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Solnce55 [7]
2 years ago
14

An object has a kinetic energy of 30 J and a mass of 44 kg , how fast is the object moving?

Physics
1 answer:
KengaRu [80]2 years ago
5 0

Answer:

KE = 19800 J

Explanation:

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4

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A uniform marble rolls down a symmetric bowl, starting from rest atthe top of the left side. The top of each side is a distanceh
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A. 5/7h

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C. See attachment below

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Find the attachment below for better understanding.

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3 years ago
A 10-N force is needed to move an object with a constant velocity of 5.0 m/s. What power must be delivered to the object by the
vagabundo [1.1K]

The power that must be delivered to the object by the force is 50 W

Power is defined as the rate of doing work. The power of an object in relation to the force and velocity is given by the following equation:

Power (P) = Force (F) × velocity (v)

P = F × v

From the question given above, the following data were obtained:

  • Force (F) = 10 N
  • Velocity (v) = 5 m/s
  • Power (P) =?

P = F × v

P = 10 × 5

<h3>P = 50 W </h3>

Thus, the power that must be delivered to the object by the force is 50 W

Learn more on power: brainly.com/question/19539420

5 0
2 years ago
The top of the syringe is a circle. You need to
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Answer:

3.60

Explanation:

8 0
3 years ago
Read 2 more answers
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sergij07 [2.7K]

Based on the nature of constructive interference,

none of the wave intersections will produce constructive interference.

<h3>What is constructive interference?</h3>

Constructive interference is interference that occurs when two waves of the same frequency amplitude and wavelength travelling in the same direction are superposed with the resultant effect of reinforcement of both waves to produce a larger wave.

Constructive interference occurs when the path difference between two identical waves at a point is:

  • delta s = n × wavelength

where n = 0, 1, 2, ...

For the various intersections:

  • 1.77 cm crest intersecting with a 0.65 cm crest; n = 1.77/0.65 = 2.7
  • A 1.2 mm crest intersecting with a 3.9 mm trough is destructive.
  • A 4.55 N trough intersecting with a 1.59 N trough; n = 4.55/1.59 = 2.8
  • A 0.44 inch trough intersecting with a 0.72 inch crest is destructive.
  • A 7.42 mm trough intersecting with a 1.93 mm trough; n = 7.42/1.93 = 3.8

Therefore, none of the wave intersections will produce constructive interference

Learn more about constructive interference at: brainly.com/question/1040831

4 0
2 years ago
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