3 years ago

What happens when a electron and a proton get close together?

1 answer:

5 0

Answer:

it leads to attraction, only because the total energy of the electron is negative. Therefore the electron moves closer to the proton rather than farther from it an attractive force.... Electrons are negatively charged and protons are positively charged.

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A certain electric circuit obeys Ohm's law. If the resistance of the circuit is doubled, what will happen to the current through

netineya [11]

Answer:

currrent will be halved

Explanation:

v = ir

v/r = i multiply both sides by 1/ 2

v / (2r) = 1/2 i

4 0

3 years ago

Why is more energy required to vaporise 1kg of water than to melt 1kg of ice?

KiRa [710]

Answer:

cause it takes a lotof energy to melt

Explanation:

7 0

3 years ago

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Audible wavelengths. the range of audible frequencies is from about 20.0 hz to 2.00×104 hz . what is range of the wavelengths of

BabaBlast [244]

Given:
f1 = 20 Hz
f2 = 20000 Hz
speed of sound at 20 degrees celcius = 343 m/s

Solution:

for f1 = 20 Hz,

Using the equation:

lambda = speed of sound / f1 = 343 / 20 = 17.15 m

For f2:

lambda = speed of sound / f2 = 343 / 20000 = 0.01775 m

Therefore the wavelength range of audible sound in air would be 17.15 m to 0.01775 m.

6 0

3 years ago

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An astronaut is being tested in a centrifuge. The centrifuge has a radius R and, in starting, rotates according to θ = tn, where

Igoryamba

Answer:

a) ω=n

b) V = R*n

c) a = 0

d) $ar = R*n^2$