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Ugo [173]
3 years ago
7

When determining the density of a pure liquid or solution the temperature of the sample must be measured what is the density of

a liquid sample depend on the temperature
Chemistry
1 answer:
Whitepunk [10]3 years ago
3 0
Idk I just need points sorry man
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Any force that causes an object to move in a circle is called a(n) a balanced force. b unbalanced force. c gravitational force.
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Which of the following equations are correctly balanced?
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2 years ago
-K-12 Scientific Method
hjlf

Answer:

The correct answer is - scientific law.

Explanation:

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8 0
3 years ago
Determine the kinetic energy of an 833.0 kg roller coaster car moving at a speed of 20.0 m/s
trasher [3.6K]

Answer:

166,600J

Explanation:

Kinetic energy (K.E), which is the energy due to motion of a body, can be calculated by using the formula;

K.E = 1/2 × m × v²

Where;

K.E = kinetic energy (joules)

m = mass of body (kg)

v = speed or velocity (m/s)

According to this question, the mass of the roller coaster is 833.0 kg while its velocity/speed is 20.0m/s.

K.E = 1/2 × 833 × 20²

K.E = 1/2 × 833 × 400

K.E = 1/2 × 333200

K.E = 166,600

Therefore, the kinetic energy of the roller coaster car is 166,600J.

6 0
2 years ago
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