potential is equal to mgh
we know that mass = 1220 kg
g=9.8 0r 10
400=1220*9.8*x
400=11956x
x=400/11956
Answer:2t
Explanation:
Given
Jason throwing watermelon at speed v and it spend t time in air
time to reach max height

0=v-gt'

and time to reach bottom is also t'
t=2t'

For guy throws his watermelon at speed 2v
So total time in air will be


t''=2t
The answer is A. Energy from <span>various energy sources, such as wind or from burning fossil fuels, is used to spin the blades of the turbine. The turbine then powers a generator, which produces electricity.
Works on simple principle of the turbine blades translation of energy sources causing the mechanical spin of the blades which is connected to a rotor which spins the main shaft of generator thus producing electricity.</span>
Answer:
(C)Direct kick
Explanation:
In a game of soccer (foot-ball) there are lots of rules involved in the game and there is penalty for each of the rules violated. Some of the rules include penalty kick, free kick, throw in, goal kick etc.
Free kick is of two types; direct kick and indirect kick.
Direct kick is awarded when a player outside 18 yards box violently or dangerously charges a opponent.
Indirect kick can be awarded when a goalkeeper inside 18 yards box commits certain offenses.
Therefore, the correction option is (C)Direct kick
I think it's D. Options C and D are true. The graph shows an increase in speed from points 6 to 12, which means Option C is true. It shows an even bigger increase in speed from points 24 to 30, and since bikes go faster when traveling downhill, I would think that Option D was correct as well.