What is used to represent a recessive trait in the a Punnett square.

A surface receiving sound is moving from its original position to a position three times farther away from the source of the sound. the intensity of the received sound thus becomesA. three times as high. b. nine times as high. c. nine times as low.

A thermometer measures the temperature of air and uses units like?

Are all these a chemical change Burn Dissolve Rust Explode

From which of the following do spiral galaxies form? A. High-density proto-galactic clouds B. Rapidly spinning proto-galactic clouds C. Colliding/merging proto-galactic clouds D. Rapidly cooling proto-galactic clouds

The actual mechacl advantage of a machaine.

Ron bicycles forward with an acceleration of 2.1 m/s2. If he is applying a forward force of 195 N, what is his mass?

Diane swim 5 kilometers against the current in the same amout of time it took her to swim 15 kilometers with the current. The rate of the current was 2 kilometers per hour. How fast would diane swim if there were no current?

A man paddles a canoe in a long, straight section of a river. The canoe moves downstream with constant speed 5 m/s relative to the water. The river has a steady current of 1 m/s relative to the bank. The man's hat falls into the river.

In an atom, almost all of the mass is concentrated in a tiny nucleus because

A truck travels down the highway at a speed of 110 km/hr. How long does the trip last if the truck covered 2200km?