Name two index fossils. Why are these fossils important to the practice of relative aging?

Outline the main events in the Moon's geological history.

A puck is, sitting motionless on ice. why does it stay in one place?

What is the relationship between electric motors, generators, and transformers?

A girl and boy pull in opposite directions on a stuffed animal. The girl exerts a force of 3.5 N. The mass of the stuffed animal is 0.2 kg, and it is accelerating to the right 2.5 m/s2. What is the force that the boy is exerting? N

Which law best describes this statement? Earth moves faster in the winter when it's closest to the sun. A. Newton's law of gravity B. Kepler's law of orbits C. Kepler's law of areas D. Kepler's law of periods

When you jump straight up as high as you can, what is the order of magnitude of the maximum recoil speed that you give to the Earth? Model the Earth as a perfectly solid object.

Consider the Sun and Earth as a single system. How does the law of conservation of energy apply to this system? A) The energy from the Sun that reaches Earth is destroyed by Earth.

Based on the law of conservation of energy, which statement is false Energy is lost when machines don't work right. We can't add more energy to the universe. We can't destroy energy that exists in the universe.

A 120-g rubber ball is thrown with a speed of 10 m/s at an oncoming 900-kg car which is approaching at 30 m/s, and undergoes a one-dimensional elastic collision with the car.

Name two index fossils. Why are these fossils important to the practice of relative aging?