PLEASE HELP NEED EXPLANATION TOO Volleyball: Court dimensions: 18m long - 9m wide.
Net height: 2.23m for women
-If a volleyball is served with a diagonal velocity of 10m/s at an angle of 42◦ from the horizontal.
a. Does it hit the net?
b. Find out if it lands in the court or not.
c. What is the final (diagonal) velocity of the ball?
d. What is the landing angle of the ball?

What are chlorofluorocarbons and what impact do they have on the atmosphere?

Could someone . i have tried to solve myself but my calculation is off

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?