A tennis ball is thrown vertically upward with an initial velocity of +8.0 m/s. a. What will the ball's speed be when it returns to its starting point?
b. How long will the ball take to reach its starting point?

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest

What is the frequency if a wave that pases a given pount 22 times in 2 seconds