1. How many calories of heat are required to raise the temperature of 550 g of water from 12.0°C to

18.0°C? (remember the specific heat of water is 1.00 cal/g x °C)

Which of the following is created by fans? a) Air flow b) Water flow c) Wastewater flow d) Vacuum flow

Friction is generated when?

A drag racer, starting from rest, travels 6.0 m in 1.0 s. Suppose the car continues this acceleration for an additional 4.0 s.

Anya knows the velocity of an object. what else does she need to know in order to find the object's momentum?

How did the strength of gravitational force and electric force differ? A) gravitational force increases as distance increases, but electric force does not B) Electric force decreases as distance increases, but gravitational force does not C)

Describe the climate and name the climate zone at alaska; portland, oregon; and key west, florida.

If a river is 20 feet wide in nature and needs to be scaled to one-tenth its real size, how wide should it be in a model?

A sample has a density of 30 g/ml. there is 60 ml of this substance. how much does it weigh?

Forgetting takes place only in short-term memory.

What is the simplest relationship between the angular wavenumber k and just one of the other kinematic variables? Express your answer using only one of the other kinematic variables plus constants like π.