Answer:
On one end of the electromagnetic spectrum are radio waves, which have wavelengths billions of times longer than those of visible light. On the other end of the spectrum are gamma rays, with wavelengths billions of times smaller than those of visible light.
Explanation:
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Here is the rule for see-saws here on Earth, and there is no reason
to expect that it doesn't work exactly the same anywhere else:
(weight) x (distance from the pivot) <u>on one side</u>
is equal to
(weight) x (distance from the pivot) <u>on the other side</u>.
That's why, when Dad and Tiny Tommy get on the see-saw, Dad sits
closer to the pivot and Tiny Tommy sits farther away from it.
(Dad's weight) x (short length) = (Tiny Tommy's weight) x (longer length).
So now we come to the strange beings on the alien planet.
There are three choices right away that both work:
<u>#1).</u>
(400 N) in the middle-seat, facing (200 N) in the end-seat.
(400) x (1) = (200) x (2)
<u>#2).</u>
(200 N) in the middle-seat, facing (100 N) in the end-seat.
(200) x (1) = (100) x (2)
<u>#3).</u>
On one side: (300 N) in the end-seat (300) x (2) = <u>600</u>
On the other side:
(400 N) in the middle-seat (400) x (1) = 400
and (100 N) in the end-seat (100) x (2) = 200
Total . . . . . . . . . . . . <u>600</u>
These are the only ones to be identified at Harvard . . . . . . .
There may be many others but they haven't been discarvard.
Answer:
P = I²r
Explanation:
ε= IR + Ir
where r is the internal resistance
Answer:
2m/s
Explanation:
Given parameters:
Mass of truck = 9000kg
Kinetic energy = 18000J
Unknown:
Speed = ?
Solution:
Kinetic energy is the energy due to the motion of a body;
K.E = 
mv²
So;
m is the mass
v is the speed
2 KE = mv²
2 x 18000 = 9000 x v²
v² = 4
v = 2m/s
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<span> the portion </span>of the electromagnetic spectrum<span> that is </span>visible <span>to the human eye. </span>Electromagnetic radiation<span> in this range of wavelengths is called </span>visible light<span> or simply </span>light<span>. A typical human eye will respond to wavelengths </span>from <span>about 390 to 700 nm.
</span>I hope i helped you.
