3 years ago

HELPPPPPURGENT PLEASE NB 35

Physics

1 answer:

kramer3 years ago

8 0

Good luck! Here to cheer you on ! Do a good job

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if motorbike can travel 90 kilometre on 2 litre of petrol find the distance it can travel on 5 litre of petrol

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The motor bike can travel 225 kilometers on 5 liters of petrol

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2 years ago

the kinetic energy of an object with mass m moving with a velocity of 5 m/s is 25 j what will be its kinetic energy when its vel

Dmitriy789 [7]

Answer:

100 J, 225 J

Explanation:

The kinetic energy of an object is given by:

$K=\frac{1}{2}mv^2$

where

m is the mass of the object

v is the velocity of the object

In this problem, the initial kinetic energy of the object is

K = 25 J

Then, the velocity is doubled, which means

v' = 2v

Therefore, the new kinetic energy will be

$K'=\frac{1}{2}m(2v)^2 = 4(\frac{1}{2}mv^2)=4K$

Therefore, the kinetic energy has quadrupled:

$K' = 4(25)=100 J$

Later, the velocity is tripled, which means

v'' = 3v

Therefore, the new kinetic energy will be

$K''=\frac{1}{2}m(3v)^2 = 9(\frac{1}{2}mv^2)=9K$

Therefore, the kinetic energy has increased by a factor of 9:

$K' = 9(25)=225 J$

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3 years ago

Sallie's recipe calls for a total of cups of flour to make biscuits. It says to use cup of flour from the total for rolling out

zloy xaker [14]

Answer:

Answer is D

Explanation:

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3 years ago

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77julia77 [94]

I’m pretty sure it’s C.

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How fast can Usain Bolt run if it takes him 9.9 s to run 100m?

Arte-miy333 [17]

Answer:

27.8 mph

Explanation:

May I have brainliest please? :)

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