a cannonball weighing 100 N is shot into a fortress wall. It enters the wall at a velocity of 200 m/s and exits the wall with a velocity of 60 m/2 one second later. What force did the wall exert on the cannonball?

Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers