What are two ways to change the state of a substance?

When jumping, a flea reaches a takeoff speed of 1.0 m/s over a distance of 0.47 mm. What is the flea's acceleration during the jump phase?

Assuming motion is on a straight path, what would result in two positive components of a vector?

The (nonconservative) force propelling a 1.50 * 103-kg car up a mountain road does 4.70 * 106 J of work on the car. The car starts from rest at sea level and has a speed of 27.0 m/s at an altitude of 2.00 * 102 m above sea level.

How would you convince somebody that the momentum of an isolated system is constant?

Which statement is true? 1. The law of equal areas suggests that the imaginary line connecting the Sun to a planet sweeps out equal areas in equal amounts of time. 2.

Why are stars changing colurs by blinking?

How many birds have tested positive for West Nile virus?

How much force is needed to stretch a spring 1.2 m if the spring constant is 8.5 n/m? 7.1 n 7.3 n 9.7 n 10.2 n

What forces are equal and opposite sides

B. how does the separation between galaxies compare to the separation between stars? based on your answer, discuss the likelihood of galactic collisions in comparison to the likelihood of stellar collisions.