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3 years ago

What are the three formulas (one formula rearranged three ways) which describe the relationship

Physics

1 answer:

telo118 [61]3 years ago

4 0

Equation of Newton's second law of motion:

$F=ma\\a=\frac{F}{m}\\m=\frac{F}{a}$

Explanation:

The equation that gives the relationship between force, mass and acceleration is Newton's second law of motion:

$F=ma$

where:

F is the net force acting on an object

m is the mass of the object

a is the acceleration of the object

This equation basically tells that whenever there is a net non-zero force acting on an object, the object accelerates.

The equation can be re-arranged in three ways:

(1) $F=ma$ (standard formula)

(2) Then we can re-arrange by making a the subject, and we get

$a=\frac{F}{m}$

(3) Then we can further re-arrange the make the mass the subject, and we get

$m=\frac{F}{a}$

Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

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Liquid helium has a temperature of 4k what is the temperature on celsius and fahrenheit

lesya692 [45]

Answer:

Explanation:

°C = K - 273

= 4 - 273

= - 269 °C

° F = 9/5 (K - 273) + 32

= 9/5 × (4 - 273) + 32

= 1.8(-269) + 32

= - 487.4. + 32

= -455.4 °F

8 0

3 years ago

Why is electricity dead buy solar panels fundamentally different from converting thermal energy into electricity? (Bet you can't

gregori [183]

Because solar panels are man made so they can shut down, not move, break, etc...? Don’t judge me, it’s just a guess.

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3 years ago

"Light traveling in a medium with a refractive index 1.11 is incident on a plate of another medium with index of refraction 1.66

Kamila [148]

Answer:

56°

Explanation:

Brewsters angle can be simply derived from

n1sin theta1= n2sintheta2= n2costheta1

because the reflected light will be 100% polarized if it is reflected at an angle 90o to the refracted light. Hence, Brewsters angle is

Tan theta= n2/n1

1.66/1.11= 1.495

Theta = 56°

Explanation:

7 0

4 years ago

What is power?

Blizzard [7]

Answer:

Explanation:

P=Work/Time

The rate at which work is done matches that.

6 0

4 years ago

A series of lines involving a common level in the spectrum of atomic hydrogen lies at 656.46 nm, 486.27 nm, 434.17 nm, and 410.2

julsineya [31]

Answer:

The wavelength of next line in the series will be 397.05 nm

Explanation:

From Rydberg equation;

$\frac{1}{\lambda} = R_H(\frac{1}{n_1^2} -\frac{1}{n_2^2})$

where;

λ is the wavelength

n lines in the series

RH is Rydberg constant = 1.097 x 10⁷ m⁻¹

Also at a given maximum wavelength, we can determine the first line n₁ in the series

$\frac{1}{\lambda_{max}R_H} = \frac{1}{n_1^2} -\frac{1}{(n_1 +1)^2} \\\\$

$\frac{1}{\lambda_{max}R_H} = \frac{2n_1+1}{n_1^2(n_1 +1)^2} \\\\\lambda_{max}R_H} = \frac{n_1^2(n_1 +1)^2}{2n_1+1}$

Given;

maximum wavelength = 656.46 nm

$\lambda_{max}R_H} = \frac{n_1^2(n_1 +1)^2}{2n_1+1}\\\\656.46 *10^{-9}*1.097*10^7 = \frac{n_1^2(n_1 +1)^2}{2n_1+1}\\\\7.2 = \frac{n_1^2(n_1 +1)^2}{2n_1+1}$

Now, test for different values of n that will be equal to 7.2

let n₁ = 1

$\frac{n_1^2(n_1 +1)^2}{2n_1+1} = \frac{(1)^2(1 +1)^2}{2(1)+1} = 1.3\\$

n₁(1) ≠ 7.2

Again, let n₁ = 2

$\frac{n_1^2(n_1 +1)^2}{2n_1+1} = \frac{(2)^2(2 +1)^2}{2(2)+1} = 7.2\\$

∴ n₁(2) = 7.2

For the least wavelength given as 410.29 nm, n = ?

$\frac{1}{\lambda} = R_H(\frac{1}{n_1^2} -\frac{1}{n_2^2})\\\\\frac{1}{410.29*10^{-9}} = 1.097*10^7(\frac{1}{2^2} -\frac{1}{n_2^2})\\\\\frac{1}{4.5} =\frac{1}{4} -\frac{1}{n_2^2}\\\\\frac{1}{n_2^2} =\frac{1}{4} -\frac{1}{4.5} \\\\\frac{1}{n_2^2} = 0.0277778\\\\n_2^2 = \frac{1}{0.0277778} \\\\n_2^2 = 36\\\\n_2= \sqrt{36}\ = 6$

next line in the series will be 7

The wavelength of next line in the series will be;

$\frac{1}{\lambda} = R_H(\frac{1}{n_1^2} -\frac{1}{n_2^2})\\\\\frac{1}{\lambda} = 1.097*10^7(\frac{1}{2^2} -\frac{1}{7^2})\\\\\frac{1}{\lambda} = 1.097*10^7(0.22959)\\\\\frac{1}{\lambda} = 2518602.3\\\\\lambda = 397.05 \ nm$

Therefore, the wavelength of next line in the series will be 397.05 nm

5 0

3 years ago