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lbvjy [14]
2 years ago
5

The conversion of thermal energy into mechanical energy requires

Physics
1 answer:
emmainna [20.7K]2 years ago
8 0
Temperature difference is required, so i’m guessing - a. thermometer - would be required to check that temperature.
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The average speed of a nitrogen molecule in air is about 6.70×102 m/s, and its mass is 4.68×10-26 kg.
Otrada [13]

Answer:

a)   a = 3.06 10¹⁵ m / s , b)    F= 1.43  10⁻¹⁰ N, c)    F_total = 14.32 10⁻²⁶ N

Explanation:

This exercise will average solve using the moment relationship.

a ) let's use the relationship between momentum and momentum

          I = ∫ F dt = Δp

          F t = m v_{f} - m v₀

          F = m (v_{f} -v₀o) / t

 in the exercise indicates that the speed module is the same, but in the opposite direction

          F = m (-2v) / t

if we use Newton's second law

          F = m a

we substitute

            - 2 mv / t = m a

            a = - 2 v / t

let's calculate

            a = - 2 4.59 10²/3 10⁻¹³

            a = 3.06 10¹⁵ m / s

b)      F= m a

        F= 4.68 10⁻²⁶ 3.06 10¹⁵

        F= 1.43  10⁻¹⁰ N

c) if we hit the wall for 1015 each exerts a force F

            F_total = n F

            F_total = n m a

            F_total = 10¹⁵  4.68 10⁻²⁶ 3.06 10¹⁵

            F_total = 14.32 10⁻²⁶ N

8 0
3 years ago
Atoms in Group 18 elements are inert (chemically unreactive) because ___________________________. A they combined to form molecu
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When you say full valence shell, are you talking about a valence electron shell?

I am learning about atoms and i know a little bit

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2 years ago
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Light striking a mirror at a 50° angle will be reflected at an angle _____.
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Equal to 50


law of reflection: angle of incidence equals angle of reflection
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Town A lies 15 km north of town B. Town C lies 10 km west of town A. A small plane flies directly from town B to town C. What is
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Answer:

the correct answer is b

Explanation:

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3 years ago
2) A constant net force acts on an object. Describe the motion of the object.?
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Constant acceleration
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2 years ago
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