Answer:
0.5mv^2=50, v=5, 25/2×m=50, m=50×2/25, So, the answer is 4
Answer: WAIT WHATTTT i have that same test due today and the answer is in explanation
Explanation:
Bike, truck train. we are in the same school i think. Its imma say the incisal JMES Im Lusi i used to help in the library
The total mechanical energy of the ball is the sum of its potential energy U and its kinetic energy K, therefore:

so, the total mechanical energy of the basketball is 118 J.
Your answer is C) The year the element was discovered :)