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Alex777 [14]
3 years ago
5

The power dissipated in a resistor can be written as __________.

Physics
1 answer:
Simora [160]3 years ago
3 0

Answer:

P=I^2R

Explanation:

The power dissipated in a resistor is given by the equation:

P=I^2 R

where

P is the power

I is the current

R is the resistance

We can also rewrite the equation by using Ohm's law:

V=IR

where V is the potential difference across the resistor. Rewriting R as

R=\frac{V}{I}

The equation for the power becomes

P=VI

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PtichkaEL [24]

Answer:

A force is a push or pull that acts upon an object as a result of that objects interactions

Explanation:

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3 years ago
Does the refraction of light make a swimming pool seem deeper or shallower? explain your answer.
larisa [96]

The refraction of light makes a swimming pool seem <u>shallower</u>.

The swimming pool seems shallower because the rays of light coming from the bottom of the pool do not come with a straight path. The path of light is straight as long as it is in the water.

When lights come out of the water into the air it bents downwards. This bending is called refraction.

Refraction forms a virtual image of the pool and it seems shallower than it actually is to the observer. This only happens when light travels from one transparent medium into another having lower density.

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1 year ago
Choose all facts that increase the orbital velocity of a vessel around planet B. Bigger mass of planet B smaller mass of planet
telo118 [61]

Answer:

- Bigger mass of planet B  

- orbiting closer to planet B

Explanation:

The orbital velocity of the vessel around the planet can be found by equalizing the force of gravity between the vessel and the planet and the centripetal force:

G\frac{mM}{r^2}=m\frac{v^2}{r}

where

G is the gravitational constant

m is the mass of the vessel

M is the mass of the planet

r is the distance between the vessel and the centre of the planet

v is the orbital velocity of the vessel

Re-arranging the formula, we find an expression for v:

v=\sqrt{\frac{GM}{r}}

We see that:

- the bigger the mass of the planet, M, the bigger the velocity

- the bigger the distance between the vessel and the planet, r, the smaller the velocity

So, the correct choices that increase the orbital velocity are:

- Bigger mass of planet B  

- orbiting closer to planet B

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3 years ago
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vampirchik [111]

Answer:

D

Explanation:

D

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Heat is transfered from the heating elements to the pot
Varvara68 [4.7K]
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