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alekssr [168]
3 years ago
10

1. An asphalt block has a mass of 90 kg and a volume of 0.075 m. Determines the density of the asphalt.

Physics
1 answer:
Kisachek [45]3 years ago
7 0

Answer:

1. Density = 1200[kg/m^3]; 2. Volume= 0.005775[m^3], mass= 15.59[kg]

Explanation:

1. We know that the density is defined by the following expression.

Density = \frac{mass}{volume} \\where:\\mass=90[kg]\\volume=0.075[m^{3} ]\\density=\frac{90}{0.075} \\density=1200[\frac{kg}{m^{3} }]

2. First we need to convert the units to meters.

wide = 35[cm] = 35/100 = 0.35[m]

long = 11 [dm] =  11 decimeters = 11/10 = 1.1[m]

Thick = 15[mm] = 15/1000 = 0.015[m]

Now we can find the density using the expression for the density.

density= \frac{mass}{volume} \\where:\\volume = wide*long*thick\\volume=0.35*1.1*0.015 = 0.005775[m^3]\\\\mass= density*volume = 2700*0.005775 = 15.59[kg]

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Explanation:

All the digits shown on a measuring device and one estimated digit are all considered to be significant.

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Measuring devices such as calculators gives their values in significant digits.

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What is the force of a 24.52 kg Television dropped on Pluto (acceleration of 0.59 m/s2)
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The weight of an object (which is the force of gravity experienced by an object) at a certain location is given by

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