2 years ago

PLEASE HELP ASAP!!!!!!!!!!WILL GIVE BRAINLIEST...

Physics

2 answers:

Delicious77 [7]2 years ago

7 0

The answer to this is D. Green.

joja [24]2 years ago

6 0

The answer is A because of the pigment chlorophyll that absorbs blue and red light

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A 200-kg boulder is 1000-m above the ground. what is its potential energy?

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Spiders may "tune" strands of their webs to give an enhanced response at frequencies corresponding to the frequencies at which d

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$\rho$ = Density of silk = 1300 kg/m³

d = Diameter = 0.002 mm

r = Radius = 0.001 mm

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$f=\dfrac{1}{2l}\sqrt{\dfrac{T}{m/l}}\\\Rightarrow T=4lf^2m\\\Rightarrow T=4\times 0.16\times 200^2\times 6.5345127195\times 10^{-10}\\\Rightarrow T=0.0000167283525619\ N$

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3 years ago

An amount of work W is done on an object of mass m initially at rest, and as result it winds up moving at speed v. Suppose inste

sesenic [268]

Answer:

Explanation:

Given

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$W=\frac{1}{2}mv^2---1$

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$W=\frac{1}{2}mv_f^2-\frac{1}{2}mv^2-----2$

From 1 and 2 we get

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$2\times \frac{1}{2}mv^2=\frac{1}{2}mv_f^2$

$v_f^2=2v^2$

$v_f=\sqrt{2}v$

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3 years ago