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2 years ago

Write down short notes on:a. Electrical energy

Physics

1 answer:

PilotLPTM [1.2K]2 years ago

4 0

Answer:

Explanation:

Electrical energy is energy derived from electric potential energy or kinetic energy.

Or,

Electrical energy is a form of energy resulting from the flow of electric charge. Lightning, batteries and even electric eels are examples of electrical energy.People use electricity for lighting, heating, cooling, and refrigeration and for operating appliances, computers, electronics, machinery, and public transportation systems.

Hope it helped you.

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A box with a mass of 2 kg accelerates in a straight line

mihalych1998 [28]

Answer: 16N

Explanation:

Given that:

mass of box M= 2 kg

Initial speed V1 = 4 m/s

Final speed V2 = 8 m/s

Time taken T= 0.5 s

Average strength of this force F = ?

Now, recall that Force is the rate of change of momentum per unit time

i.e Force = momentum / time

Hence, F = M x (V2 - V1)/T

F = 2kg x (8 m/s - 4 m/s) / 0.5s

F = 2kg x (4 m/s / 0.5s)

F = 2kg x 8 m/s/s)

F = 16N

Thus, the average strength of this

force is 16 newton.

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3 years ago

G s w d v b k x s r only for freinds Have a pretty heart

tamaranim1 [39]

Answer:

what do you mean

Explanation:

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1 year ago

by doing a nuclear diffraction experiment, you measure the de broglie wavelength of a proton to be 8.29 fm. (a) what is the spee

Irina18 [472]

By the de Broglie wavelength equation, the speed of proton is 0.47 × $10^{8}$ m/s.

λ = h / mv

λ = wavelength, given = 8.29 fm

h = plank's constant, given = 6.626 × $10^{-34}$

m = mass, given = 1.672 × $10^{-27}$ kg

v = velocity

Now, v = h / mλ

Put the values in formula, v = h / mλ

v = 0.47 × $10^{8}$ m/s

Therefore, the speed of proton is 0.47 × $10^{8}$ m/s.

Learn more about de Broglie wavelength here:- brainly.com/question/15330461

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11 months ago

A rotating cylinder about 16 km long and 7.8km in diameter is designed to be used as a space colony.

Semmy [17]

Answer:

0.05 rad/s

Explanation:

7.8 km = 7800 m

For the residents inside the space cylinder to experience the same gravitation acceleration g = 9.81m/s2 on Earth, the centripetal acceleration must be the same as g

$a = g$

But centripetal acceleration is product of angular velocity squared and radius of rotation r

$\omega^2r = 9.81$

$\omega^2 d/2 = 9.81$

$\omega^2 = \frac{2*9.81}{d} = \frac{19.62}{7800} = 0.0025$

$\omega = \sqrt{0.0025} = 0.05 rad/s$

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3 years ago

Who was Queen Himiko and why was she important?

cupoosta [38]

Answer:

According to Japanese legend, Himiko was the daughter of the emperor Suinin (fl. 1st century bc–1st century ad), who gave her custody of the sacred mirror, symbol of the sun goddess. In 5 bc she supposedly enshrined the mirror at Ise, a city of present Mie Prefecture.

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2 years ago

Write down short notes on:a. Electrical energy​

Write down short notes on:a. Electrical energy