F a light bulb produces 60.0 J of electrical energy and is 45% efficient, how much energy does it use?
2 answers:
You might be interested in
Answer:
<h3>The answer is 7 Pa</h3>Explanation:
The pressure transmitted in the hydraulic system can be found by using the formula
f is the force
a is the area
From the question we have
We have the final answer as
<h3>7 Pa</h3>Hope this helps you
Answer:
8.2 m/s upward
Explanation:
The motion of the ball is a free fall motion, so we can use the suvat equation:
where:
v is the final velocity
u is the initial velocity
a is the acceleration
t is the time
Choosing upward as positive direction:
(acceleration of gravity)
t = 1.5 s
Solving for u, we find the initial velocity:
And the direction is upward.