True or false? a physical change is a change of matter from one form to another without a change in chemical properties

What is 7 to the power of 5

What evidence suggests that Earth attracts or pulls on objects?

What is the internal energy of 3.00 mol of N2 gas at 25 degrees C? To solve this problem, use the equation: U electronic gas = 5/2nRT. Remember that R = 8.31 J / (mol-K) and K = degrees + 273. A. 37, 100 J B. 18,600 J C. 1560 J D. 623 J

1. An automobile with a mass of 1000 kg accelerates when the traffic light turns green. If the net force on the car is 4000 N, what is the car's acceleration?

If you quadruple the temperature of a black body, by what factor will the total energy radiated per second per square meter increase?

If you are asked to determine an objects speed, what information must you have? A: distance and period of time B: distance and direction C: period of time and direction D: distance and change in position

What is the kinetic energy of a 1150 kg sports car traveling down the road with a speed of 29 m/s?

3. A 2,000-kilogram railroad car moving at 5 m/sec to the east collides with a 6,000-kilogram railroad car moving at 3 m/sec to the west. If the cars couple together, what is their velocity after the collision?

A pendulum swings with amplitude. 02 m and period of 2 s what is its maximum speed

What bone cells respond to stress?