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ivolga24 [154]
3 years ago
15

Calculate the density of mercury if 500 cm3

Physics
1 answer:
notka56 [123]3 years ago
5 0

Answer:

The density of the mercury is 13.2 g/cm³

Explanation:

Density is a measurement that compares the amount of matter an object

has to its volume

Density is equal to mass divided by volume

We need to find the density of mercury if 500 cm³ has a mass of

6.60 kg in g/cm

We must to change The kilogram to grams

The mass of mercury is 6.60 kilograms

1 kilogram = 1000 grams

6.60 kilograms = 6.60 × 1000 = 6600 grams

Density = mass ÷ volume

The volume of the mercury is 500 cm³

The density = 6600 ÷ 500

The density = 13.2 g/cm³

<em>The density of the mercury is 13.2 g/cm³ </em>

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amid [387]

Answer:

1.52 nm

Explanation:

Using the De Broglie wavelength equation,

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substituting the values of the variables into the equation, we have

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λ = 6.63 × 10⁻³⁴ Js/(9.1 × 10⁻³¹ kg × 4.8 × 10⁵ m/s)

λ = 6.63 × 10⁻³⁴ Js/(43.68 × 10⁻²⁶ kgm/s)

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3 years ago
If a car moves with a uniform speed of 2m/s in a circle of radius 0.4m, what is its angular speed?
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Answer:

The car's angular speed is \frac{rad}{s}.

Explanation:

Angular velocity is usually measured with \frac{radians}{sec}, so I'm going to use that to answer your question.

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Using the values from the question, we get:

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Therefore, the car's angular speed is 5 \frac{rad}{s}.

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when approaching the front of an idling jet engine, the hazard area extends forward of the engine approximately
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Answer:

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Explanation:

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