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lubasha [3.4K]
2 years ago
9

An object floats in a beaker as shown. when it was put into the beaker, it displaced an amount of water into the graduated cylin

der at the left. given that the liquid in the beaker is water (density = 1 g/cm3), what is the mass of the object?
Physics
1 answer:
Tanzania [10]2 years ago
6 0

Answer:

answer is  C. 10 g

Explanation:

: When an object floats, it displaces an amount of water that has the same mass as itself. Therefore, the mass of the water in the graduated cylinder is equal to the mass of the object. We can see that there are 10 mL of water in the graduated cylinder. We also know that the density of water is 1 g/mL. Since each mL of water has a mass of 1 g, then 10 mL of water has a mass of 10 g. If the mass of the displaced water is 10 g, then the mass of the floating object is also 10 g.

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Two uniform solid cylinders, each rotating about its central (longitudinal) axis, have the same mass of 3.56 kg and rotate with
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(b) 14530.6 J

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(a) radius, r = 0.330 m

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The formula for the rotational kinetic energy is given by

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(b) radius, r = 0.714 m

I = 0.5 x 3.56 x 0.714 x 0.714 = 0.907 kgm^2

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3 0
3 years ago
What is the speed of a cyclist that rides west 88 km in 32 minutes?
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Answer:

The speed of the cyclist is 2.75 km/min.

Explanation:

Given

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  • Time t = 32 minutes

To determine

We need to find the speed of a cyclist.

In order to determine the speed of a cyclist, all we need to do is to divide the distance covered by a cyclist by the time taken to cover the distance.

Using the formula involving speed, time, and distance

s=\frac{d}{t}

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s=\frac{d}{t}

s=\frac{88}{32}

Cancel the common factor 8

s=\frac{11}{4}

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Therefore, the speed of the cyclist is 2.75 km/min.

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