A 1020 kg artillery shell is fired from a battleship. While it is in the barrel of the gun, it experiences an acceleration of 2.3 × 104 m/s2. 1. What net force is exerted on the artillery shell before it leaves the barrel of the gun (in Newtons)?
2. What is the magnitude of the force exerted on the ship by the artillery shell in Newtons?

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.