A teen who weighs 180 pounds normally is standing on a scale inside an elevator The elevator is moving downwards with a constant velocity of 6 m s and then begins to slow down at a rate of 2 m s2 Before the elevator begins to slow down the reading of the scale is and while the elevator is slowing down the reading of the scale is

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?