Answer:
0.625 g/m
Explanation:
The fundamental frequency of a tensioned string is:
f = √(T/ρ) / (2L)
where T is the tension,
ρ is the mass per length linear density,
and L is the length of the string.
Solving for ρ:
2Lf = √(T/ρ)
4(Lf)² = T/ρ
ρ = T / (4(Lf)²)
Given T = 100 N, L = 2 m, and f = 100 Hz:
ρ = 100 / (4 (2×100)²)
ρ = 100 / (4 × 40000)
ρ = 1/1600
ρ = 0.000625 kg/m
ρ = 0.625 g/m
Moment of force=fxd
Explain
M=fxd
A. a lever
Explanation:
To remove a nail from wood, a lever will be the best machine to use. In a lever, effort is applied to move a large load. The nail is treated as the load.
- Most hammers have nail removers that can be used to pull out nails.
- The force is applied at the handle.
- The head of the hammer has a fulcrum and nail remover part where the load is.
- This gives a large mechanical advantage and the nail can be pulled out.
- Wedge, wheel and axle and movable pulley are not machines that works as nail removers.
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Pulley brainly.com/question/11442367
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