Pls pls help will b forever grateful A student does an experiment to compare the potential energy of a block sliding down a ramp. He calculates the gravitational potential to be 150 J. However, the kinetic energy at the bottom was calculated to be ONLY 100 J. Why wasn't energy conserved in this situation?

Question 6 options:

The car's weight increased as it slided down the ramp.

The student pushed the car at the top rather than releasing it from rest.

The student gave an incorrect measurement for the ramp that was too BIG.

The student did NOT account for the friction converting some of the object's kinetic energy into heat.

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.

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.)