Two identical objects are moving directly toward one another at the same speed v. ~v - ~v m m What is the total kinetic energy of the system of the two objects?

A passenger on a balloon drops a baseball over the side of the gondola. As the baseball falls faster, the drag force from air resistance increases.

A car travels 50 miles in 2.5 hours. Calculate the average velocity

How is shooting a shotgun related to newtons third law? why does a rifle have less "kick" then a shotgun?

A loop with a break in it that prevents current form flowing is called a (n) blank circuit

If the person can't accommodate and the glasses is + 2.50d, at which distance will the person see clearly

A 160 kilogram cannon fires a 30 kilogram cannonball with a speed of 45 m/s at an angle of 30 degrees with the horizontal. In what direction and at what speed does the cannon recoil?

A student uses an indicator to measure the pH of a solution. The indicator shows a pH of 7. What must be true of this solution? The solution contains neither hydronium ions nor hydroxide ions.

What is the purpose of a valve?

A particle travels 15 times around a 10-cm radius circle in 42 seconds. what is the average speed (in m/s) of the particle?

Where are the magnetic fields stronger near a bar magnet? A) Top B) Center C) Ends D) Bottom