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olasank [31]
3 years ago
11

What should you do if you see lightning while you are outside exercising? Head inside Stay under a tree Lie in the grass Move qu

ickly
Physics
2 answers:
iris [78.8K]3 years ago
8 0

Answer:

The answer is C. I hope it helped you

Explanation:

Arada [10]3 years ago
5 0
If you are under a tree, they kind of act like lightning rods, so stay away from trees, so roll in dat grass. Fun Fact: Lightning comes from the ground more than it comes from the sky, its like when you rub a blanket on your head, some lil' lightnings come from your head while a little come from the blanket, its the same with grass and clouds only, 10000 volts stronger and deadly.
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What in earth's atmosphere helps most to absorb uvb ultraviolet light from the sun?
Whitepunk [10]
The Ozone layer in the atmosphere absorbs the UV rays

Hope it helps!
4 0
3 years ago
A 7 kg object attached to a horizontal string moves with constant speed in a circle on a frictionless horizontal surface. The ki
Marizza181 [45]

Answer:

Explanation:

Given

mass of object m=7 kg

kinetic Energy k=36\ J

Tension in string T=326\ N

mass is moving in a horizontal circle so tension is providing the centripetal acceleration

therefore T=\frac{mv^2}{r}----1

where r=radius of circle

kinetic energy of particle k=\frac{1}{2}mv^2----2

divide 1 and 2 we get

\frac{T}{k}=\frac{\frac{mv^2}{r}}{\frac{1}{2}mv^2}

\frac{T}{k}=\frac{2}{r}

r=\frac{2k}{T}=\frac{2\times 36}{326}

r=0.2208\ m

   

8 0
3 years ago
Do balanced forces change an objects motion
meriva

If the group of all forces acting on an object is balanced,
then the effect of all of them is the same as if there were
no forces at all on the object.  In that case, the object
continues moving in a straight line at a constant speed.

8 0
3 years ago
Professor Frank Nabarro insists that all senior physics majors take his notorious physics aptitude test. The test is so tough th
yulyashka [42]

Answer:

0.5504

Explanation:

We can use Bay's theorem to solve this question

P( No physics career/fail) = P(No Physics career and fail)/P(Fail)

= P( Fail/ No physics career)×P( no physics career)/P( fail)

=\frac{0.3\times1}{(0.7\times0.35)+(0.3\times1)}

=0.5504

8 0
3 years ago
An object weighs 200N, what is its mass?​
fredd [130]

Answer:

kg

Explanation:

the highr and jebad to kilogram mizans

3 0
2 years ago
Read 2 more answers
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