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Arlecino [84]
3 years ago
12

A train’s mass is 18181.81 kg. What is its weight?

Physics
2 answers:
wel3 years ago
7 0

Answer:

The trains mass in pounds would be 40084.029 if you would round it to the hundreths

Explanation:

Anni [7]3 years ago
6 0

Answer:

178,182 N

Explanation:

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A particle is moving with (SHM) of period 8.0s and amplitude5.0m
nadezda [96]

Answer:

velocity(x)=15\,\frac{\pi}{4}\,cos(\frac{\pi}{4}x)

Max speed = \frac{15\, \pi}{4} \,\, \frac{m}{s}

Max acceleration = \frac{15\,\pi^2}{16} \,\,\frac{m}{s^2}

Explanation:

Given the description of period and amplitude, the SHM could be described by:

f(x)=5\,sin(\frac{\pi}{4}x)

and its angular velocity can be calculated doing the derivative:

f(x)=5\, \,sin(\frac{\pi}{4}x)\\f'(x)=5\,\frac{\pi}{4}\,cos(\frac{\pi}{4}x)

And therefore, the tangential velocity is calculated by multiplying this expression times the radius of the movement (3 m):

velocity(x)=15\,\frac{\pi}{4}\,cos(\frac{\pi}{4}x)  and is given in m/s.

Then the maximum speed is obtained when the cosine function becomes "1", and that gives:

Max speed = \frac{15\, \pi}{4} \,\, \frac{m}{s}

The acceleration is found from the derivative of the velocity expression, and therefore given by:

acceleraton(x)=-15\,\frac{\pi^2}{16}\,sin(\frac{\pi}{4}x)

and the maximum of the function will be obtained when the sine expression becomes "-1", which will render:

Max acceleration = \frac{15\,\pi^2}{16} \,\,\frac{m}{s^2}

6 0
3 years ago
Use this excerpt from the text to answer the question. "Some people insist the United States is more properly called a republic
Bond [772]
Political power is utilized in a roundabout way by chose authorities, not straightforwardly by the natives themselves. Oftentimes, legislators and numerous standard Americans allude to the United States as a majority rules system. Others locate this disturbing in light of the fact that, not at all like in a vote based system where nationals vote specifically on laws, in the United States, chose agents do – and, thusly, the U.S. is a republic.
4 0
4 years ago
A cannonball is shot up in the air with a vertical speed of 24 miles what is the cannon balls vertical speed just before it hits
meriva

Answer:

I think it will back towards the earth because earth gravitional field will attract to Wards

8 0
3 years ago
In a fusion reactor, the high temperature of the order of 108 k is required in order that what condition is met?
laila [671]
In order for a fusion reactor to function well, one of the important conditions to be met is a high temperature at 108 million Kelvin. This is six times hotter than the temperature of the sun's core. At this temperature, the element hydrogen's state is a plasma, not a gas, where the atoms are stripped of electrons and thus can move freely. This is an ideal condition to enable the reactor to function where it enables the hydrogen atoms to gather enough energy for the reaction which will occur in the later stages of the process. <span />
4 0
3 years ago
If the electron has a speed equal to 9.10 x 10^6 m/s, what is its wavelength?
Fudgin [204]

Answer:

\lambda=8.006\times 10^{-11}\ m

Explanation:

Given that,

The speed of an electron, v=9.1\times 10^6\ m/s

We need to find the wavelength of this electron. It can be calculated using De -broglie wavelength concept as :

\lambda=\dfrac{h}{mv}

h is the Planck's constant

\lambda=\dfrac{6.63\times 10^{-34}}{9.1\times 10^{-31}\times 9.1\times 10^6}

\lambda=8.006\times 10^{-11}\ m

So, the wavelength of the electron is 8.006\times 10^{-11}\ m. Hence, this is the required solution.

5 0
3 years ago
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