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VMariaS [17]
3 years ago
15

Una locomotiva traina un solo vagone, che ha la sua stessa massa, con la forza di

Physics
1 answer:
gregori [183]3 years ago
3 0

Answer:

c)    F = 16000 N

Explanation:

For this exercise we use Newton's second law

         F = ma

they tell us that adding the other wagons the acceleration of the locomotive must be maintained

 

      F = m a

by adding the other four wagons

mass = 4 no

therefore to maintain the force you must also raise the same factor

         Fe = 4Fo

         Fe = 4 4000

         F = 16000 N

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An alternator provides 20 A of peak current at 100 V peak AC to a resistive electric heater. How much heating power is delivered
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3 years ago
What is one fun fact about both rubies and sapphires?
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8 0
3 years ago
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An electric train moving at 5m/s accelerates to a speed of 8m/s in 20 seconds. Fine the distance travelled in meters during the
adelina 88 [10]
<h3>Answer:  130 meters</h3>

===================================================

Explanation:

vi = 5 and vf = 8 are the initial and final velocities respectively. The change in time is t = 20 seconds.

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3 years ago
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Answer:

The speed of the laser light in the cable, c_f=2.1\times 10^8\ m/s

Explanation:

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3 years ago
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