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nirvana33 [79]
3 years ago
12

Explain why the car reaches a top speed even though the thrust Force remains constant at 3500N

Physics
1 answer:
wel3 years ago
4 0
<span>Air resistance will eventually equal the thrust force, so there is no resultant force meaning the car will stay at the same speed and can no longer accelerate. </span>
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The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s. what is the wavelength of radio waves emitted at 83.6 m
earnstyle [38]
Wavelength is c/f
3e8/83.6e6=3.589m
6 0
3 years ago
How are speed and velocity similar ?
Serhud [2]
I agree with you the answer is A

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Compare and contrast a series and parallel circuit. Give at least one way that they are alike and one way that they are differen
masya89 [10]
A parallel circuit has multiple paths from the energy source to the resistors (e.x., lightbulbs). If one bulb was to burn out, the rest would stay on, unlike a series circuit. If one bulb was to burn out, the circuit is no longer fully connected because there is only one path from the energy source to the resistors. But, despite these differences, they are similar in the way that they do have paths from the energy source to the resistors.
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Whenever you work a physics problem you should get into the habit of thinking about whether the answer is physically realistic.
Marta_Voda [28]

Answer:

Yes, the answer on <em>how far off the ground a typical truck is happens to be</em> physically realistic.

Explanation:

This concept could be explained with when someone is viewing a picture from a particular distance. The farther the person is from the picture, the smaller the details of the picture and the higher they picture would be unappriciated and vice versa.

Likewise the small truck on ground. <em>The distance off ground the truck is being viewed, the smaller the truck would become.</em>

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3 years ago
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A particle of mass 4.00 kg is attached to a spring with a force constant of 100 N/m. It is oscillating on a frictionless, horizo
jeka57 [31]

Answer:

a. A = 0.735 m

b. T = 0.73 s

c. ΔE = 120 J decrease

d. The missing energy has turned into interned energy in the completely inelastic collision

Explanation:

a.

4 kg * 10 m /s + 6 kg * 0 m/s = 10 kg* vmax

vmax = 4.0 m/s

¹/₂ * m * v²max = ¹/₂ * k * A²

m * v² = k * A²  ⇒ 10 kg * 4 m/s = 100 N/m * A²

A = √1.6 m ² = 1.26 m

At = 2.0 m - 1.26 m = 0.735 m

b.

T = 2π * √m / k ⇒ T = 2π * √4.0 kg / 100 N/m = 1.26 s

T = 2π *√ 10 / 100 *s² = 1.99 s

T = 1.99 s -1.26 s = 0.73 s

c.

E = ¹/₂ * m * v²max =

E₁ = ¹/₂ * 4.0 kg * 10² m/s = 200 J

E₂ = ¹/₂ * 10 * 4² = 80 J

200 J - 80 J  = 120 J decrease

d.

The missing energy has turned into interned energy in the completely inelastic collision

3 0
3 years ago
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