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Misha Larkins [42]

2 years ago

15

A mountain climber is hanging from a vertical rope, far above the ground and far from the rock face. the rope is vertical. what

are the forces acting

1 answer:

notka56 [123]2 years ago

7 0

The weight of the climber and the tension of the rope

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iogann1982 [59]

Answer:

Explanation:

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$m2v_0+2mv_0=mv_1+2mv_2 \quad (1/m) \quad 4v_0=v_1+2v_2\\$

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$\displaystyle \frac{1}{2}m(2v_0)^2+\frac{1}{2}2mv_0^2=\frac{1}{2}mv_1^2+\frac{1}{2}2mv_2^2 \quad (1/m) \quad 6v_0^2=v_1^2+2v_2^2$

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3 years ago

what is the energy of a single photon of ultraviolet light with a wavelength of 30.0 nm? 1 nm=10^-9 m

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From the planks equation
E=hv
V= c/ wave length
V= 3×10^8/30×10^-9
=1×10^16
E= hv
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= 6.63×10^-18

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