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2 years ago

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Physics

2 answers:

Sedbober [7]2 years ago

7 0

Answer:

The word “conservation” refers to an amount that is unchanged. The total amount of energy in the universe remains the same. The energy in the universe is in balance.

Explanation:

Lelu [443]2 years ago

3 0

Sample Response: The word “conservation” refers to an amount that is unchanged. The total amount of energy in the universe remains the same. The energy in the universe is in balance.

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If you graph the average velocity (y-axis) vs. the elapsed time (x-axis), what

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a diagonal line on the graph

Explanation:

the slope would be constant at an increasing rate

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Dacia wants to know how to determine the polar coordinate θ. What should Katarina tell Dacia?

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Answer:

r = √ x² + y² and θ = tan⁻¹ y / x

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2 years ago

A 5.0 kg block hangs from the ceiling by a mass-less rope. A Second block with a mass of 10.0 kg is attached to the first block

gayaneshka [121]

The tension in the first and second rope are; 147 Newton and 98 Newton respectively.

Given the data in the question

Mass of first block; $m_1 = 5.0kg$

Mass of second block, $m_2 =10kg$

Tension on first rope; $T_1 =\ ?$

Tension on second rope; $T_2 =\ ?$

To find the Tension in each of the ropes, we make use of the equation from Newton's Second Laws of Motion:

$F = m\ *\ a$

Where F is the force, m is the mass of the object and a is the acceleration ( In this case the block is under gravity. Hence ''a" becomes acceleration due to gravity $g = 9.8m/s^2$ )

For the First Rope

Total mass hanging on it; $m_T = m_1 + m_2 = 5.0kg + 10.0kg = 15.0kg$

So Tension of the rope;

$F = m\ * \ g\\\\F = 15.0kg \ * 9.8m/s^2\\\\F = 147 kg.m/s^2\\\\F = 147N$

Therefore, the tension in the first rope is 147 Newton

For the Second Rope

Since only the block of mass 10kg is hang from the second, the tension in the second rope will be;

$F = m\ * \ g\\\\F = 10.0kg \ * 9.8m/s^2\\\\F = 98 kg.m/s^2\\\\F = 98N$

Therefore, the tension in the second rope is 98 Newton

Learn More, brainly.com/question/18288215

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