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sergij07 [2.7K]

3 years ago

13

How is color related to wavelength?

1 answer:

dlinn [17]3 years ago

8 0

<span>Each color has a different wavelength allowing the eye to see it.</span>

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Carbohydrates are the main building block of tissues and organs. True False

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That statement is false.

Proteins are.

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How to convert momentum into speed?

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You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain too

steposvetlana [31]

Answer:

$w'=5.679\ N$ on the planet

$w=22.43\ N$ on earth

Explanation:

Given:

initial velocity of the tool before pushing, $u=0\ m.s^{-1}$

force applied on the tool, $F=12\ N$

displacement of the tool, $s=16.4\ m$

time taken for the displacement, $t=2.5\ s$

height of releasing the tool, $h=10.3\ m$

time taken by the tool to fall on the ground, $t_v=2.88\ s$

<u>Now using the equation of motion:</u>

$s=u.t+\frac{1}{2}a.t^2$

where:

a = acceleration of the object

$16.4=0+0.5\times a\times 2.5^2$

$a=5.248\ m.s^{-2}$

Now the mass of the tool:

$m=\frac{F}{a}$

$m=\frac{12}{5.248}$

$m=2.2866\ kg$

<u>Using the equation of motion when the tool is dropped:</u>

$h=u.t_v+\frac{1}{2} \times g.t_v^2$

here:

g = acceleration due to gravity on the planet

$10.3=0+0.5\times a\times 2.88^2$

$g=2.4836\ m.s^{-2}$

Weight of the tool in the planet:

$w'=m.g$

$w'=2.2866\times 2.4836$

$w'=5.679\ N$

Weight of the tool on the earth:

$w=m.g'$

$w=2.2866\times 9.81$

$w=22.43\ N$

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What kind of reasoning is most often used to form hypotheses?

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Deductive reasoning

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