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Oliga [24]
3 years ago
12

What is the length of a string with a mass of 2.5 kg, with a

Physics
1 answer:
natulia [17]3 years ago
4 0
B 0.4 m should be correct if not it is A
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A child with mass of 25 kg gets into a toy car with mass of 80 kg on a playground, causing it to sink on its springs (with effec
Bess [88]

Answer:

The frequency of the oscillation is 0.9Hz

Explanation:

This problem bothers on simple harmonic motion of a spring

Given data

Mass of the child m= 25kg

Spring constant k=791 N/m

Amplitude a= 31cm

But the period of the motion as a result of the adults sholve is expressed as

T=2π√m/k

T=2*3.142√25/791

T=6.284√0.031

T=6.284*0.176

T=1.11 sec

But frequency F=1/T

F=1/1.11

F=0.9Hz

4 0
3 years ago
If C is the vector sum of A and B, C = A + B, What must be true if C = A + B?. What must be true if C = 0?.
dybincka [34]
A and B are equal vectors
7 0
3 years ago
Did the strongman pull up or push down to lift the pig
fredd [130]

Answer:

pull up???????????????

7 0
3 years ago
Which kind of mechanical wave needs a source of energy to produce it?
Over [174]
I think the answer would be T<span>ransverse, Longitudinal, & Surface waves.

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6 0
3 years ago
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The first American to orbit the earth was:
alexdok [17]
John Glenn is the first American to orbit the Earth.

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3 years ago
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