In the dark in outer space, you observe a glowing ball of known mass 4.0 kg moving in the xy plane at constant speed in a circle of radius 6.5 m, with the center of the circle at the origin (<0, 0, 0> m). You can't see what's making it move in a circle. At time t= 0 the ball is at location <6.5, 0, 0> m and has velocity <0, 65, 0> m/s. Required:
At time t = 0, even though you can't see what's causing the motion, what can you conclude must be the vector Fnet?

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called