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jeka94
3 years ago
13

What do you know about a laser to predict its performance as a surgical tool? Give at least four factors and explain the signifi

cance of each briefly​
Physics
1 answer:
Akimi4 [234]3 years ago
5 0
Hehehehejwhdhmdhdidndjdh
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Neptune has a mass that is about 17 times the mass of Earth. The distance between the Sun and Neptune is about 30.1 times the di
marshall27 [118]

Answer: 0.0187 times the force between Sun and Earth.

The gravitational force between two massive bodies is directly proportional to their masses and inversely proportional to the square of distance between them.

F=G\frac {M_1M_2}{d^2}

where G is the gravitational constant.

Let,

The mass of the Sun be M_S

The mass of the Earth beM_E

The mass of the Neptune beM_N

The Distance between Sun and Earth be d_{SE}

The Distance between Sun and Neptune be d_{NE}

It is given that the mass of Neptune is 17 times mass of Earth.

\Rightarrow M_N=17M_E

The distance of Neptune from Sun is 30.1 times the distance of Earth from Sun.

\Rightarrow D_{SN}=30.1D_{SE}

The Force between Earth and Sun is F_{SE}=3.5\times10^{28}N

The Force between Neptune and Sun:

F_{SN}=G\frac{M_SM_N}{D_{SN}^2}=G\frac{M_S17M_E}{(30.1D_{SE})^2}=\frac {17}{30.1^2}G\frac{M_SM_E}{D_{SE}^2}=\frac {17}{30.1^2}F_{SE}=0.0187F_{SE}


5 0
3 years ago
Read 2 more answers
A wire is carrying current vertically downward. What is the direction of the force due to Earth's magnetic field on the wire
Vedmedyk [2.9K]

Answer:

<em>The direction of the force is towards the East.</em>

Explanation:

Using the right hand rule, the force on the current carrying conductor is east.

In the right hand rule, if the hand is held with the fingers pointed parallel to the palm representing the magnetic field, and the thumb held at right angle to the rest of the fingers representing the direction of the current, then the palm will push in the direction of the force.

In this case, the thumb is pointing downwards, with the fingers pointing north away from the body in the direction of the earth's magnetic field, the palm will push east.

5 0
3 years ago
A certain cable of an elevator is designed to exert a force of 4.5x 104 N. If the maximum acceleration that a loaded car can wit
meriva

Answer: 3,383.5 kg

Explanation:

from the question we were given the following

tension (T) =  4.5 x 10^4 N

maximum acceleration (a) = 3.5 m/s^2

acceleration due to gravity (g) = 9.8 m/s^2  ( it's a constant value )

mass of the car and its contents (m) = ?

we can get the mass of the car and it's contents from the formula for tension which is T = ma + mg

    T = m (a + g)

therefore m = T / (a+g)

m = (4.5 x 10^4 / ( 3.5 + 9.8 )

m = 3,383.5 kg

5 0
3 years ago
What is the charge of the negative sphere
tatyana61 [14]

Answer:

electrons

Explanation:

8 0
3 years ago
What is the name of the fine soil particles deposited by rivers?
Damm [24]

<span>Silt is like a dust in terms of size. It is solid, water like rivers transport, and deposits it. It is mostly made up of minerals and rock particles. It is form due to erosion of rocks. Therefore, the fine soil particles deposited by rivers is called Silt.</span>

5 0
3 years ago
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