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fenix001 [56]
3 years ago
5

A body's current radiation rate is 30% higher than it was an hour ago. Calculate the percentage by which your temperature increa

sed.
Physics
1 answer:
AlekseyPX3 years ago
5 0

Answer:

6.8%

Explanation:

According to Stefan-Boltzmann law, radiation is directly proportional with temperature raised to the fourth power:

P ∝ T⁴

Writing a proportion:

P₁ / P₂ = T₁⁴ / T₂⁴

1.3P / P = (T₁ / T₂)⁴

T₁ / T₂ = ∜1.3

T₁ = 1.068 T₂

The temperature increased by 6.8%.

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The height of the spaceship above the ground after 5 seconds is 1,127.5 m

The given parameters for the first question;

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  • acceleration of the car, a = - 9 m/s²
  • time of motion, t = 4 s

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(5)

The given parameters;

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  • velocity of spaceship, u = 150 m/s
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The height of the spaceship above the ground after 5 seconds is calculated as;

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Learn more here: brainly.com/question/24527971

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