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3 years ago

32km/s for 30 minutes

Mathematics

1 answer:

Darina [25.2K]3 years ago

3 0

Answer:

56700

Step-by-step explanation:

So convert 30 minutes into seconds.

30 * 60 = 1800

32 * 1800 = 56700

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3 years ago

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Order the values from least to greatest |2|, -3, |-5|, -1, 6

Burka [1]

Answer:

-1, -3, 2, 5, 6

Step-by-step explanation:

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2 years ago

50 points

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Step by step explanation

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3 years ago

A projectile is launched from the ground at an angle of theta above the horizontal with an initial speed of v in ft/s. The rang

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Answer:

$\theta=24.4^\circ$

Step-by-step explanation:

The formula you wrote has the fraction the other way around. You can find that the range of a projectile is in reality approximated by the equation $x=\frac{v^2}{g} sin(2\theta)=\frac{v^2}{32ft/s^2} sin(2\theta)$ , where we will use ft for distances.

From the given equation we have then $\frac{x32ft/s^2}{v^2} =sin(2\theta)$ , which means $\theta=\frac{Arcsin(\frac{x32ft/s^2}{v^2})}{2}$ since the arcsin is the inverse function of the sin.

Since we have x = 170 ft and v = 85 ft/s, we can substitute these values from the equation written, and we will have $\theta=\frac{Arcsin(\frac{(170ft)(32ft/s^2)}{(85ft/s)^2})}{2}$ , and from now on we have just to use a calculator, obtaining $\theta=\frac{Arcsin(0.75294117647)}{2}=\frac{48.84579804^\circ}{2}=24.4^\circ$

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3 years ago