3 years ago

The law of conservation of mass states that

1 answer:

6 0

Hello There!

The law of conservation of mass states that Matter/substances/energy can not be created or destroyed, it can only be transferred from state to state.

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Mass and weight are the same in meaning and unit. true or false

schepotkina [342]

Answer:

False.

Explanation:

Mass is how much space an object takes up, while weight is how light or heavy an object is.

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3 years ago

An attractive force of 7.2 N occurs between two charges that are 0.20 m apart. If one charge is 4.0 μC, what is the other charge

VikaD [51]

F = ko *Q_1 * Q_2 / d^2

Q_2 = F*d^2 / [ko*Q_1] = 7.2 N * (0.2m)^2 / [9.0 x 10^9 N/m^2C^2 * 4.0 x 10^-6C] = 8x10^-6C = 8 microC

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In Coulomb's law, electrical force is a function of the distance between particles and the _______.

zepelin [54]

type of element that makes each particle hope this helps

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3 years ago

The displacement vector from your house to the library is 520 m long, pointing 40 ∘ north of east.What are the x-component (x-ax

Alexeev081 [22]

Answer:

398.3 m, 334.2 m

Explanation:

The magnitude of the displacement vector is

v = 520 m

And its direction is

$\theta=40^{\circ}$

measured as north of east.

The x-component of this vector is given by:

$v_x = v_0 cos \theta = (520)cos 40^{\circ}=398.3 m$

While the y-component is given by

$v_y = v_0 sin \theta =(520)sin 40^{\circ}=334.2 m$

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3 years ago

What is the energy conversion in an incandescent lightbulb?

Kamila [148]

Answer:

An incandescent bulb use electrical energy

Explanation:

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3 years ago