3 years ago

For machines, efficiency refers to how well the____

Physics

1 answer:

alexdok [17]3 years ago

4 0

Answer:

input energy, output energy

Explanation:

sorry if its wrong

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Rajani had bought a new bottle of pickle from the market. She tried to open the

dem82 [27]

Answer:

The pickle bottle cap on dipping it in hot water expanded.

Explanation: Hope it helps you:))))

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2 years ago

Why does saturn and jupiter have more moons than the other planets in our solar system ?

Vikentia [17]

Because they are larger planets the gravitational pull is heavier and they attract more celestial bodies

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3 years ago

A 4.0 kg mass is attached to a spring whose spring constant is 950 N/m. It oscillates with an amplitude of 0.12 m. What is the m

Fudgin [204]

Answer:

velocity = 2.62m/s

Explanation:

950= (4 x A)/0.12

950 x 0.12 = 4 x A

114 = 4 x A

A = 114/4

A = 28.5m/s²

U²=2as
U² = 2 x 28.5 x 0.12
U² = 6.84
U = √6.84
U = 2.62m/s

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3 years ago

A 1200-kg car pushes a 2100-kg truck that has a dead battery to the right. When the driver steps on the accelerator, the drive w

zhannawk [14.2K]

Answer:4500 N

Explanation:

Given

mass of truck $(m_t)=2100 kg$

mass of car $(m_c)=1200 kg$

as the car push the ground with a force of 4500 N so the force on the truck should also be 4500 N as they all the force is transmitted to push the truck

and their acceleration is

$a=\frac{4500}{1200+2100}=1.36 m/s^2$

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4 years ago

Why are the meters squared in the formula to calculate acceleration?

lianna [129]

Answer:

During acceleration, you are moving across a distance over a time, but also increasing how fast we are doing it. Therefore, it means by how many meters per second the velocity changes every second

Explanation:

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4 years ago