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Artist 52 [7]
3 years ago
6

Explain why models are often used to study other planets ?

Physics
1 answer:
bonufazy [111]3 years ago
7 0
The models are used to represent what you are studying in this case would be a planet. A model of Saturn and its rings and the moons surrounding it would be fantastic to look at when you have no way of going there
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The peppered moth is a temperate species of night-flying moth. Peppered moth evolution is an example of population genetics and natural selection.
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The atomic mass of gold is 0.197 kg/mole. how many moles are in 0.566 kg of gold.
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Explanation:

0.566kg *(1mol/0.197 kg)= 2.87 mol gold

note how the units cancel out, if the units do not cancel out (kg/kg=1) then u did something wrong

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2 years ago
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A car starts from rest and accelerates uniformly for a five seconds along a straight road. If speed obtained by the car is 72 km
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Answer:

50 meters

Explanation:

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v_f=v_o+at

Since the car starts at rest, you can write the following equation:

20=0+a(5) \\\\a=20\div 5=4 m/s^2

Now that you have the acceleration, you can do this:

d=v_o+\dfrac{1}{2}at^2

Once again, there is no initial velocity:

d=\dfrac{1}{2}(4)(5)^2=2 \cdot 25=50m

Hope this helps!

8 0
3 years ago
Two resistors of 15 and 30 ω are connected in parallel. if the combination is connected in series with a 9. 0-v battery and a 20
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1 year ago
What is Newton's Second Law?
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An object's acceleration depends on its mass and on the net force acting on it.

Explanation:

Newton's second law states that the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.

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