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

What is the force in units of newtons of a 40 pound object? a) 176 N b) 9.1 N c) 4.0 N d) 400 N

How much work can be done by a 50.0 W electric motor in 3 minutes?

Which best compares freezing and condensation? a. Both involve changes between liquids and gases. b. Both involve changes between gases and solids. c. Both involve the release of heat. d. Both involve the absorption of heat.

A block of ice at 0°C is added to a 150g aluminum calorimeter cup which holds 210 g of water at 12°C. If all but 2.0 g of ice melt, what was the original mass of the block of ice?

What type of voltage source has a solid electrolyte?

Electronic signals that pulse current in a series of ones and zeros are known as

If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?

List 3 quantities of waves.

Bailey is on the tenth frame of her recent bowling competition and she needs to pick up the last pin for a spare and the first place trophy. She rolls the 7.05-kg ball down the lane and it hits the 1.53-kg pin head on. the ball was moving at 8.

Which of the following is a conservative force? 1. force due to friction 2. force due to gravity 3. both (1) and (2) 4. neither (1) nor (2)