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3 years ago

What is the correct answer to a+ny=n, solving for n?

2 answers:

8 0

A + ny = n Subtract ny from both sides a = n - ny Factor out the n a = n (1 - y) Divide both sides by (1 - y) a / (1 - y) = n

AysviL [449]3 years ago

6 0

A+ny = n
a = n-ny
a = (1-y)n
a/(1-y) = n
n = a/(1-y)

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An arrow is shot vertically upward at a rate of 240 feet per second from ground level. Use the projectile formula to determine w

Juli2301 [7.4K]

Answer:

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Step-by-step explanation:

Given:

Initial velocity of the arrow is, $u=240\ ft/s or 73.152\ m/s$

The arrow goes up and come back to the same starting position. So, initial position is same as that of final position.

Therefore, displacement of the arrow is 0 m.

The displacement of the arrow is given as:

$s=ut-\frac{1}{2}gt^{2}$ (equation 1)

Plug all value in equation 1 and solve for $t$

$0=73.152\timests t-\frac{1}{2} \times9.8 \times t^{2}$

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$t=\frac{73.152}{4.9}= 14.92\ s$

∴ After 14.92 seconds, the arrow hits the ground.

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Step-by-step explanation:

The given expression is

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