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3 years ago

What phenomenon reduces the adverse effects and pressure imposed by solar wind on earth?

Physics

1 answer:

inessss [21]3 years ago

3 0

Answer:

The earths magnetic field

Explanation:

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What is the mass of a cannonball if the force a force of 2500 N gives the cannonball an acceleration of 200 m/s^2??

vampirchik [111]

The answer is a.12.5kg because i just did the test and it was correct.

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3 years ago

Please solve this question

lesantik [10]

Answer:

88200 Pa

it is because

height =9m

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gravity = 9.8m/s(square)

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P=d×g×h

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3 years ago

Explain the origin of the magnitude designation for determining the brightness of stars. Why does it seem to go backward, with s

Mashcka [7]

Answer:

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4 years ago

Which of the following is equivalent to 2.5 meters

blsea [12.9K]

B is the correct answer for sure bro

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3 years ago

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43 kg bear slides, from rest, 15 m down a lodgepole pine tree, moving with a speed of 5.5 m/s just before hitting the ground. (a

olga2289 [7]

Answer:

-6327.45 Joules

650.375 Joules

378.47166 N

Explanation:

h = Height the bear slides from = 15 m

m = Mass of bear = 43 kg

g = Acceleration due to gravity = 9.81 m/s²

v = Velocity of bear = 5.5 m/s

f = Frictional force

Potential energy is given by

$P=mgh\\\Rightarrow P=43\times -9.81\times 15\\\Rightarrow P=-6327.45\ J$

Change that occurs in the gravitational potential energy of the bear-Earth system during the slide is -6327.45 Joules

Kinetic energy is given by

$K=\frac{1}{2}mv^2\\\Rightarrow K=\frac{1}{2}\times 43\times 5.5^2\\\Rightarrow K=650.375\ J$

Kinetic energy of the bear just before hitting the ground is 650.375 Joules

Change in total energy is given by

$\Delta E=fh=-(\Delta K+\Delta P)\\\Rightarrow fh=-(650.375-6327.45)\\\Rightarrow fh=5677.075\\\Rightarrow f=\frac{5677.075}{h}\\\Rightarrow f=\frac{5677.075}{15}\\\Rightarrow f=378.47166\ N$

The frictional force that acts on the sliding bear is 378.47166 N

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3 years ago

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What phenomenon reduces the adverse effects and pressure imposed by solar wind on earth?​

What phenomenon reduces the adverse effects and pressure imposed by solar wind on earth?