Answer:
B) 6 W
Explanation:
First of all, we need to find the work done by the force. This is given by
where
F = 4 N is the magnitude of the force
d = 3 m is the distance through which the force is applied
Substituting,
Now we can find the power, which is given by
where
W = 12 J is the work done by the force
t = 2 s is the time taken
Substituting,
Answer:
427.196 m
Explanation:
u = Initial velocity = 312 m/s
t = Time = 1.4 s
s = Displacement
a = -9.8 m/s² (because the bullet is decelerating as the bullet is going straight up)
Equation of motion
So, Displacement at 1.4 seconds is 427.196 m
Geothermal energy.
Electromagnetic energy originates at the sun (think UV rays; they are part of the electromagnetic spectrum). Electrical energy technically can be anywhere, as long as there are positive and negative charges. Mechanical energy is like a generator or an engine; there is always something working to get things done/made.
I hope this answer and these explanations helped!
<span>The spectrum that is emitted is done so through releasing electromagnetic radiation into the atmosphere. For example, when hydrogen has electricity passed through it emits blue light.</span>