A toy helicopter takes off and moves 2 m up and then 2 m back down. What
is the displacement of the helicopter?
A. 0 m
B. 2 m down
C. 2 m up
D. 4 m

Answers

Answer 1

Answer:

0m

Explanation:

2m up - 2m down =0m


Related Questions

what is the pH of a 2.58 x 10^-6 M solution of an acid?

Answers

Answer:

5.59

Explanation:

The pH of a solution can be found by using the formula

[tex]pH = - log [ {H}^{+} ][/tex]

From the question we have

[tex]ph = - log(2.58 \times {10}^{ - 6} ) \\ = 5.58838[/tex]

We have the final answer as

5.59

Hope this helps you

Which represents a balanced chemical equation?

Answers

i think it’s b but i could be wrong

Answer:

C

Explanation:

Reactant part has 2 Mg and 2 O, product part has 2 Mg and 2 O

Determine the spec gravity of 500 mL alcohol if the density is 0.79g/ml

Answers

Answer:

S.G = 0.79.

Explanation:

Hello there!

In this case, according to the given information in the problem, it turns out possible for us to calculate the specific gravity of this alcohol by simply dividing its density, 0.79 g/mL by that of the water, 1 g/mL just as a reference for us to work with:

[tex]S.G=\frac{\rho _{alc}}{\rho _w}[/tex]

Thus, we plug in the densities to obtain:

[tex]S.G=\frac{0.79g/mL}{1g/mL}\\\\S.G=0.79[/tex]

Which is dimensionless as g/mL is cancelled out due to its presence on both top and bottom of the previous formula.

Regards!

THIS NOT MY WORK. its for my sister. HELP HER

Answers

Answer:

Your answer will be b(molten material from the outer core makes its way to the surface of earth)

Explanation:

Answer:

C

Explanation:

I'm pretty sure molten material comes from the inner core. I think you can search up this though, try to find where molten material comes from. Goodluck!

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