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julsineya [31]
2 years ago
5

Express 2000km to metres​

Physics
1 answer:
satela [25.4K]2 years ago
8 0

Explanation:

pure definition :

kilo means 1000 (thousand).

so, a km or kilometer is 1000 m or meter.

2000 km = 2000 × 1000 m = 2,000,000 meters

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What is the ratio of the earth's gravitational force on you, to your gravitational force on the earth?
Natasha_Volkova [10]

Answer: 10%

Explanation:

n this case, if the earth' mass goes up by 10%, then the force of gravity on you, or your weight, will increase by the same amount, that is 10%

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3 years ago
Which of these is a measure of how much force is applied to an object from gas particle bouncing into it?
IrinaK [193]

Answer:

Pressure

Explanation:

The measure of how much force is applied to an object from gas particle bouncing into it is called pressure.

Pressure is defined as the force per unit area on a body.

Mathematically;

             Pressure  = \frac{Force}{Area}

The pressure of a gas is the combined force with which gas molecules bombard a unit area of the wall of the container. It is the sum of all tiny pushes on the wall of the container.

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A hockey puck on a frozen pond is given an initial speed of 20.0 m/s. If the puck always remains on the ice and slides 115 m bef
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Answer:

μ_k = 0.1773

Explanation:

We are given;

Initial velocity;u = 20 m/s

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v² = u² + 2as

Making a the subject, we have;

a = (v² - u²)/2s

Plugging relevant values;

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a = -400/230

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From the question, the only force acting on the puck in the x direction is the force of friction. Since friction always opposes motion, we see that:

F_k = −ma - - - (1)

We also know that F_k is defined by;

F_k = μ_k•N

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μ_k is coefficient of kinetic friction

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Thus,equating equation 1 and 2,we have;

−ma = μ_k•mg

m will cancel out to give;

-a = μ_k•g

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μ_k = - (-1.739/9.81)

μ_k = 0.1773

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Electrical shock is most likely to be fatal when the path of the current is through the heart.
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How do i find the number of leptons in an atom??
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Answer:

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