Answer:
Explanation:
The equations for the horizontal and vertical position of the ball are, respectivelly:
By isolating each trigonometric component and summing each equation:
The positive real roots are:
The needed angle is:
I THINK it is C. KEYWORD is THINK
Answer:
It is just a theory that multi verse exists. Researchers have found tracers of mirror particles which could only be from other universe.
Explanation:
Its said above.
<span>1. The potential energy is 34.3J
2. The kinetic energy is 61,875J.
3. A 0.5 kg ball is at the top of a 20 meter tall hill.
a) What is the ball's kinetic energy ? The ball's kinetic energy is zero.
b) what is the ball's potential energy ? The ball's potential energy is 98.1J.
c) what is the ball's mechanical energy ? The ball's mechanical energy is 98.1J.
4. 2.0 kg toy has been thrown in the air it is 1.5m above the ground and is moving up at 3.0 m/s
a) What is the toy's kinetic energy ? The toy's kinetic energy is 9J.
b) what is the toy's potential energy ? The toy's potential energy is 29.43J.
c) what is the toy's mechanical energy ? The toy's mechanical energy s 38.43J.</span>