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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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Answer:

If resistance increases current decreases.

Explanation:

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  • from the relation given below, we can clearly see the relation between current and resistance;

                              V=IR

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This relation shows that when resistance increases,current decreases.

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A pitcher hurls a 0.25kg ball around a vertical circular path of radius 0.6 m, applying a tangential force of 30N, before releas
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Ke up top = 1/2*.25 *225 
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3 years ago
L 1.3.5 Quiz: Using Models
arsen [322]

Answer:

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8 0
3 years ago
How many years would it take to reach the planet saturn travelling at 21 thousand miles per hour? enter your answer with 2 decim
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It would take about 4.8 years to travel from earth to Saturn.

<h3>How long would it take?</h3>

We know that speed is expressed as the ratio of distance to time. In this case, we are trying to know ow many years would it take to reach the planet Saturn travelling at 21 thousand miles per hour.

Given that;

Speed = 21 thousand miles per hour

time taken = ???

Distance = 887 million miles

Speed = distance/time

speed * time = distance

time = distance/speed

time = 8.87 * 10^8 miles/2.1 * 10^4  miles per hour

time = 4.22 * 10^4 hours

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4.22 * 10^4 hours  make 4.22 * 10^4 hours * 1 year/8.766 * 10^3

= 4.8 years

Learn more about Saturn:brainly.com/question/12181523

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8 0
1 year ago
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