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docker41 [41]
2 years ago
13

What are three examples of noncontact forces​

Physics
1 answer:
-Dominant- [34]2 years ago
8 0

Answer:

gravitational force electric force and magnetic force

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A fighter plane is flying overhead at mach 1.20. What angle does the wave front of the shock wave produced make relative to the
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Answer: 56.44°

Explanation:

<u>Given:</u>

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<em>Converting to SI Units (m/s):</em>

= (1.2 mach)(340 ms^-1 / 1 Mach)

u  = 408 m/s

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<u>Find:</u>

  • Angle the wave front of the shock wave relative to the plane's direction of motion, θ

We have, sinθ = speed of sound / speed of object

               sinθ = v / u

                   θ = sin^-1 (v / u)  

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                   θ = 56.44°

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Answer:If the object's speed increases.

Explanation:

If the object's speed increases, then its kinetic energy will increase. If the kinetic energy increases, the change in kinetic energy will be positive.

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Which of the following phenomena support the idea that light is a wave?
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Wave theory of light explains the phenomena of interference, diffraction, scattering, dispersion, polarisation etc. Complete solution: Around 1700, it was concluded by Newton that light was a group of particles. It was called corpuscular theory.

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