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3 years ago

Does anyone know about this : Applying the Parallelogram of Forces Law. Or does anyone know of any notes about that???

Physics

1 answer:

Jobisdone [24]3 years ago

3 0

Answer:

Explanation:

The force is a vector magnitude, it has direction, course and intensity.

Suppose that you have given two forces at a certain angle and that you need to find the resultant force then you apply the Parallelogram of force low.

You represent the two forces in the drawing as vectors and connect their origin to the same point and then construct a parallelogram over them.

The longer diagonal represents the resultant force.

God is with you!!!

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What is the current flowing through a 10 resistor in a parallel circuit with a 120 V potential difference across it?

Elena L [17]

Answer:

let current flow be x

Explanation:

than we know potential difference = energy supply / charge then 120 = 10 /x then x=12 therefore pd = 12 v

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3 years ago

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Define time period. Give its formula.

kondaur [170]

Answer:

Part A

Time period, designated by the symbol, 'T', is defines as the time it takes for a complete cycle of an oscillation or vibration (of a wave) to transit through a given point.

The longer the time period of a wave, the lower the frequency of the wave

The unit of the time period is seconds, 's'

Part B

Mathematically, the formula for the time period is presented as follows;

f = 1/T

∴ T = 1/f

f = v/λ

∴ T = λ/v

Where;

v = The velocity of the wave;

λ = The wavelength of the wave

Explanation:

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3 years ago

A ball is thrown vertically upward.It's velocity at the highest point is?

kap26 [50]

Explanation:

BECAUSE IT WAS GOING UPWORD THEN IT'S VELOCITY WAS DECREASING -10MS¹

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3 years ago

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A car is traveling with a velocity of 5.5 m/s and has a mass of 1200 kg. What is the kinetic energy?!

vesna_86 [32]

Answer:

Explanation:

The kinetic energy of the car can be found by using the formula

$k = \frac{1}{2} m {v}^{2} \\$

m is the Mass

v is the velocity

From the question we have

$k = \frac{1}{2} \times 1200 \times {5.5}^{2} \\ = 600 \times 30.25$

We have the final answer as

Hope this helps you

3 0

3 years ago

An alien spaceship traveling at 0.600c toward the Earth launches a landing craft with an advance guard of purchasing agents and

OleMash [197]

Answer:

Explanation:

Let the velocity of lander with respect to earth be v .

In relativistic mechanism the expression for relative velocity is

v_r = $\frac{v -u}{1-\frac{uv}{c^2}}$

Given u = .6c , v_r = .8 c

Substituting the values

.8c = $\frac{v -0.6c}{1-\frac{.6c\times v}{c^2} }$

.8c-.48v = v - .6c

v = .946c

b )

Distance in terms of time = .2 ly

In relativistic mechanism , expression for relativistic time is given by the following relation

t = $\frac{t_0}{\sqrt{1-\frac{v^2}{c^2} }}$

Substituting v = .946c

t₀ = .2

t = $\frac{.2}{\sqrt{1-\frac{0.946\times .946c^2}{c^2}}}$

.2 / √.1050

= .62 ly

distance to the Earth at the time of lander launch, as observed by the aliens will be .62 ly.

8 0

4 years ago