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siniylev [52]
2 years ago
6

If an object with a mass of 248kg is lifted 76 meters in 18 seconds, how much power is used?

Physics
1 answer:
Jlenok [28]2 years ago
3 0

Explanation:

power = 1/2 mass × velocity^2 >>1

velocity = distance / time = 76 /18 = 4.2m

then power = 1/2 × 276 × (4.2)^2 = 138 × 17.64 = 2,434.3 jules.

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the moderate temperatures of islands throughout the world has much to do with water's vast supply of internal energy. high evapo
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High specific heat of the water. Option (c)

What is Specific heat?

The amount of heat required to increase the temperature of one gram of a substance by one degree Celsius is referred to as the substance's specific heat. Typically, calories or joules are used per gram and degree Celsius when referring to the units of specific heat.

The moderate temperature of islands has much to do with the water's high specific heat. The typical off-water is more significant than this clear land or soil. Due to this fact, water absorbs and releases eat more slowly. In comparison to the land.

Hence, the water has high specific heat.

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3 0
1 year ago
What does it mean for forces to be in equilibrium?.
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Explanation:

If the size and direction of the forces on the object are exactly balanced , then there is no net force acting on the object

8 0
2 years ago
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At point E

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<h3>What is the energy of the roller coaster at point E?</h3>

The energy of a roller coaster could either be potential energy, kinetic energy or a combination of both potential and kinetic energy.

Using analogies, the energy of the roller coaster at point E can be compared to a falling fruit from a tree which falls onto a pavement and is the rolling towards the floor. Point E can be compared to the midpoint of the fall of the fruit.

At point E

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  • the potential energy is greater than the kinetic energy
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In conclusion, the energy of the rollercoaster at E is both Kinetic and potential energy,

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2 years ago
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Answer

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A) Leftover planetesimals inside the frost line are known as ASTEROIDS.

B) METEORITES are the pieces of Asteroids which are fallen on the earth's surface.                                                

C) COMETS are the objects which are visible with long tails.            

D) COMETS are also the leftover planetesimals that are occupied by the jovian planets and are formed in the solar system.                

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It's very hard to see the self-portrait, so I can't identify him.
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3 years ago
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