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Ede4ka [16]
3 years ago
10

What carries energy

Physics
2 answers:
Fed [463]3 years ago
5 0
Yes, electromagnetic waves do carry energy. In fact, every wave carries energy: that is, potential energy.
Brums [2.3K]3 years ago
4 0
Waves and matter. Some waves can move through matter while others cannot. ... Sound waves, on the other hand, cannot move through empty space. Inherently, all waves carry energy from one place to another<span> when they move.</span>
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yulyashka [42]

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Explanation:

5 0
3 years ago
How long would it take an object to reach the ground from the top of a building that is 470 feet tall? Round to the nearest tent
Zinaida [17]

Answer:

It would take the object 5.4 s to reach the ground.

Explanation:

Hi there!

The equation of the height of a free-falling object at any given time, neglecting air resistance, is the following:

h = h0 + v0 · t + 1/2 · g · t²

Where:

h = height of the object at time t.

h0 = initial height.

v0 = initial velocity.

g = acceleration due to gravity (-32.2 ft/s² considering the upward direction as positive).

t = time

Let´s supose that the object is dropped and not thrown so that v0 = 0. Then:

h = h0 + 1/2 · g · t²

We have to find the time at which h = 0:

0 = 470 ft - 1/2 · 32.2 ft/s² · t²

Solving for t:

-470 ft = -16.1 ft/s² · t²

-470 ft / -16.1 ft/s² = t²

t = 5.4 s

3 0
3 years ago
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