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Adreanna1018
05.02.2020 •
Physics
A50 g mass hanger hangs motionless from a partially stretched spring. when a 65 gram mass is added to the hanger, the spring stretch increases by 10 cm. what is the spring constant of the spring (in n/m)? (assume g = 9.79 m/s2.
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Ответ:
The spring constant of the spring is 11.65 N/m
Explanation:
It is given that, a 50 g mass hanger hangs motionless from a partially stretched spring. When a 65 gram mass is added to the hanger, the spring stretch increases by 10 cm.
Initial mass, m = 50 g = 0.005 kg
Final mass, m' = 50 g + 65 g = 115 g = 0.115 kg
Initially, the elongation is x (say). The spring stretch increases by 10 cm or 0.1 m.
We know that,
F = k x
Where
k is the spring constant
For the initial condition :
For the final condition :
Solving equation (1) and (2)
x = 0.0042 m
Now put the value of x in equation (1)
Hence, this is the required solution.
Ответ:
The photon striking the atom is moving too fast.
Explanation: