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3 years ago

How long will it take to travel 200.000 m [N] traveling 10 m/s [N]?

Physics

2 answers:

gtnhenbr [62]3 years ago

8 0

Answer: here are 1,000m in a km, so 200km is 200,000m

200,000m/10m/s = 20,000s

Explanation:

Shalnov [3]3 years ago

3 0

Answer:

15.9k

Explanation:

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A 1kg mass is thrown to a height of 2cm. what is the potential energy

prohojiy [21]

Mass=m=1kg
Height=h=2cm=0.02m
Acceleration due to gravity=g=10m/s^2

$\\ \tt\hookrightarrow P.E=mgh$

$\\ \tt\hookrightarrow PE=1(10)(0.02)$

$\\ \tt\hookrightarrow PE=0.2J$

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2 years ago

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The speed of light is around 3.000E5 km/s. It takes approximately 9.221 seconds for light reflected from the moon Vega to reach

laila [671]

Answer:

$d=2.77\cdot 10^6\ Km$

Explanation:

Speed

The speed is calculated as the ratio of the distance d by the time t:

$\displaystyle v=\frac{d}{t}$

If we need to calculate the distance, the equation is solved for d:

d=v*t

The speed of light is

$v=3\cdot 10^5\ Km/s$

It takes t=9.221 seconds for light reflected from the moon Vega to reach planet Xartan.

We can calculate the average distance the light traveled:

$d=3\cdot 10^5\ Km/s*9.221$

$d=2,766,300\ Km$

Or, in scientific notation:

$\mathbf{d=2.77\cdot 10^6\ Km}$

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3 years ago

An important difference between waves and classical particles is that A. waves cannot interfere. B. particles cannot interfere.

pishuonlain [190]

C. waves can only interfere destructively.

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3 years ago

Change of motion are caused by

AlexFokin [52]

The only thing that can change the motion of an object is a net (unbalanced)force acting on it. This is given by Newton's First Law of Motion, sometimes also called the Law of Inertia.

I hope this helps!

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3 years ago

A weight of 50.0 N is suspended from a spring that has a force constant of 210 N/m. The system is undamped and is subjected to a

Fittoniya [83]

Answer:

The maximum value of the driving force is 1044.01 N.

Explanation:

Given that,

Weight of the object, W = 50 N

Force constant of the spring, k = 210 N/m

The system is undamped and is subjected to a harmonic driving force of frequency 11.5 Hz.

Amplitude, A = 4 cm

We need to find the maximum value of the driving force. The force is given by the product of mass and maximum acceleration as :

$F=mA\omega^2$ .....(1)

A is amplitude

m is mass,

$m=\dfrac{W}{g}\\\\m=\dfrac{50}{10}\\\\m=5\ kg$

$\omega$ is angular frequency

Angular frequency is given by :

$\omega=2\pi f\\\\\omega=2\pi \times 11.5\\\\\omega=72.25\ rad/s$

Equation (1) becomes :

$F=5\times 0.04\times 72.25^2\\\\F=1044.01\ N$

So, the maximum value of the driving force is 1044.01 N.

6 0

3 years ago