Under what conditions will an object experience a magnetic force?

A basketball player pushes down with a force of 34 N on a basketball that is inflated to a gauge pressure of 9 x 104 Pa. What is the diameter of contact between the ball! and the floor?

Match these terms with their definitions: 1. unit of electrical resistance ampere 2. unit of electromotive force or electrical potential ohm 3. unit for measuring the strength of an electric current volt 4. unit of electrical power watt

In which is momentum conserved: an elastic collision or an inelastic collision?

List the types of radiation in order from least to most damaging.