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Scilla [17]
4 years ago
11

A spelunker is surveying a cave. she follows a passage 170 m straight west, then 250 m in a direction 45â east of south, and the

n 280 m at 30â east of north. after a fourth unmeasured displacement, she finds herself back where she started.
Physics
1 answer:
almond37 [142]4 years ago
4 0
Im not sure but is the magnitude 160.8?
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marusya05 [52]

Explanation:

speed of light= c

wave length= L

frequency= f

c=Lf → L= c/f → L= 3 × 10⁸/ 27 × 10⁹ → L = 1/90 ≈ 0.011 m

4 0
2 years ago
11 Design Imagine that a scientistdiscovered a way to make africtionless surface. What wouldbe some useful applications forthis
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3 0
3 years ago
Find the unknown mass of the block 1 needed to balance the bar. Assume that the mass of the bar is negligible. Block 1 is locate
Natasha2012 [34]

Answer:

Incomplete question: The masses of the blocks m₂ = 1.5 kg and m₃ = 2 kg

Explanation:

Given data:

L₁ = length = 0.85 m

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Is negative because mass 1 is to the left of the coordinate system (see the diagram)

m_{1} =\frac{m_{2} gL_{2}+m_{3} gL_{3}  }{L_{1} } =\frac{(1.5*0.25)+(2*0.5)}{0.85} =1.6176kg

4 0
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Temperature and moisture are key factors in determining where each of the seven occur. A) biomes B) biospheres
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It's when each of the seven BIOMES occur 
6 0
3 years ago
Sally is trying to lift a heavy box, but is not strong enough to lift it.  Would the force that she is applying to the box be an
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If you give it unbalanced force it would go up and if you can't give it enough it will stay a balanced force
 
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3 years ago
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