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WITCHER [35]
3 years ago
14

PLEASE HELP ASAP!!

Physics
2 answers:
Orlov [11]3 years ago
6 0

The answer is be because they do simplr jons for you and you dont have to worry about wasting energy on it

(mark me as brainliest)

Stells [14]3 years ago
3 0

Its B: reduce the amount of energy needed to do the work by putting the work onto something else

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lutik1710 [3]
B.
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olya-2409 [2.1K]
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4 years ago
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Calculate the correct fuse that should be used for a 230V,1KW electric hair dryer.​
zzz [600]

Answer: 4 A

Explanation:

Given

Voltage V=230\ V

Power P=1\ kW

Power is given by P=VI\\

Insert the values

\Rightarrow 1000=230\times I\\\\\Rightarrow I=\dfrac{1000}{230}\\\\\Rightarrow I=3.84\ A

The rating of fuse is slightly higher than the normal operating conditions. Therefore, a 4 A fuse should be used here.

6 0
3 years ago
The radius of the earth's very nearly circular orbit around the sun is 1.5 1011 m. find the magnitude of the earth's velocity, a
kotykmax [81]
The radius of Earth's circular trajectory is
R=1.5*10^{11} m
The time for the Earth to travel around the Sun is
t=365(days)*24(hours)*3600(seconds) =3.1536*10^7 (s)
Thus the velocity is velocity
v=2\pi R/t =2\pi *1.5*10^{11}/(3.1536*10^{7})=2.99*10^4 (m/s)
From this we can deduce the centripetal acceleration
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4 years ago
How does the see temperature affect hurricane formation?
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High level horizontal winds can prevent a hurricane from forming. These are called shear winds and they literally blow the top of the cyclone off, preventing it from forming properly.
8 0
3 years ago
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