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zysi [14]
4 years ago
12

A chunk of paraffin (wax) has a mass of 50.4 grams and a volume of 57.9 cm3. What is the density of

Physics
1 answer:
ExtremeBDS [4]4 years ago
6 0
Formula\ for\ density:\\\\
p=\frac{m}{V}\\p-density,\\m-mass,\\V-volume\\\\
Data:\\
m=50,4grams\\
V=57,9cm^3\\\\
p=\frac{50,4g}{57,9cm^3}=0,87\frac{g}{cm^3}\\\\Density\ of\ paraffin\ is\ equal\ to\ 0,87\frac{g}{cm^3}.

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Answer:

Final speed of the train is 7.5 m/s

Explanation:

It is given that,

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It starts from rest and travels for 5.0 s. We have to find the final velocity of the train. By using first equation of motion as :

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Here, train starts from rest so, u = 0

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magnitude of magnetic force on the proton is given as

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