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3 years ago

Describe Newton's law of gravitation and its application?

Physics

1 answer:

Jlenok [28]3 years ago

4 0

Answer:

Newton's law of gravitation states that every object in this universe attracts every other object with a force called gravity,

when the distance between the two object is increased the gravitational force decreases by its square,

and when the mass an object increases the gravitational force also increases,

therefore, gravitational force is directly proportional to the mass of the two objects and is square inversely proportional to distance between them.

Hope it helped u,

pls mark as the brainliest and put thanks

^_^

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a net force of 100 newtons is applied to a wagon for 5 seconds. This causes the wagon to undergo a change in momentum of

marin [14]

J = ft = 100N*5s = 500Ns

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3 years ago

why is the freezer compartment of a refrigerator kept at the top in terms of conduction convection and radiation

Ulleksa [173]

Answer:

The freezer compartment is at the top of a fridge because cool air sinks. (convection current)

Explanation:

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2 years ago

An electron traveling horizontally to the right enters a region where a uniform electric field is directed downward. What is the

astraxan [27]

Answer:

Upward

Explanation:

For charged particles immersed in an electric field:

- if the particle is positively charged, the direction of the force is the same as the direction of the electric field

- if the particle is negatively charged, the direction of the force is opposite to the direction of the electric field

In this problem, we have an electron - so a negatively charged particle - so the direction of the force is opposite to that of the electric field.

Since the electric field is directed downward, therefore, the electric force on the electron will be upward.

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3 years ago

Why is a control group important?

Likurg_2 [28]

Answer:

A. It changes all the time, allowing us to see if the experimental group stays the same.

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I hope this help

I hope this is correct

4 0

4 years ago

The charge of an electron is -1.60x10-19 C. A current of 1 A flows in a wire carried by electrons. How many electrons pass throu

faltersainse [42]

Answer: $6.241\times 10^{18}$ electrons pass through a cross section of the wire each second.

Explanation:

According to mole concept:

1 mole of an atom contains $6.022\times 10^{23}$ number of particles.

Given : Charge on 1 electron = $1.6\times 10^{-19}C$

Charge on 1 mole of electrons = $1.6\times 10^{-19}\times 6.022\times 10^{23}=96500C$

To calculate the charge passed we use the equation:

$I=\frac{q}{t}$

where,

I = current passed = 1 A

q = total charge = ?

t = time required = 1 sec

Putting values in above equation, we get:

$1A=\frac{q}{1s}\\\\q=1A\times 1s=1C$

When 96500C of electricity is passed , the electrons passed = $6.022\times 10^{23}$

1 C of electricity is passed , the electrons passed = $\frac{6.022\times 10^{23}}{96500}\times 1C=6.241\times 10^{18}$

Hence, $6.241\times 10^{18}$ electrons pass through a cross section of the wire each second.

4 0

3 years ago

Describe Newton's law of gravitation and its application?​

Describe Newton's law of gravitation and its application?