Calculate the kinetic energy of a 4 kg object traveling at 16 m/s

When it is cloudy, many of the sun's rays never reach the Earth. What does this do to the temperature

What characteristics of EM waves did you discover?

How much rope would need to be pulled through a pulley with a mechanical advantage of 2 to lift a load 4 ft?

An idea based on observations with no experimental evidence is a:a. Hypothesisc. Theoryb. Modeld. Law

What are the SI base units for length and mass? kilometer and gram meter and gram meter and kilogram kilometer and kilogram

A machine called a centrifuge is used in

Suppose the skin temperature of a naked person is 34°C when the person is standing inside a room whose temperature is 26°C. The skin area of the individual is 1.2 m2. (a) Assuming the emissivity is 0.

Which of the following is NOT a way to increase energy efficiency? a. putting insulation in your home c. using public transportation b. recycling d. using low heat lightbulbs

A 20kg child lifts his 0.5kg ball of the floor to put it away on his bookshelf 1.5 meters above the ground. How much work has he done?

When you touch a hot object, a reflex controls your movements. but how do you know the object was hot?