The sun emits energy by converting hydrogen into helium. what is this process called?

Which of the following statements are true? a. Kinematics is the science that studies forces and motion of particles and bodies. b. Speed is a vector quantity. c. The units of velocity are length divided by time. d.

State the law of conservation of linear momentum.

A series circuit contains four light bulbs. The switch is opened and one of the bulbs is removed, but not replaced. Then the switch is closed again. What would you expect to see?

The frequency of a light wave in air is 5.3 * 10¹⁴ Hz. Is the fre-quency of this wave higher, lower, or the same after the light enters a piece of glass?

For the Doppler effect to occur?

How can you see a unicellular organsim

Why is it important to understand the concept of density?

Which force is responsible for contact forces

The application of science to solve practical problems is known as

Describe the adaptive (evolutionary) significance of organizing genes into chromosomes. i. allows for genetic variation in the processes of crossing over and independent assortmentii.