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konstantin123 [22]
3 years ago
6

The density of aluminum is 2.70 g/ml. A piece of aluminum foil has a mass of 44 g. What is the volume of this piece of aluminum

foil?
A) 0.06 ml B) 1.63 ml C) 16.3 ml D) 118.8 ml
Physics
1 answer:
anyanavicka [17]3 years ago
7 0

Answer:

C) 16.3 ml

Explanation:

Density is equal to the ratio between the mass of an object and its volume:

d=\frac{m}{V}

where

m is the mass

V is the volume

In our problem, we know:

- density of aluminium: d=2.70 g/mL

- mass of the aluminium foil: m=44 g

So we can re-arrange the equation above and use these data to find the volume of the piece of aluminium foil:

V=\frac{m}{d}=\frac{44 g}{2.70 g/mL}=16.3 mL

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We have that the  speed of a body covering a distance of 320 km in 4h is mathematically given as

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<h3 /><h3>
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From the question we are told

calculate the speed of a body covering a distance of 320 km in 4h

Generally the equation for the  Speed  is mathematically given as

V=\frac{distance }{time}\\\\Therefore\\\\V=\frac{320*1000}{4*60*60}\\\\

V=22.22m/s

Hence

The  speed of a body covering a distance of 320 km in 4h is

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4 0
2 years ago
Each corner of a right-angled triangle is occupied by identical point charges "A", "B", and "C" respectively. Draw a sketch of t
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Answer:

Fnet = F√2

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Explanation:

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Fnet = √(F² + F²)

Fnet = F√2

The force between two charges particles is:

F = k q₁ q₂ / r²

where

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If we say the charge of each particle is q, then:

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where

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