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Stella [2.4K]
3 years ago
6

Does a car speedometer measure speed, velocity, or both?explain

Physics
1 answer:
Crank3 years ago
7 0

Answer:

Car speedometer only measures speed and doesn't give any information about direction. So yes to speed, no to velocity.

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An airplane accelerates from a velocity of 22 m/s to 40 m/s with an acceleration of 2 m/s2. How long does it
andrey2020 [161]

The time it takes the plane to change its velocity is 9s.

<h3>What is time?</h3>

Time can be defined the measured or measurable period during which an action, process, or condition exists or continues.

To calculate the time it takes the airplane to change its velocity, we use the formula below.

Formula:

  • t = (v-u)/a.......... Equation 1

Where:

  • a = Acceleration
  • v = Final velocity
  • u = Initial velocity
  • t = time

From the question,

  • v = 40 m/s
  • u = 22 m/s
  • a = 2 m/s²

Substitute these values into equation  1

  • t = (40-22)/2
  • t = 18/2
  • t = 9s

Hence, the time it takes the plane to change its velocity is 9s.

Learn more about time here: brainly.com/question/2854969

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1 year ago
A particle released during the fission of uranium-235 is a(n) ________
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<span>A particle released during the fission of uranium-235 is a "Neutron"</span>
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3 years ago
Visible light with a wavelength of 480 nm appears Question 33 options:
AlladinOne [14]
It would appear as blue

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What is the momentum of a 750 kg car traveling at a velocity of 25 m/s north?
olga_2 [115]

Answer:

18750 kg-m/s

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Momentum = mass x velocity 

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Consider a book that weighs 15 N at rest on a flat table. How many newtons of support does the table provide?
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<span>The support force is 15 N. The net force on the book is zero.</span>
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