Group 2 and Group 3 stars represent which stages of development? Describe these groups in terms of their relative age, size, brightness, and temperature.

What is the tendency of two masses alone in the universe to drift together a result of?

A wave with 2.0 m amplitude has a frequency of 500 Hz is travelling at a speed of 200 m/s. What is the wavelength? Group of answer choices

A novice scuba diver practicing in a swimming pool takes enough air from his tank to fully expand his lungs before abandoning the tank at depth L and swimming to the surface. He ignores instructions and fails to exhale during his ascent.

The amount Of Kinetic energy an object has depends on its? A. Motion B. Position C. Gravity D. Height

Compare the acceleration of a rock in free fall with the acceleration of another rock in free fall dropped a few moments before.

An anion is an atom that has lost electrons. True or False?

Question: Jane, looking for Tarzan, is running at top speed (4.5 m/s) and grabs a vine hanging vertically from a tall tree in the jungle.

Kim holds a pinwheel in the air and says it can be used to model a source of energy. Identify the type of energy Kim's pinwheel models. Explain the type of energy source used.

An example of a stable system

What causes chemical weathering? a. damage caused by animals and plants c. natural acids b. ice wedging d. physical factors