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3 years ago

A cat becomes negatively charged when it is brushed. How does the electric charge on the brush compare to the charge on the cat?

Physics

1 answer:

Karolina [17]3 years ago

4 0

Answer:

The electric charge on the brush is now positive. This means that if the object it light enough (like a balloon) it would stick to the wall.

This is fun science actually.

Explanation:

May I have brainliest please? :)

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Why are antennas needed for radio, television, and cell phone transmission>

erastova [34]

Answer:

A.without a long antenna, 're signal will not travel far

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3 years ago

What is the difference in the positioning of the Sun, Earth and moon for a lunar eclipse versus a full moon?

Lady bird [3.3K]

When the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth. When Earth passes directly between Sun and Moon, its shadow creates a lunar eclipse. Lunar eclipses can only happen when the Moon is opposite the Sun in the sky, a monthly occurrence we know as a full Moon.

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3 years ago

An object with a mass of 3 kg has a momentum of 75 kg.m/s. What is its velocity?

tiny-mole [99]

Answer:

25m/s

Explanation:

p=mv

75 = 3v

v = 75/3

v = 25 m/s

If you want to verify your answer, just insert the value of v to the equation.

8 0

3 years ago

A student observes that for the same net force heavier objects accelerate less which statement describes the correct conclusion?

rodikova [14]

Answer: A decrease in acceleration causes the mass to increase.

Explanation:

Let's rewrite this as:

"For a constant force F, we can see that heavier objects accelerate less"

Then, as the mass increases, the acceleration of the object decreases.

This is known as an inverse relationship between acceleration and mass.

By second Newton's law we have that:

F = m*a

Force equals mass times acceleration.

So if the force is constant, we can write it as:

a = F/m.

In this equation, we can see that, if the acceleration decreases and F remains constant, then the mass m must increase (because it is in the denominator)

Then the correct option is:

A decrease in acceleration causes the mass to increase.

4 0

3 years ago

Read 2 more answers

Suppose you are asked to find 91,321,972×0.007004. Doing a quick estimate by rounding the numbers in scientific notation, what v

slamgirl [31]

Answer:

Product, $P=9.1321972\times 10^7\times 7.004\times 10^{-3}$