What is the opposite force to pushing off the ground to jump

Which of the following values represents an index of refraction of an actual material? A. 1 / 4 B. 5 / 4 C. 0 D. 1 / 2

Imagine a place in the cosmos far from all gravitational and frictional influences. Suppose that you visit that place (just suppose) and throw a rock. What will the rock do? Why?

1. An object travels 15 m in 3 s. What is the speed of the car? 2. An object travels 20 m in 4 s heading south. What is the velocity of the object?

3 physical adaptations of a frog

Height formula in physics

Groups of the periodic table correspond to elements with a the same color b the same atomic number c similar chemical properties d similar number of neutrons

If a child ran into the road 65 to 70 feet ahead of your vehicle, what is the highest speed from which you could stop with good brakes before hitting him?

Which of the following describes a response to external stimuli? a rabbit runs away from a fox that is chasing it a woman drinks water when she is thirsty a boy eats food when he is hungry a person yawns when oxygen levels in the blood are low

Why do moon phases repeat about every 28 days

Which energy transformation takes place when a firecracker explodes