Captain rogers (100 kg) was out repairing his spaceship's radiator when it was
struck by an asteroid! he fell off and broke his tether tying him to his ship. all he
has on him is his space suit (with only a few minutes of reserve oxygen) and his
50kg toolbox.

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two

What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%