A ball is shot up from the ground with an initial vertical velocity of 30
m/s. What is the final velocity of the ball right before it returns to the
ground?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h