What does the release or absorption of energy indicate?

chemical change

physical change

physical and chemical changes

neither physical nor chemical changes

What is a pulleys purpose

While watching a small fireworks display from a building 204 feet tall, you observe a rocket that travels from ground to eye level in 6 seconds, and explodes. What is the maximum speed that you can guarantee that the rocket reached?

The seasons are caused by a. Earth's varying distance from the sun. b. Earth's changing rate of rotation. c. the tilt of Earth's axis as Earth revolves around the sun. d. shifting climates on Earth's surface.

the amount of water returning to the earth through precipitation is blank the amount of water leaving the earth through evaporation

Compare and contrast the life cycle of a low mass star and a high mass star

What property of sound enables us to distinguish one sound source from another?

The table below shows the right ascensions of two stars at a location. Star 1 - 4 right ascension (in Hour) Star 2 - 3 right ascension (in Hour) Which of these statements is correct about the stars?

H-2 + H-3 → He-4 + Consider the nuclear reaction that takes place in the sun. Two nuclides of hydrogen fuse to form helium. Is helium the only product of this reaction? If no, identify any additional products. A) Yes, He-4 is the only product. B) No.

Hat is a scientific theory? Make up your own scientific theory.

Which of the following is an example of a velocity? O A. 12 m/s O B. 45 km/hr south O C. 55 km/hr D. - 5 m/s2 east