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Angelina_Jolie [31]
3 years ago
14

Define motion for science​

Physics
1 answer:
Alexeev081 [22]3 years ago
7 0

Answer:

"Motion is the act of moving or changing position. When studying motion there are many factors to look at. The main factors of motion revolve around force, speed, velocity, acceleration, and an object's mass".

Explanation:

*Hope this helps*

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Find the magnitude of the sum of two vectors; A is 5 km , and B is 7 , when the angle btween them is 120
Dimas [21]

Answer: 6.24 km

Explanation:

Given

The magnitude of the first vector(say) \left |  a\right |=5\ km

the magnitude of the second vector(say) \left |  b\right |=7\ km

the angle between them is 120^{\circ}

The resultant vector magnitude is given by

\left |  \vec{R}\right |=\sqrt{a^2+b^2+2ab\cos \theta}

\left |  \vec{R}\right |=\sqrt{5^2+7^2+2\times 5\times 7\cdot \cos 120^{\circ}}\\\left |  \vec{R}\right |=\sqrt{74-35}=\sqrt{39}\\\left |  \vec{R}\right |=6.24\ km

4 0
3 years ago
Does any one know the answer
valina [46]
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6 0
3 years ago
Melanie completes a long distance run at an average speed of 6 mph. If it takes her 3 hours, how far did she run?
Rama09 [41]

Answer:

18 miles

Explanation:

The average speed is 6 mph

Melanie ran for 3 hours

Speed × Time = Distance

So, 6 mph × 3 h = 18 miles

6 0
3 years ago
Which subatomic particle has a negative charge?
ValentinkaMS [17]

Answer:

C. \displaystyle electron

Explanation:

0 charge → <em>Neutron</em>

1 charge → <em>Proton</em>

I am joyous to assist you anytime.

4 0
3 years ago
The law of inertia to both moving and no moving objects. True or false
Zepler [3.9K]
True, the law of inertia effects both moving and non-moving objects.
3 0
3 years ago
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