Answer:
A. 50.7 J
B. 33.18 J
Explanation:
At the start of the motion the kinetic energy of the ball would be
When the ball gets to the highest point, vertical velocity must be 0, only horizontal velocity contributes to the kinetic energy. Since air resistant can be neglected, horizontal energy is preserved since the start
So the kinetic energy at this point is
An insulator is not a good source for heat or electricity to move through. Wood is an example of an insulator. The opposite of insulator is conductor. An example of a conductor is metal.
Answer:
A digital signal picks up noise, but is still reliable.
Explanation:
Answer:
35 Joules
Explanation:
Applying
Input Energy(Q) = Useful energy output(U)+Wasted Energy(W)
Q = U+W.............................. Equation 1
Make U the subject of the equation
U = Q-W................... Equation 2
From the question,
Given: Q = 120 Joules, W = 85 Joules
Substitute these values into equation 2
U = 120-85
U = 35 Joules
Answer: It’s False hope this helps
Explanation:
