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konstantin123 [22]
3 years ago
10

Rachel is helping her younger brother replace a broken part in his toy ambulance. This part is responsible for converting electr

ic energy into light energy. Which of these devices should they use for the replacement?
bulb

buzzer

motor

switch
Physics
2 answers:
Lady bird [3.3K]3 years ago
7 0
"The Light Bulb" would be the answer of your question. It converts "Electrical energy" into "Light Energy". So, they should use this, for their replacement purpose in the toy.

In short, Option A is your correct answer.

Hope this helps!
Studentka2010 [4]3 years ago
5 0
The light bulb, it takes electrical energy and turns it into l<span>ight energy!</span>
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A tank is shaped like an upside-down square pyramid, with a base with sides that are 4 meters in length and a height of 12 meter
xeze [42]
Hello!

I included a link that might help you in terms of how the problem is broken down.

https://www.slader.com/discussion/question/a-tank-is-shaped-like-an-upside-down-square-pyramid-with-base-of-4m-by-4m-and-a-height-of-12m-how-fa/

However, the answer is:

The height increases at 3/2 m/sec
4 0
4 years ago
A 3.0 pF capacitor consists of two parallel plates that have surface charge densities of 1.0 nC/mm2 . If the potential between t
Archy [21]

Answer:

A=81mm^2

Explanation:

We know that for a capacitor Q=CV, where <em>Q </em>is the charge of one plate, <em>C</em> the capacitance and <em>V</em> the potential between the plates.

We also know that Q=\sigma A, since \sigma is the surface charge density and <em>A</em> the area of the plate (both equal in our case).

Putting all together:

A=\frac{CV}{\sigma}

Which for our values is:

A=\frac{(3\times10^{-12}F)(27\times10^3V)}{1\times10^{-9}C/mm^2}=81mm^2

Where we notice that the S.I. units combination FV/C must not have units (we can verify it directly from their definitions or we notice that mm^2 is enough to describe an area).

8 0
3 years ago
What is a metallic bond and how does it hold metals together?
Marysya12 [62]

Answer:

Force that holds atoms together in a metallic substance.

Explanation:

Hope this helps? C:

~Chiena

4 0
2 years ago
If Noah runs three laps around a 200 meter track in two minutes, what is the average speed of Noah in m/s?
devlian [24]
• 3 laps of 200 meter track = 600 meters
• 600 meters ran in 2 minutes
• 2 minutes = 120 seconds
• 600 meters / 120 seconds = 5 m/s on average
6 0
3 years ago
starting at a position of 0 m, if the man is moving at a constant velocity of 2 m/s, it will take seconds for him to reach a pos
Harman [31]

The calculated time is 6 seconds.

Time is defined by physicists as the flow of events from the past through the present and into the future. In essence, a system is timeless if it is unchanging. When describing events that take place in three-dimensional space, time can be thought of as the fourth dimension of reality. Even if time isn't directly connected to energy, it is undoubtedly connected to many other components of energy. For instance, the movement of energy across the universe can affect the direction of time (from the past to the future).

V= 2 m/s

d=12 m

t=?

we know that velocity=displacement / time

time= displacement / velocity

= 12/2

=6 seconds

the calculated time is 6 seconds.

Learn more about time here-

brainly.com/question/28050940

#SPJ4

4 0
1 year ago
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