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3 years ago

Procedure on making electricity using solar

1 answer:

8 0

<span>Solar-powered photovoltaic (PV) panels convert the sun's rays into electricity by exciting electrons in silicon cells using the photons of light from the sun. This electricity can then be used to supply renewable energy to your home or business.</span>

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Lists the 4 states of matter from most amount of thermal energy to least amount of thermal energy?

Cerrena [4.2K]

Answer:

Explanation:

plasma, gas, liquid, solid

3 0

3 years ago

A ping-pong ball is traveling at 10m/s in air, spinning 100 revolutions per second in the clockwise direction. Calculate the lif

allsm [11]

Answer:

lift force = 0.213 N

Drag force = $2*10^-3 N$

Explanation:

Given: velocity v = 10 m/s

w = 100 rev/sec

diameter d = 3cm

density D = 1.2kg/m3

lift force = $16/3*(pi^2*d^3*w*D*v)$

Substituting the values into the equation, we obtain

lift force = 0.213 N

Drag force = C*D*A*v/2

where C = 0.5

substituting the values into the equation again, we have

Drag force = $2*10^-3 N$

5 0

3 years ago

A 4 kg block is pulled with 5.6 N of force to the right. The block experiences 1.1 N of friction. What is the acceleration of th

BARSIC [14]

Answer:

The acceleration of the box is 1.125 m/s² towards right.

Explanation:

Mass of the box, $m=4$ kg

Force acting towards right, $F=5.6$ N

Frictional force acting towards left, $f=1.1$ N

Let the acceleration be $a$ m/s².

Now, net force acting on the box towards right is given as:

$F_{net}=F-f=5.6-1.1=4.5\textrm{ N}$

From Newton's second law of motion,

$F_{net}=ma\\4.5=4a\\a=\frac{4.5}{4}=1.125\textrm{ }m/s^2$

Therefore, the acceleration of the box is 1.125 m/s² towards right.

7 0

4 years ago

Which best describes a chemical reaction? the rearrangement of atoms by breaking and reforming chemical bonds a reaction that ab

Ede4ka [16]

Answer:

Explanation:

5 0

3 years ago

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If silicic rock is found in a core sample, what evidence does this provide about the rock’s location?

iragen [17]

If silicic rock is found in a core sample, its location is likely underneath an ocean or a mountain.

Answer: Option A

<u>Explanation:</u>

Silicic rock are the type of rocks which are made up of silica and are located at the crust of the earth which is more likely to the core lying underneath and it extends all the way up to 30 km.

Its density is around 2 gm / cm^3 .One of the common example of silica is granite. So if the silicic rocks are found in a core it is more likely underneath the ocean or mountain.

3 0

3 years ago

Read 2 more answers