What was the first human invention to break the sound barrier?

How long does it take to walk 2000 miles?

1. A surfer moving with an initial speed of 1.5 m/s catches a wave and accelerates at a constant rate of 2.1 m/s2 for 2.2 s. a) How far does the surfer travel in those 2.2 seconds? b) What's the velocity of the surfer at the end of those 2.

If we start with 400 atoms of a radioactive substance, how many would remain after one half-life? After 2 half-lives? After 3 half-lives? After 4 half-lives?

What do we call the substances that are formed as a result of substances reacting together? Group of answer choices A) none of the answers are correct B) catalysts C) products D) reactants

What is the kinetic energy of a 3000 lb car traveling at 60 mph?

A rockets initially at rest, it steady gains speed at a rate of 10m/s^2 for 4.6s during take off. What was the rocket's top speed?

What do you mean by kintic theory of matter

What do u think is the smallest piece that you could break sand into

You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. You shoot the gun straight up, and it takes 36.761s for the dart to land back at the barrel.

Why do windows have two panes of glass separated by a layer of air