Answer:
100°heat
Explanation:
since when i calculate this and that, the answer is 100° heat.
sorry if it is inconvenient
When t=2, the ball has fallen d(2) = 16 (2²) = 64 feet .
When t=5, the ball has fallen d(5) = 16 (5²) = 400 feet .
Distance fallen from t=2 until t=5 is (400 - 64) = 336 feet.
Time period between t=2 until t=5 is (5 - 2) = 3 seconds.
Average speed of the ball from t=2 until t=5 is
(distance covered) / (time to cover the distance)
= 336 feet / 3 seconds = 112 feet per second.
That's what choice-C says.
F = ma
We have mass = 0.2kg
and acceleration = 20 m/s^2
So..
F = (0.2)(20)
F = 4 N
Weight = mass * gravity = 60 kg * 3.75 m/s² = 225 N
<span>Option D.</span>
no. energy is not created or destroyed, just transformed.
a hot light source is less efficient than a cold one ... heat is not light ...
