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Law Incorporation [45]

3 years ago

5

What is the identity of a sample that has a volume of 92.5 cm3 and a mass of 249.8 g?

2 answers:

schepotkina [342]3 years ago

7 0

Its aluminum its correct. :)

denpristay [2]3 years ago

3 0

Here, We know, Density = Mass / Volume
Here, mass = 249.8 g
volume = 92.5 cm³

Substitute their values,
d = 249.8 / 92.5
d = 2.7 g/cm³

In short, Your Answer would be "Aluminum"

Hope this helps!

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Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief time—called pulsed lasers. T

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A = Area = $1\ mm^2$

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3 years ago

An electron moves at a speed of 1.0 x 104 m/s in a circular path of radius 2 cm inside a solenoid. The magnetic field of the sol

iogann1982 [59]

Answer:

(a) B = 2.85 × $10^{-6}$ Tesla

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Explanation:

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⇒ B = $\frac{mv}{qr}$

Where: r is the radius, m is the mass of the electron, v is its velocity, q is the charge on the electron and B is the magnetic field

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B = μ I N/L

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where B is the magnetic field, μ is the permeability of free space = 4.0 × $10^{-7}$ Tm/A, N/L is the number of turns per length.

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I = 0.285 A

5 0

2 years ago