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evablogger [386]
3 years ago
7

7. A pool cue ball moving at 2.1 m/s east collides in a straight line with the eight ball at rest. Find the velocity of the eigh

t ball after the collision if momentum is conserved and
A. the cue ball stops. (5 points)
B. the cue ball continues on in the same direction at 0.10 m/s. (5 points)
C. the cue ball continues on in the same direction at 0.70 m/s. (5 points)
Physics
2 answers:
Hitman42 [59]3 years ago
8 0

the answer is letter B


MArishka [77]3 years ago
6 0
I think the answer is C the cue ball con....
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EC_2 = 0

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Select all that apply. Which of the following are characteristics of acids? contain hydroxide ion or produce it in a solution ta
julia-pushkina [17]
These are the characteristics that apply:

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5 0
3 years ago
oscillating spring mass systems can be used to experimentally determine an unknown mass without using a mass balance. a student
12345 [234]

Answer:

Mass, m = 6.18 kg

Explanation:

Given the following data;

Frequency, F = 10 Hz

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We know that pie, π = 22/7

To find the mass, we would use the following formula;

F = 1/2π√(k/m)

Where;

F is the frequency of oscillation.

k is the spring constant.

m is the mass of the spring.

Substituting into the formula, we have;

10 = 1/2 * 22/7 * √250/m

10 = 22/14 * √250/m

Cross-multiplying, we have;

140 = 22 * √250/m

Dividing both sides by 22, we have;

140/22 = √250/m

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Taking the square of both sides, we have;

6.36² = (√250/m)²

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Cross-multiplying, we have;

40.45m = 250

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Mass, m = 6.18 kg

3 0
2 years ago
I'm confusion, can I please get help???
kotykmax [81]

Answer:

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Neutral is simply 7, in the middle of the scale.

Lastly, anything above 7.0 is basic or alkaline, so that would be 7 to 14.

Good luck, I hope this helps

7 0
3 years ago
What is a difference in electrical charge from one point to another called?
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Answer:electrical potential

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