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4 years ago

The "steady state theory" suggested that the universe has always existed and maintains the same structure,

Physics

1 answer:

erastovalidia [21]4 years ago

4 0

The steady state theory was discredited by the discovery of cosmic background radiation.

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When is static electricity most noticeable and why.

denis23 [38]

Answer:

You've probably noticed that static electricity is more noticeable during the winter months. This is because the air is very dry. In the summer, the humidity and moisture in the air help electrons move more quickly, which makes it harder to build up a big static charge.

Explanation:

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3 years ago

What would happen to a satellite if it’s orbit speed was reduced by half? Also how about if it doubled?

weeeeeb [17]

For finding the orbital speed of the satellite we can say that the centripetal force for the circular motion of satellite is provided by the gravitational force of earth

so here we can say

$F_g = \frac{mv^2}{r}$

$\frac{GMm}{r^2} = \frac{mv^2}{r}$

now we will have

$v = \sqrt{\frac{GM}{r}}$

now here we will say that orbital speed of the satellite is inversely depends on the orbital radius

<em>So here if orbital speed is half then as per above relation we can say that orbital distance will become four times</em>

<em>Also we can say that if orbital speed is double then orbital distance will become one fourth of initial distance.</em>

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3 years ago

Which of the following is a result of sea floor spreading?

ANTONII [103]

Answer:

4-mid ocean ridge at divergent plate boundaries.

4 0

3 years ago

Read 2 more answers

Which statement describes how nuclear power generation systems work?

galben [10]

Answer:

c- heat for electricity generation process comes from nuclear fission

Explanation:

nuclear fission is splitting of atoms to release energy held at nucleus of atoms

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3 years ago

What is the direction of the electric field at the dot??

Georgia [21]

What is the magnitude of the electric field at the dot in the figure? (E=? V/m) What is the direction of the electric field at the dot in the figure? 1. to the left 2. to the right 3. upward 4. downward Thanks!

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3 years ago