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Agata [3.3K]
3 years ago
7

What is the fourth planet from the sun and how many planets are there​

Physics
1 answer:
sesenic [268]3 years ago
6 0

Answer:

The fourth planet from the sun is Mars. There are 8 planets in our solar system. Its a source of debate of whether or not Pluto is a planet so there is 8 planets and not 9.

Explanation:

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A sample of an ideal gas is heated, and its kelvin temperature doubles. What happens to the average speed of the molecules in th
BabaBlast [244]

A sample of an ideal gas is heated, and its kelvin temperature doubles. The average speed of the molecules in the sample will increases by a factor of  \sqrt{2}

The root-mean square (RMS) velocity is the value of the square root of the sum of the squares of the stacking velocity values divided by the number of values. The RMS velocity is that of a wave through sub-surface layers of different interval velocities along a specific ray path.

Root mean square speed is a statistical measurement of speed.

The root mean square speed can be calculated as : V1 : \sqrt{3 R T / Mo}

if  temperature becomes double

let T1 is initial temperature

So ,  T2 = 2 * T1

now ,

Root mean square speed will be (V2) =  \sqrt{(3 R (2T)) / Mo}

                                                     = \sqrt{2} * \sqrt{3 R T / Mo}

                                                     = \sqrt{2} V1

Thus when temperature becomes double, the root mean square speed increases by a factor of  \sqrt{2}

To learn more about root mean square velocity here

brainly.com/question/13751940

#SPJ4

3 0
1 year ago
A heavy box is in the back of a truck. the truck is accelerating to the right. apply your analysis to the box.a) draw a motion d
Andru [333]

Explanation :

It is given that, a heavy box is in the back of a truck and the truck is accelerating to the right.

The description is shown in<em> figure 1</em>. Here, the forces that act on both box and the truck are the normal force, the frictional force and their weight mg.

The free body diagram is shown in <em>figure 2</em>. This shows the total forces            ( F = ma )acting on the truck. As a result, the truck will move in a forward direction.

Hence, this is the required explanation.

5 0
3 years ago
Read 2 more answers
What is the difference between vehicle borne and vector borne transmission?
Ugo [173]
Vehicle borne transmission is an indirect transmission of an infectious organism when the host of the organism is in contact with another potential host. Vector borne, on the other hand, happens when there is a transmitter involved causing the spread of the disease. This transmitter is called the vector.
3 0
4 years ago
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Discuss how the passage of time can affect the brain ? , comment on how human memory works or doesn't work. include memory kids
sergiy2304 [10]

Answer:

the stored memory undergoes important changes, as revealed by the behavioral outcomes of its retrieval.

Explanation:

6 0
3 years ago
1.45 L of 16°C water is placed in a refrigerator. The refrigerator's motor must supply an extra 10.7 W power to chill the water
Vika [28.1K]

Answer:

The coefficient of performance of the refrigerator is 2.251.

Explanation:

In this case, the coefficient of performance of the refrigerator (COP), no unit, is equal to the ratio of the heat rate received from the water to the power needed to work, that is:

COP = \frac{\dot Q_{L}}{\dot W} (1)

COP = \frac{\rho\cdot V\cdot c_{w}\cdot \Delta T}{\dot W \cdot \Delta t} (2)

Where:

\dot Q_{L} - Heat rate received from the water, in watts.

\dot W - Power, in watts.

\rho - Density of water, in kilograms per cubic meter.

V - Volume of water, in cubic meters.

c_{w} - Specific heat of water, in joules per kilogram-degree Celsius.

\Delta T - Temperature change, in degrees Celsius.

\Delta t - Cooling time, in seconds.

If we know that \rho = 1000\,\frac{kg}{m^{3}}, V = 1.45\times 10^{-3}\,m^{3}, c_{w} = 4187\,\frac{J}{kg\cdot ^{ \circ}C}, \Delta T = 10\,^{\circ}C, \dot W = 10.7\,W and \Delta t = 2520\,s, then the coefficient of refrigeration of the refrigerator is:

COP = \frac{\rho\cdot V\cdot c_{w}\cdot \Delta T}{\dot W \cdot \Delta t}

COP = 2.251

The coefficient of performance of the refrigerator is 2.251.

6 0
3 years ago
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