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2 years ago

10

The density of this material is 2 g/cm3 there are 24 cm3 find the total mass

1 answer:

Fynjy0 [20]2 years ago

7 0

Answer:

<h2>The answer is 48 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 2 × 24

We have the final answer as

<h3>48 g</h3>

Hope this helps you

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What is the approximate energy required to raise the temperature of 1.00 L of hydrogen by 90 °C? The pressure is held constant a

Oliga [24]

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2 years ago

What two angles of elevation will enable a projectile to reach a target 15 km downrange on the same level as the gun if the pro

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Angle of projection: 28 degrees or 62 degrees

Explanation:

A projectile consists of two independent motions:

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From the equations of motion, it is possible to derive an expression for the range of a projectile, which is:

$d=\frac{u^2 sin(2\theta)}{g}$

where:

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d = 15 km = 15,000 m is the range

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Solving the equation for $\theta$ , we find the possible angle:

$sin (2\theta) = \frac{dg}{u^2}=\frac{(15,000)(9.8)}{(421)^2}=0.829$

Which gives two values of the angle:

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Learn more about projectile:

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