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3 years ago

PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!! What is a front?

Physics

2 answers:

Phoenix [80]3 years ago

7 0

It’s a set of type of one particular face and size

Shkiper50 [21]3 years ago

4 0

Answer:

in computer and writing context it is many styles of writing that you can make the text look like. I.E: helllo hello

Explanation:

A font is the combination of typeface and other qualities, such as size, pitch, and spacing. For example, Times Roman is a typeface that defines the shape of each character. Within Times Roman, however, there are many fonts to choose from -- different sizes, italic, bold, and so on.

Mark me the brainliest plz

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What best describes the significance of albert einstein's famous equation e=mc^2?

yuradex [85]

Energy = mass x speed of light squared

8 0

4 years ago

Read 2 more answers

What are four elements on the periodic table

Nataly_w [17]

There are 92 natural ones and about 20 more made in particle-Physics labs.

If we only stick to the 92 natural ones, then there are

   (92!) / (88! times 4!) = 2,794,155 possible answers to your question.

Here's one: Osmium
      Neodymium
      Iridium
      Gold .

4 0

3 years ago

An aluminum wire is held between two clamps under zero tension at room temperature. Reducing the temperature, which results in a

Blababa [14]

Answer:

$\frac{\Delta L}{L} =5.37\times 10^{-4}$

Explanation:

Given:

cross sectional area of the wire, $A=5.75\times 10^{-6}\ m^2$

density of aluminium wire, $\rho=2.7\times 10^3\ kg.m^{-3}$

young's modulus of the material, $E=7\times 10^{10}\ N.m^{-2}$

wave speed, $v=118\ m.s^{-1}$

We have mathematical expression for strain as:

$\frac{\Delta L}{L} =\frac{\sigma}{E}$ ...............................(1)

and since, $\sigma =\frac{T}{A}$

where, T = tension force in the wire

equation (1) becomes:

$\frac{\Delta L}{L} =\frac{T}{A.E}$ ............................(2)

Also velocity ofwave in tensed wire:

$v=\sqrt{\frac{T}{\mu} }$ ...................................(3)

where: $\mu=$ linear mass density of the wire

$\therefore \mu=\rho \times A$

Now, equation (3) becomes

$v=\sqrt{\frac{T}{\rho \times A} }$

$T=v^2.\rho \times A$ ............................(4)

Using eq. (2) & (4) for tension T

$v^2.\rho \times A=A.E\times \frac{\Delta L}{L}$

$\frac{\Delta L}{L} =\frac{v^2.\rho}{E}$

putting the respective values

$\frac{\Delta L}{L} =\frac{118^2\times 2.7\times 10^3}{7\times 10^{10}}$

$\frac{\Delta L}{L} =5.37\times 10^{-4}$

6 0

3 years ago

Light travels at 300,000 km per second. Mars is 56 million km away from Earth. How many seconds does it take light to travel fro

alina1380 [7]

Answer:

 It takes 186.67 second for the light to travel from Mars to earth.

Explanation:

Light: Light is a visible form of energy which is radiated outward from a source. Light travels in a straight line, and this phenomenon is called rectilinear propagation of light.

S = d/t .......................... Equation 1

making t the subject of the equation

t = d/S ......................... Equation 2

Where S = speed of light, d = distance between the earth and Mars, t = time

Given: d = 56000000 km, S = 300000 km per seconds.

Substituting these values into equation 2

t = 56000000/300000

t = 186.67 seconds.

Thus it takes 186.67 second for the light to travel from Mars to earth.

4 0

3 years ago

There is a Full Moon on September 14th. On which date will the New Moon occur? A.September 21st B.September 28th C.13th D.Octobe

hodyreva [135]

Answer:

the answer B

Explanation:

8 0

3 years ago