Look up g, c, and the mass of the sun in appendix e and calculate the radius of a black hole that has the same mass as the sun. (note that this is only a theoretical calculation. the sun does not have enough mass to become a black hole.)

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide