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Scilla [17]
3 years ago
7

Is the amount of stretch of the springs proportional to the hanging mass? Explain briefly.

Physics
1 answer:
Leviafan [203]3 years ago
8 0

Answer:

When connected in parallel, the extension of both springs is the same, and the total elastic force will be equal to the sum of the forces in each spring: x=x1=x2,F=F1+F2. F=F1+F2,⇒kx=k1x1+k2x2=(k1+k2)x,⇒k=k1+k2.

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3 years ago
How long must a current of 100mA flow so as to transfer a charge of 80 C? ​
defon

Answer:

800s

Explanation:

Q=It

where,

Q=80c

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6 0
4 years ago
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A student places her 490 g physics book on a frictionless table. She pushes the book against a spring, compressing the spring by
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Answer:

book speed is 3.99 m/s

Explanation:

given data

mass m = 490 g = 0.490 kg

compressing x = 7.10 cm = 0.0710 m

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solution

we know energy is conserve so

we can say

loss in spring energy is equal to gain in kinetic energy

so

\frac{1}{2}*k*x^2 = \frac{1}{2}*m*v^2    ..................1

put here value

\frac{1}{2}*1550*0.071^2 = \frac{1}{2}*0.490*v^2

v = 3.99 m/s

so book speed is 3.99 m/s

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Milk is an example of a .
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