The diagram below shows the before and after image of a cannon-cannonball system. Initially, the cannon-cannonball system are combined as a single mass at a resting position. After collision, the cannon and cannonball are separated, each having their own velocities.
the 24.6 kg cannonball leaves the 1696.5 kg cannon at a velocity of 184.2 m/s, what is the magnitude of the recoil velocity of the cannon?

1point) a skydiver weighing 130 lb (including equipment) falls vertically downward from an altitude of 14,000 ft and opens the parachute after 20 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.85|v|0.85|v| when the parachute is closed and is of magnitude 17|v|17|v| when the parachute is open, where the velocity vv is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. find the speed of the skydiver when the parachute opens. speed is 150.6121788 ft/s find the skydiver's height when the parachute opens. height is 2338.98591 ft find the limiting velocity vlvl after the parachute opens. (think about whether this should be positive or negative.) vl=vl= 7.647 ft/s

Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?