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zysi [14]
3 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]3 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:

A 10 N force pointing up

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Since they mentioned only one vertical force pointing down (10 N), there must be another one of same magnitude but pointing in opposite direction (up).

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Answer:

Part a)

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Part b)

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Part c)

F = 0.25 N

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As we know that force on a current carrying wire is given as

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now we have

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Part b)

For 68.1 cm length wire we have

F = iLB sin\theta

here we know that

cos\theta = \frac{68.1}{166}

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so we have

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Part c)

For 151 cm length wire we have

F = iLB sin\phi

here we know that

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F = (4.03)(1.51)(99.3 \times 10^{-3})sin24.5

F = 0.25 N

Part d)

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