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Setler [38]
3 years ago
9

if a car is traveling at an average speed of 60 kilometers per hour, how long does it take to travel 12 kilometers?

Physics
1 answer:
VashaNatasha [74]3 years ago
5 0
Im sure its twelve minutes
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An exoplanet with one half of Earth's mass and 50% of Earth's radius is discovered.
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Answer:

The space cadet that weighs 800 N on Earth will weigh 1,600 N on the exoplanet

Explanation:

The given parameters are;

The mass of the exoplanet = 1/2×The mass of the Earth, M = 1/2 × M

The radius of the exoplanet = 50% of the radius of the Earth = 1/2 × The Earth's radius, R = 50/100 × R = 1/2 × R

The weight of the cadet on Earth = 800 N

The \ weight, W  =G\dfrac{M \times m}{R^{2}} = 800 \ N

Therefore, for the weight of the cadet on the exoplanet, W₁, we have;

W_1   =G\dfrac{\dfrac{M}{2}  \times m}{ \left ( \dfrac{R}{2} \right ) ^{2}} = G\dfrac{\dfrac{M}{2}  \times m \times 4}{ R ^{2}} = 2 \times G \times  \dfrac{M \times m}{R^{2}} = 2 \times 800 \, N = 1,600 \, N

The weight of a space cadet on the exoplanet, that weighs 800 N on Earth = 1,600 N.

7 0
3 years ago
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REY [17]

Answer:

Second bubble

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There are several ways to model a compound one type of model is shown ?what is the chemical formula for the molecule modeled?
s2008m [1.1K]

The is organic compound with the correct chemical formula C4H9O2.

<h3>What is a model?</h3>

A model is a representation of reality. A model serves the purpose of prediction as well as explanation.

Looking at the model of the molecule we can see that it is the organic compound with the correct chemical formula C4H9O2. The molecule is shown in the image attached to this answer.

Missing parts:

There are several ways to model a compound. One type of model is shown.

What is the chemical formula for the molecule represented by the model?

CHO

C4H9O2

C4H8O

C3H8O2

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2 years ago
When not in a vacuum, what force causes objects in freefall to fall at different speeds??
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Hi,

My best answer would be Gravity. Is it a multiple choice question? Or is it an essay question. 
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3 years ago
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