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saw5 [17]
3 years ago
9

Why is Energy not created nor destroyed? (Need the answer ASAP!!)

Physics
1 answer:
eduard3 years ago
4 0

Since both heat and work can be measured and quantified, this is the same as saying that any change in the energy of a system must result in a corresponding change in the energy of the surroundings outside the system. In other words, energy cannot be created or destroyed.

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if thanos lost in End Game" what would happend to the gountlet and who would take over the world with it?????
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Have you seen Endgame?

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3 years ago
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A small boat coasts at constant speed under a bridge. A heavy sack of sand is dropped from the bridge onto the boat. The speed o
Tju [1.3M]

Answer:

d. decreases

Explanation:

The law of conservation of momentum tells us that the sum of momenta before the collision is equal to the sum of momenta after the collision. The bag has no momentum as it falls onto the boat because its velocity is zero in the horizontal direction. But after it hits the boat, it's momentum increases while the momentum of the system remains the same. That means a component of the system must decrease somewhere else. And that component is the velocity, not the mass, of the boat.

7 0
3 years ago
It takes 160 kj of work to accelerate a car from 24.0 m/s to 27.5 m/s. what is the car's mass?
ankoles [38]
Work-Energy :W = 1/2 m ( Vf^2 -Vo^2 )
Vo = 24.0 m/s Initial speed 
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160 kj = 1/ 2 m ( 27.5^2  -24.0 ^2)
160kj =  4680 x m
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4 0
3 years ago
The display of the aurora and the reflection of radio waves back to earth result from the _____.
Tasya [4]

The layer of electrically charged molecules and atoms which spans 40-250 miles above ground called ionosphere causes the display of the aurora and the reflection of radio waves back to earth.

8 0
3 years ago
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What statement is true according to newton’s first law of motion?
Airida [17]

Answer:

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3 years ago
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