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3 years ago

Potential energy is

Physics

1 answer:

katen-ka-za [31]3 years ago

7 0

Answer:

Potential energy is stored energy in a state of readiness.

Explanation:

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PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (40pts)

Grace [21]

Answer:

Bernoulli is A

Archimedes is B

Pascal is C

Explanation:

Hope this helps dude

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3 years ago

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A material that allows an electric current to flow through it is an electrical conductor. A material through which an electric c

ElenaW [278]

An insulator does not have electrons that are free to move, and a conductor does.

4 0

3 years ago

Calculate the aceleration of a vehicle if the initial velocity (Vi) is 20 m/s and acelerates to 40 m/s (V) in 3,8 s. (t).

tekilochka [14]

Hello!!

For calculate the aceleration of the vehicle let's applicate formula:

$\boxed{V=V_i + a*t}$

$\textbf{Being:}$

$\sqrt{}$ V = Final velocity = 40 m/s

$\sqrt{}$ Vi = Initial velocity = 20 m/s

$\sqrt{}$ a = Aceleration = ?

$\sqrt{}$ t = Time = 3,8 su

⇒ $\text{Then let's \textbf{replace it according} we information:}$

$40 \ m / s = 20 \ m / s + a * 3,8 s$

⇒ $\text{We clear the "a"}$

$a = \dfrac{40 \ m /s - 20 \ m / s }{3,8 \ s}$

⇒ $\text{Let's resolve it: }$

$a = 5,263 \ m / s$

$\textbf{Result:}\\\text{The aceleration is of \textbf{5,263 m/s}}^{2}$

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3 years ago

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2 What does how much, how<br> long and how <br> often have to do with exposure to chemicals?

tatiyna

Well how much, how long, and how often

For example how much is like how much a object is left in a small room with chemicals

How long is the time

how often is how much the same cycle is done repeatedly

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3 years ago

A lightbulb manufacturer makes bulbs with different "color temperatures," meaning that the spectrum of light they emit is simila

Oksana_A [137]

Answer:

The bulb with higher temperature(4000 K) will be brighter

Explanation:

From the question we are told that

The color temperature for first bulb is $T_1 = 2000K$

The color temperature for second bulb is $T_2 = 4000K$

Generally the emission power of black body radiation is mathematically represented as

$E = \sigma T^4$

Where $\sigma$ is the Stefan-Boltzmann constant with a value $\sigma = 5.67 * 10^{-8} W m^{-2} K^{-4.}$

Now for $T_1 = 2000K$

$E_1 = 5.67*10^{-8} * (2000)^4$

$E_1 = 907.2 \ W/m^2$

At $T_2 = 4000K$

$E_2 = 5.67*10^{-8} * 4000$

$E_2 = 14515.2 \ KW/m^2$

Looking at the result we got we see that the emission power for the higher temperature bulb is higher, this means that its power to emit in the visible spectrum range would be higher

So the bulb with higher temperature will be brighter

7 0

3 years ago