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3 years ago

FREEEEE POINTS BRETHERENS

Physics

2 answers:

Romashka-Z-Leto [24]3 years ago

4 0

Answer:

Thank you brother.

Explanation:

Illusion [34]3 years ago

3 0

Answer:

THANK YOUUUUU

Explanation:

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Best definition of an electromagnetic wave?

Basile [38]

Answer:

Longitudinal and mechanical waves require a medium to support their transmission:

C) is the correct answer

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3 years ago

An object with a initial velocity of 0m/s accelerates at a rate of 4m/s how much time did it take to go 88m?

Citrus2011 [14]

Answer:

6.633s

Explanation:

For this equation we use the following kinematic equation:

^D = Vi(t)+(1/2)(a)(t)^2

88m-0m = 0m/s(t)+(0.5)(4m/s^2)(t)^2

88m = 2m/s^2(t^2)

t^2 = 44s

t = sqrt(44)

t = 6.633s

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3 years ago

The air is 80% Nitrogen, in what form do organisms use nitrogen?

artcher [175]

Answer:

<h2><u><em>Plants use Nitrogen</em></u></h2>

Explanation:

<h3><em>They use it for nutrients</em></h3>

6 0

3 years ago

A rod (length = 2.0 m) is uniformly charged and has a total charge of 5.0 nC. What is the electric potential (relative to zero a

Ksenya-84 [330]

Answer:

The electric potential is $V = 15.6 V$

Explanation:

From the question we are told that

The length of the rod is $L = 2.0 \ m$

The total charge of the rod is $q =5.0 nC = 5.0*10^{-9} C$

The length from the center is $d = 3.0 \ m$

The diagram illustrating the setup for this question is shown on the first uploaded image

From the diagram the potential at point A $dl$ is mathematically represented as

$dV = K \frac{dq}{l}$

Where K is the coulomb constant with a value $K = 9*10^9 \ Nm^2 /C^2$

where q is the charge in charge the rod relative to its distance from A is mathematically represented as

$dq = \frac{q}{L} dl$

This a small unit length of the rod

So $V = \frac{q}{L} \int\limits^4_2 {\frac{dl}{l} } \,$

=> $V = k\frac{q}{L} ln [\frac{4}{2} ]$

$V = k\frac{q}{L} ln2$

Substituting values

$V = 9* 10^9 * \frac{5*10^{-9}}{2} * ln 2$

$V = 15.6 V$

7 0

4 years ago

URGENT )If you drive your 1,000 kg car from sea level up to the mountain, which is 366 m above sea level, how much will you ha

Liono4ka [1.6K]

Answer:

(B) the increase in the car's potential energy is 3,660,000 J

Explanation:

Given;

mass of the car, m = 1,000 kg

height through the car was drove, h = 366 m

acceleration due to gravity, g = 10 m/s²

The increase in the car's potential energy is calculated as;

P.E = mgh

P.E = 1000 x 10 x 366

P.E = 3,660,000 J

Therefore, the increase in the car's potential energy is 3,660,000 J

4 0

3 years ago