A 6.2 kg cannonball is fires from a 280 kg cannon. The cannon recoils with a velocity of 4.9 m/s. What is the velocity of the cannonball when it leaves the cannon?

Which best describes reflection and refraction? In both reflection and refraction, rays pass through a boundary. In both reflection and refraction, rays bounce off a boundary.

Where does the force for earthquakes came from?

suppose the distance between the sun and the earth were quadrupled. what exactly (numerically) would happen to the gravitational force between earth and the sun

A teacher pulls a box of books on a horizontal floor with a force of 290 N directed 40.9 degrese above the horizontal. the coefficiant of kinetic friction between the box and the floor is 0.184. the mass of the box and books is 44.5 kg.

How is thermal energy transferred between two objects that are at different temperatures?

What type of energy comes from the food that we eat?

Which of the following are vector quantities? check all that apply. a. time b. displacement c. force d. mass

Imagine you are on a bus with a helium balloon tied on a string tied to the seat in front of you. the bus stops short to avoid running over a rabbit and you are thrown forward. what happens to the balloon in relation to the bus? 1. the balloon pops.

Give one reason why the density of iron is higher than the density of oxygen

In which region of the periodic table do the elements NOT normally react chemically with other elements? A. metals B. metalloids C. nonmetals D. noble gases