How much force is needed to accelerate a space shuttle 15 m/s2 with a mass of 2,030,000 kg A) 739,000,000 n
B 30,540,000 n
C 135,333 n

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

Why does karst topography exist in some geographic location? a. few climates have enough oxygen b. most regions have rock layers other than limestone c. in most regions, the soil is too thin d. the water is too acidic enough in most places