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Goshia [24]
3 years ago
9

True or false , if acceleration is negative speed is decreasing

Physics
1 answer:
laiz [17]3 years ago
3 0
Personally based on my knowledge of physics I believe this is true
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A car travelling at 20 m/s due north along the highway makes a right turn on to a side road that heads due east. It takes 50 s f
Marrrta [24]

Answer:  initial velocity: 20 m/s

                time taken to complete the turn: 50s

               final velocity: 15 m/s

average acceleration= final velocity-initial velocity/time taken - 0s( 0 is taken here as there was no initial time)

           = 15-20/50-0

           = -5/50= -0.1 ms^2

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3 years ago
Define frequency in terms of a wave
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Answer:

Explanation:

For a wave, the speed is the distance traveled by a given point on the wave (such as a crest) in a given period of time. So while wave frequency refers to the number of cycles occurring per second, wave speed refers to the meters traveled per second

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Three resistors are connected into the section of a circuit described by the diagram. At which labeled point or points of the ci
devlian [24]

Answer: Point Z only

Explanation: Just took the quiz

6 0
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Nataly_w [17]

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Choose/Pick your topic which is required for your target audience.  Do some research and collect the needed information for your selected topic.  Organize all important topic related facts & stats in a logical way.  Write all your reader’s needs to influence & help them.  Make your views unique & specific. Read, Revise, and Repeat.  Cross-check the grammatical mistakes & avoid unnecessary & repetitive lines

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4 0
2 years ago
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Why is the following situation impossible? Two identical dust particles of mass 1.00 µg are floating in empty space, far from an
Igoryamba

Answer:

This is a conceptual problem so I will try my best to explain the impossible scenario. First of all the two dust particles ara virtually exempt from any external forces and at rest with respect to each other. This could theoretically happen even if it's difficult for that to happen. The problem is that each of the particles have an electric charge which are equal in magnitude and sign. Thus each particle should feel the presence of the other via a force. The forces felt by the particles are equal and opposite facing away from each other so both charges have a net acceleration according to Newton's second law because of the presence of a force in each particle:

a=\frac{F}{m}

Having seen Newton's second law it should be clear that the particles are actually moving away from each other and will not remain at rest with respect to each other. This is in contradiction with the last statement in the problem.

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2 years ago
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