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madam [21]
3 years ago
7

What is the force needed to accelerate a sled with a mass of 2 kg at a rate of 3.0/s²

Chemistry
1 answer:
frutty [35]3 years ago
7 0

Answer:

<h3>The answer is option A</h3>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

<h3>Force = mass × acceleration</h3>

From the question

mass = 2 kg

acceleration = 3 m/s²

We have

Force = 2 × 3

We have the final answer as

<h3>6.0 N</h3>

Hope this helps you

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Answer:

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Explanation:

Calories ( or joules) are added to the water by the hot steel so at the endpoint they are BOTH at 40 C

 The water gains:

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The steel gave up 2090 j going from 120 to 40 C

2090 = .44 j/g-C  * m * (120-40)    solve fro m = 59.375 gm

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During the equilibrium, there is no change in the properties of the reaction and the amounts of substances involved remain the same.

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