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Kryger [21]
3 years ago
10

A body of mass 500kg moving at a speed of 10m/s reaches the speed of 50m/s in 20s.The force exerted is

Physics
1 answer:
Leona [35]3 years ago
6 0

Answer:

answer is 1000 N

formula used-

<em><u>F= m x (v-u/t)</u></em>

<em><u>mark</u></em><em><u> </u></em><em><u>th</u></em><em><u>is</u></em><em><u> as</u></em><em><u> brainliest</u></em><em><u>!</u></em>

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A rotating fan completes 1200 revolutions every minute. consider the tip of a blade, at a radius of 0.19 m. through what distanc
ser-zykov [4K]

The tip of the fan moves through the outer side of the circle.

So it moves a distance of perimeter of circle in one revolution.

Perimeter of circle = 2\pir, where r is the radius of circle.

In this case radius of circular motion = 0.19 meter

So perimeter of circle = 2\pi*0.19 = 0.38\pi = 1.194 m

So distance does the tip move in one revolution = 1.194 meter

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3 years ago
The bleeder is opened at a caliper and no brake fluid flows out. Technician A says that this is normal and that brake fluid shou
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Answer: b) Technician B only

Explanation:

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3 years ago
Which of the following has the largest momentum?
san4es73 [151]

Momentum = mass x velocity

Thus Option A is the correct answer

Momentum (dog)  = 10 kg x (0.447 x 30) m/s

= 134.1 Kg m/s

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tightrope has both low mass  and low speed, thus its momentum will be low


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3 years ago
A __________ provides a visual summary of the improvements that a data mining project provides on a binary classification proble
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Option (B)

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It describes the binary classification of the problems associated with the mining activity. This type of chart is commonly used to differentiate the lift scores for a variety of models, and picking the best one out of all.

Thus, the correct answer is option (B).

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a block that is 80 degrees is places next to a 20 degree block. the warmer block heats the cooler block by the process of... A)c
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Answer: option B: conduction.

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