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jekas [21]
4 years ago
5

The movement of material due to diffreneces in density is called

Physics
1 answer:
timofeeve [1]4 years ago
7 0
It is called convection.
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A test charge of +3 µC is at a point P where the electric field due to the other charges is directed to the right and has a magn
umka2103 [35]

Answer:

Electric field will remain same.

Explanation:

Given that

At initial condition ,charge q = +3μ C

Electric field E = 4106 N/c

As we know that

Electric field due to charge q

E=\dfrac{kq}{r^2}  

Now when charge is replaced by new charge q'= -3μ C

From the expression of electric field we can say that electric field will remain same from same quantity of electric charge.

So we can say that electric field will remain same.

5 0
4 years ago
A person wants to make a metronome for music practice. He uses a 35-g object attached to a spring to serve as the time standard.
alukav5142 [94]

To develop this problem it will be necessary to apply the concepts related to the frequency of a spring mass system, for which it is necessary that its mathematical function is described as

f = \frac{1}{2\pi} \sqrt{\frac{k}{m}}

Here,

k = Spring constant

m = Mass

Our values are given as,

m = 35g = 35*10^{-3}kg

f = 1 Hz

Rearranging to find the spring constant we have that,

k = (2\pi f \sqrt{m})^2

k = 4\pi^2 f^2 m

k = (4) (\pi)^2 (1) (35*10^{-3})

k = 1.38N/m

Therefore the spring constant is 1.38N/m

7 0
4 years ago
10 points and brainlyest if possible and right.
Delicious77 [7]
THE answer the table is holding the book up would be a normal force 
6 0
4 years ago
Why is venus the hottest planet in the solar system
mr Goodwill [35]

Venus is the hottest world in the solar system. Although Venus is not the planet closest to the sun, its dense atmosphere traps heat in a runaway version of the greenhouse effect that warms Earth.

8 0
3 years ago
Read 2 more answers
Suppose that you measure the length of a spaceship, at rest relative to you, to be 400 m. How long will you measure it to be if
Rashid [163]

Answer:

<em>264 m</em>

<em></em>

Explanation:

The complete question is

Suppose that you measure the length of a spaceship, at rest relative to you, to be 400 m. How long will you measure it to be if it flies past you at a speed of v = 0.75c

using the length contraction relationship,

l = l_{0} \sqrt{1 - \beta ^{2}  }

where \beta = \frac{v}{c}

l is the relativistic length

l_{0} is the actual length = 400 m

v is the velocity of the spaceship

c is the speed of light

since v = 0.75c

v/c = 0.75

substituting, we have

l = 400 * \sqrt{1 - 0.75 ^{2}  } = 400 x 0.66 = <em>264 m</em>

5 0
3 years ago
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