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Hitman42 [59]
3 years ago
14

If you run the 100 m track at a velocity of 5.0 m/s, what is the time needed?

Physics
1 answer:
Tresset [83]3 years ago
8 0
100/5= 20, 20 seconds is the time needed.
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If the distance separating the objects is the same for each pair which pair will have the greatest gravitational force between T
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Answer:

ur 2 sqyares out of the cicle. how many squares to get back in for example.

Explanation:

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Convection is a mode of heat transfer for which types of objects? A. solids and liquids B. gases and solids C. gases only D. liq
Airida [17]

The correct answer to the question will be D). Liquids and gases.

EXPLANATION:

Convection is the type of mode of heat transfer in which there will be actual motion of particles from one part to the another part of a fluid.

In case of liquids, the particles which are present at the bottom of the container get heated up first and become lighter. The lighter particles will go up and the top heavier particles will move downward. Again the same process will be repeated. In this way, a convection cycle is produced.

For instance, heating of water.

In case of gases, same thing happens just like liquid. The air particles will be heated up first and becomes lighter. These heated particles will move upward. Due to this, an empty space will be created in that region. In order to occupy the empty space, the air will flow from another region which is at low temperature as compared to the heated region. Again, the same process will be repeated which will results into the formation of convection cycle .

Hence, convection occurs both in liquids and gases.



7 0
3 years ago
Read 2 more answers
How does a parallel circuit change when a branch is added?
Leto [7]
Answer: The total resistance increases, so the current in the circuit decreases.
3 0
2 years ago
An aseroid with a mass of 8.4x10^8 kg and a planet with a mass of 6.2x10^23 kg come close to each other by a distance of 8x10^5
N76 [4]

So, the force of gravity that the asteroid and the planet have on each other approximately

\boxed{\sf{5.43 \times 10^{10} \: N}}

<h3>Introduction</h3>

Hi ! Now, I will help to discuss about the gravitational force between two objects. We already know that <u>gravitational force occurs when two or more objects interact with each other at a certain distance and generally orbit each other to their center of mass</u>. For the gravitational force between two objects, it can be calculated using the following formula :

\boxed{\sf{\bold{F = G \times \frac{m_1 \times m_2}{r^2}}}}

With the following condition :

  • F = gravitational force (N)
  • G = gravity constant ≈ \sf{6.67 \times 10^{-11}} N.m²/kg²
  • \sf{m_1} = mass of the first object (kg)
  • \sf{m_2} = mass of the second object (kg)
  • r = distance between two objects (m)

<h3>Problem Solving</h3>

We know that :

  • G = gravity constant ≈ \sf{6.67 \times 10^{-11}} N.m²/kg²
  • \sf{m_1} = mass of the first object = \sf{8.4 \times 10^8} kg.
  • \sf{m_2} = mass of the second object = \sf{6.2 \times 10^{23}} kg.
  • r = distance between two objects = \sf{8 \times 10^5}

What was asked :

  • F = gravitational force = ... N

Step by step :

\sf{F = G \times \frac{m_1 \times m_2}{r^2}}

\sf{F = 6.67 \times 10^{-11} \times \frac{8.4 \cdot 10^8 \times 6.2 \cdot 10^{23}}{(8 \times 10^5)^2}}

\sf{F = \frac{347.374 \times 10^{-11 + 8 + 23}}{64 \times 10^10}}

\sf{F \approx  5.43 \times 10^{20 - 10}}

\boxed{\sf{F \approx 5.43 \times 10^{10} \: N}}

<h3>Conclusion</h3>

So, the force of gravity that the asteroid and the planet have on each other approximately

\boxed{\sf{5.43 \times 10^{10} \: N}}

<h3>See More</h3>

Gravity is a thing has depends on ... brainly.com/question/26485200

7 0
2 years ago
A football is kicked from the ground with a speed of 26.43 B at an angle of 65.43°. What is the vertical component of the initia
juin [17]

Answer:

= 24.04  B  

Explanation:

Vertical component is found by

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