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Keith_Richards [23]
3 years ago
6

What is the density of a substance that has a mass of 453g and a volume of 224mL?

Physics
1 answer:
Mrrafil [7]3 years ago
6 0
Density is mass per unit volume. In this case, the unit is g/ml
Mass=453g                              ρ=453g/224ml
Volume=224ml                         ρ=2.022g/ml(rounded to nearest hundredth)
Density=?
ρ=mass/volume
Therefore the density of the substance is 2.022g/ml

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Which variable is represented by the following symbol? ∑F
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Answer:

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If a bicyclist, with initial velocity of zero, steadily gained speed until reaching a final velocity of 26m/s, how far would she
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Answer:

34.45m

Explanation:

Using the equation of motion formula v² = u²+2as to get the distance travelled

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s = 34.45m

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3 years ago
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Walt and Mary are my Customers at this point.

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Some Physics questions! Please help!
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Let's use the following convention:

positive x-direction = east

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Here we have to find the north component of the velocity's airplane, which means we have to find its y-component.

We can use the formula:

v_y = v sin \theta

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v_y = (750)(sin 20)=256.5 km/h \sim 260 km/h

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