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svlad2 [7]
3 years ago
10

State the name given to the energy that is needed to melt the ice cube: latent __________.

Physics
1 answer:
Vaselesa [24]3 years ago
5 0

Answer:

Explanation: heat of fusion

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A 55 kg track and field athlete has an average power output of 5.4 kW during the 200 meter dash. How quickly did she finish the
olga_2 [115]

The time taken for the athlete to finish the race is 20 s (Option A)

<h3>What is power? </h3>

Power is simply defined as the rate at which work is done. It can be expressed mathematically as

Power (P) = work (W) / time (t)

But

Work = weight × distance

Therefore,

Power = (weight × distance ) / time

<h3>How to determine the time </h3>
  • Mass (m) = 55 Kg
  • Acceleration due to gravity (g) = 9.8 m/s²
  • Weight = mg = 55 × 9.8 = 539 N
  • Power (P) = 5.4 KW = 5.4 × 1000 = 5400 W
  • Distance (d) = 200 m
  • Time (t) =?

Power = (weight × distance ) / time

5400 = (539 × 200) / t

5400 = 107800 / t

Cross multiply

5400 × t = 107800

Divide both side by 5400

t = 107800 / 5400

t = 20 s

Learn more about power:

brainly.com/question/5684937

#SPJ1

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1 year ago
Accourding to biopsychologists a temperament ()
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A persons or animals nature, especially as it permanently affects their behavior
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3 years ago
The speed that light travels :
OLga [1]
I think it might be C.
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2 years ago
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What is happening in the diagram?
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In the diagram, the ship send sound(?) waves to the water, to determine if there is anything there. If there is something like a sunken ship shown in the diagram, the waves return in a shorter time hence you can understand if theres something or now. This is the principle of radars and sonars.
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HELP ME PLSSSS!!!!!!!
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Answer:

A

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A. The molecules that make up olive oil are longer than those that

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