Please help If something is shot straight up in the air at a speed of 70 m/s, how much time before it will hit the ground? (when I calculated it I got 14 is it right?) My following question is if the object from number 2 is shot up (70m/s) in the air how high will it get?

When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.