The average speed of sound in water is 1,500 m/s. How long would it take a sound wave to travel 250,000 km? (HINT: Use your dimensional analysis and metric conversion skills and remember:
K H D u d c m)

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?