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amm1812
3 years ago
11

Which of the following is one part of a chemical formula?

Physics
2 answers:
Korvikt [17]3 years ago
8 0

Answer:

C

Explanation:

The symbol of each element in the substance

a_sh-v [17]3 years ago
5 0

Answer:A

Explanation: number that shows the total atomic mass of the substance

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A student hangs a weight on a newtonmeter. The energy currently stored in the spring in the newton meter is 0.045N. The student
castortr0y [4]

Answer:

5x10^-3

Explanation:

Hooke's Law states that the force needed to compress or extend a spring is directly proportional to the distance you stretch it.

Hooke's Law can be represented as

<h3> F = kx, </h3>

<em>where F is the force </em>

<em>            k is the spring constant</em>

<em>            x is the extension of the material </em>

<em />

Plug values in the equation

Step 1 find the original extension

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Step 2 find the new extension

0.045+2 = 400(x)

2.045 = 400x

x = 5.1125x10^-3

Step 3 subtract the new extension with original

Total extension of the spring =  5.1125x10^-3 - 1.125x 10^-4 m = 5x10^-3

8 0
3 years ago
A 300-n force acts on a 25-kg object. the acceleration of the object is?
Over [174]
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The acceleration of the object is 12m/s

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2 years ago
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What is the difference between mechanical digestion and chemical digestion in the mouth
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a 2,000 pound car is driving at 60 miles/hour along a straight, level road. what is the net force acting on the car?
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