Consider the position-time graph. Determine the velocity (in m/s) of the object whose motion is represented by the graph. The velocity is the slope: rise (m) over run (s) is (m/s). (Use a + or - sign to indicate a direction and enter your answer as a decimal, not a fraction.)

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.

At what time will the interfering waves have an amplitudeof zero?