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2 years ago

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What two traits must a viable hypothesis have

1 answer:

I am Lyosha [343]2 years ago

8 0

<span>The hypothesis must be testable and falsifiable. The first stipulation is that the hypothesis must be able to be tested and be phrased as such. In addition, the second stipulation holds that the statement must be able to be falsified; that is, the statement can be showed to not be the case.</span>

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An archer puts a 0.30 kg arrow to the bowstring. An average force of 201 N is exerted to draw the string back 1.3 m.a. Assuming

Vlad [161]

Answer:

Explanation:

Given

mass of archer $m=0.3\ kg$

Average force $F_{avg}=201\ N$

extension in arrow $x=1.3\ m$

Work done to stretch the bow with arrow

$W=F\cdot x$

$W=201\times 1.3=261.3\ m$

This work done is converted into kinetic Energy of arrow

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

where v= velocity of arrow

$261.3=\frac{1}{2}\times 0.3\times v^2$

$v=\sqrt{1742}$

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(b)if arrow is thrown vertically upward then this energy is converted to Potential energy

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$h=\frac{261.3}{0.3\times 9.8}$

$h=88.87\ m$

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3 years ago

What is the second largest watershed by drainage area in north america?

Svetlanka [38]

<span>Hudson Bay drainage basin</span>

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3 years ago

A light pointer is stuck to the rubber sheet so that it pivots about a point P near the

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1 year ago

A bicycle racer rides from a starting marker to a turnaround marker at 10 m/s. She then rides back along the same route from the

vitfil [10]

Answer:

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Explanation:

If we recall from the previous knowledge we had about speed,

we will know that:

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Mathematically, it can be computed as:

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$v_{avg} = \dfrac{2d}{\dfrac{d}{10 \ m/s}+ \dfrac{d}{16 \ m/s}}$

$v_{avg} = \dfrac{2}{\dfrac{1}{10 \ m/s}+ \dfrac{1}{16 \ m/s}}$

$v_{avg} = \dfrac{2}{\dfrac{13}{80 \ m/s}}$

$\mathbf{v_{avg} =12.31 \ m/s}$

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2 years ago

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Serhud [2]

Answer:

[He]2s²2p⁶

Explanation:

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3 years ago

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