4 years ago

Describe two technology for liver transplant

Physics

1 answer:

Kobotan [32]4 years ago

7 0

Visit in www.technology.com its answer is in page no. 4

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Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor?

uranmaximum [27]

Momentum is (mass) times (speed), so nothing that is at rest has any momentum. If the battleship is at rest, then a mosquito in flight, a leaf falling from a tree, and your speedy baseball each have more momentum than the ship has.

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4 years ago

The engine of a locomotive exerts a constant force of 6.8 105 N to accelerate a train to 80 km/h. Determine the time (in min) ta

Setler [38]

Answer:

t = 6 minutes

Explanation:

Given that,

Force, $F=6.8\times 10^5\ N$

Initial speed of the train, u = 0

Final speed of the train, v = 80 km/h = 22.22 m/s

The mass of the train, $m=1.1\times 10^7\ kg$

We need to find the time taken by the train to come to rest. We know that,

F = ma

$F=\dfrac{m(v-u)}{t}\\\\t=\dfrac{m(v-u)}{F}\\\\t=\dfrac{1.1\times10^7\times (22.22-0)}{6.8\times 10^5}\\\\t=359.44\ s$

t = 6 minutes (approx)

So, the required time is equal to 6 minutes.

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3 years ago

What is the point on the globe to the right that receives 24 hours of daylight on the December solstice?

Ilya [14]

Answer: Explanation:

Locations above the Arctic Circle (north of 66.5 degrees latitude; 90 degrees minus the tilt of Earth's axis) receive 24 hours of sunlight.

Orbits: Sun

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3 years ago

How do you calculate the work done when lifting an object?

vichka [17]

Mass x Gravity x Height

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As the solar system cooled and developed, larger bodies were pushed away from its center by gravity.

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False, there isn’t gravity in space.

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