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PSYCHO15rus [73]
3 years ago
12

which of the following best represent positive self-talk A. "I'm making progress". B. "its just not my day". "I've tried. I just

can't do it". D. "nothing ever goes right".
Physics
1 answer:
KatRina [158]3 years ago
5 0
A. I'm making progress
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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

Spring constant, k = 250 N/m

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

6.36 = √250/m

Taking the square of both sides, we have;

6.36² = (√250/m)²

40.45 = 250/m

Cross-multiplying, we have;

40.45m = 250

Mass, m = 250/40.45

Mass, m = 6.18 kg

3 0
2 years ago
A 1,700 kg car is being used to give a 1,400 kg car a push start by exerting a force of
Gwar [14]

Answer:

- 670 kg.m/s

Explanation:

Newton's third law states that to every action, there is equal and opposite reaction force. Since the force will be same but different in direction and acted in the same time then the impulses ( force multiply by time) of the two car be same in magnitude but different in direction - 670 kg.m/s

5 0
3 years ago
What is terrestrial radiation?
Feliz [49]
C) Radiation that comes from Earth...... Hope it helps, Have a nice day :)
6 0
3 years ago
Read 2 more answers
Calculate the average speed of a runner who runs to for 500 meters in 40 second
siniylev [52]

Answer:

12.5

Explanation:

5 0
2 years ago
Please help ASAP!!
bixtya [17]

There is kinetic energy when it is sitting at the top, then as it goes towards the bottom, the kinetic energy is transformed into potential energy.

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