3 years ago

What are two types of speed that can used to describe the motion of a car driving on a highway

Physics

1 answer:

spin [16.1K]3 years ago

5 0

Answer:

MPH and KPH

Explanation:

because they are both units of speed measurement and if you they can be used to describe a speed on a highway

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Two lightbulbs work on a 120-V circuit One 50 W and the other is 100 W. Which bulb has a higher resistance? Explain pls!!!!

Sladkaya [172]

Answer:

Bulb 1 has more resistance.

Explanation:

Given that,

Two lightbulbs work on a 120-V circuit.

The power of circuit 1, P₁ = 50 W

The power of circuit 2, P₂ = 100 W

We need to find the bulb that has a higher resistance.

The power of the bulb is given by :

$P = \dfrac{V^2}{R}$

For bulb 1,

$R_1=\dfrac{V^2}{P_1}\\\\R_1=\dfrac{(120)^2}{50}\\\\R_1=288\ \Omega$

For bulb 2,

$R_2=\dfrac{V^2}{P_2}\\\\R_2=\dfrac{(120)^2}{100}\\\\R_2=144\ \Omega$

So, bulb 1 has higher resistance.

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Tems11 [23]

Answer:

No because you cannot see air so therefore it cannot make shadows

Explanation:

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3 years ago

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B. truthfully it's the only one that makes sense

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3 years ago

The barometric pressure in breckenridge, colorado (elevation 9600 feet) is 580 mm hg. how many atmospheres is this?

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1 atmospheric pressure = 760.0 mm Hg

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