3 years ago

How fast is a cat that runs 3 kilometers in 0.5 hours

Physics

1 answer:

statuscvo [17]3 years ago

6 0

Yes very very fast needs to be on time

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In some areas, farmers have installed windmills to generate electricity to run the farm.

Aleks [24]

Answer:

Number 3

Explanation:

Unlike other numbers, this states that wind is "renewable". The choice 2 sounds a bit selfish, or not worded properly, I believe choice 3 is the answer. However, you are the judge of choosing to believe this or not.

Good luck!

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2 years ago

A car with a momentum of 1200 kg.m/s with a mass of 600 kg hit a trash can which was on the side of the road,If the mass of tras

GuDViN [60]

Speaking that the trash can absorb the momentum. It only should go 5

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3 years ago

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As mentioned, electric fields are extremely interconnected with magnetic fields and these two types of force can travel together

Nady [450]

Answer: I think the answer is a wave/ a transverse wave, or electromagnetic waves as well.

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3 years ago

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Two blocks on a frictionless horizontal surface are on a collision course. one block with mass 0.6 kg moves at 0.8 m/s to the ri

Elanso [62]

First we can say that since there is no external force on this system so momentum is always conserved.

$m_1v_{1i} + m_2v_{2i} = m_1v_{1f} + m_2v_{2f}$

$0.6*0.8 + 1.2*0 = 0.6*v_{1f} + 1.2*v_{2f}$

$0.48= 0.6*v_{1f} + 1.2*v_{2f}$

$0.8 = v_{1f} + 2v_{2f}$

now by the condition of elastic collision

$v_{2f} - v_{1f} = 0.8 - 0[\tex]now add two equations[tex]3*v_{2f} = 1.6$

$v_{2f} = 0.533 m/s$

also from above equation we have

$v_{1f} = -0.267 m/s$

So ball of mass 0.6 kg will rebound back with speed 0.267 m/s and ball of mass 1.2 kg will go forwards with speed 0.533 m/s.

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3 years ago

Calculate the Force applied on a body of mass 100 KG Moving with the velocity 20 m/s so that it can be brought into rest in five

bearhunter [10]

Explanation:

$v = u + at$

0=20+a*5

a=-4

--------------

now,

$f = ma$

F=ma=100*-4=-400N

7 0

3 years ago