All categories

2 years ago

What is solar made from

1 answer:

5 0

Solar cells are made out of silicon wafers. These are made out of the element silicon, a hard and brittle crystalline solid that is the second most abundant element in the Earth's crust after oxygen. If you're at the beach and see shiny black specks in the sand, that's silicon.

Hope this helps!

Please give brainliest!

You might be interested in

Describe how an increase in humidity can affect the water cycle

anastassius [24]

An increase in humidity can strengthen the water cycle, because humidity is essentially boosted evaporation. When you have evaporation, that comes automatically with condensation and precipitation, so rain and cloud cover increases.

3 0

3 years ago

Read 2 more answers

Can someone please help me

Tamiku [17]

F = 153 N

$\theta = 11.3°$

Explanation:

Let us define first our directional convention. Anything pointing up or to the right is considered positive and anything pointing down or to the left is considered negative. Now let's look at the components $F_{x}$ and $F_{y}$ :

$F_{x}$ = 350 N - 200 N = 150 N

$F_{y}$ = 180 N - 150 N = 30 N

The magnitude of the resultant force F is given by

$F = \sqrt{F_{x}^{2}+F_{y}^{2}}$

$\:\:\:\:\:\:= \sqrt{(150\:N)^{2}+(30\:N)^{2}}$

$\:\:\:\:\:\:=153\:N$

To find the direction $\theta$ , we use

$\tan \theta = \dfrac{F_{y}}{F_{x}}=\dfrac{30\:N}{150\:N}=0.2$

$\theta = \tan^{-1}(0.2) = 11.3°$

4 0

2 years ago

Azurite is a mineral that contains 55.1% of copper. How many meter of copper wire with diameter of 0.0113 in can be produced fro

soldier1979 [14.2K]

Answer:

1402.73 m

Explanation:

Mass of Azurite=3.25 lb

Percent of copper in AZurite mineral=55.1%

Diameter of copper wire,d=0.0113 in

Radius of copper wire= $r=\frac{d}{2}=\frac{0.0113}{2}=0.00565 in=\frac{565}{100000}=\frac{565}{100}\times \frac{1}{1000}=5.65\times 10^{-3}in$

$\frac{1}{1000}=10^{-3}$

Density of copper= $\rho=8.96g/cm^3$

1 lb=454 g

3.25 lb= $3.25\times 454=1475.5 g$

Mass of Azurite= $1475.5 g$

Mass of copper= $\frac{55.1}{100}\times 1475.5=813 g$

Density= $\frac{Mass}{volume}$

Using the formula

$8.96=\frac{813}{volume\;of\;copper}$

Volume of copper wire= $\frac{813}{8.96}=90.7cm^3$

Radius of copper wire= $5.65\times 10^{-3}\times 2.54=14.35\times 10^{-3} cm$

1 in=2.54 cm

Volume of copper wire= $\pi r^2 h$

$\pi=3.14$

Using the formula

$90.7=3.14\times (14.35\times 10^{-3})^2\times h$

$h=\frac{90.7}{3.14\times (14.35\times 10^{-3})^2}$

$h=140273 cm$

1 m=100 cm

$h=\frac{140273}{100}=1402.73 m$

Hence, the length of copper wire required=1402.73 m

7 0

3 years ago

Lf you divide a speed in miles per minute by 60, you get the same speed expressed in miles per

Zielflug [23.3K]

Ok that is interesting.

8 0

3 years ago

How are electromagnetic waves different from sound waves?

tangare [24]

Sound waves are longitudinal while electromagnetic are transverse waves. Sound is a mechanical vibration that passes through a medium while EM waves travel path of electromagnetic radiation.

8 0

3 years ago

Read 2 more answers