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3 years ago

Which expression is equivalent to g−m ÷ gn?

Physics

1 answer:

Vinvika [58]3 years ago

5 0

<u>Answer</u>

(g²n - m)/(gm)

<u>Explanation</u>

g - m ÷ gn = g - m/gn

Make the equation have the same denominator

g - m ÷ gn = g - m/gn = (ggn)/gn - m/gn

= (g²n)/gn - m/gm

Since they have the same denominator, we can carry out the subtraction on the numerator and then put them under one denominator.

(g²n)/gn - m/gm = (g²n - m)/(gm)

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Harlamova29_29 [7]

Answer:

Energy = 0.25 kilowatt-hour

Explanation:

Given the following data;

Power = 25 Watts

Time = 10 hours

Power can be defined as the energy required to do work per unit time.

Mathematically, it is given by the formula;

$Power = \frac {Energy}{time}$

To find the energy consumed;

Energy = power * time

Substituting into the formula, we have;

Energy = 25 * 10

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To convert to kilowatt-hour, we would divide by 1000;

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3 years ago

Help meh in this question

V125BC [204]

Radius=r=R_o/2
angular velocity=w=v_o
mass=m

We know

$\boxed{\sf K.E=\dfrac{1}{2}mv^2}$

For Rotational motion

$\boxed{\sf v=r\omega}$ .

Putting value

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{2}m(r\omega)^2$

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The statement that describes the energy changes associated with evaporation and boiling is that atoms gain energy during evaporation and boiling.

<h3>What is evaporation?</h3>

Evaporation is defined as process by which a solution changes from its liquid state to gaseous state.

Boiling is defined as the heating of water to a point that the vapor pressure is equal to the pressure of the gas above it.

In both phase transition stages, the molecules gain enough energy to change its state to another state.

Learn more about boiling here:

brainly.com/question/15284968

#SPJ1

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