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3 years ago

9

Spray-applied coatings must be applied according to transfer efficiency standards using what technologies? A) High volume, low p

ressure (HVLP) guns B) Electrostatic guns C) Airless guns D) All of the above

Advanced Placement (AP)

1 answer:

BaLLatris [955]3 years ago

6 0

D) All of the above is the answer

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3 years ago

A ball is thrown into the air at a velocity of 44 feet per second. Its height in feet, h after t seconds is represented by the e

Lady_Fox [76]

Answer:

0.447 sec

Explanation:

velocity = distance/ time

distance 'h' is a function of time 't' given by

$h = 12t^{2} + 44t + 16$

⇒ differentiating equation

⇒ velocity = $\frac{dh}{dt} = 24t + 44$

⇒ acceleration = $\frac{d^{2}h }{dt^{2} }$ = 24 $\frac{ft}{sec^{2} }$

deceleration due to gravity = -9.8 m/ $sec^{2}$ = - 9.8 x 3.281 = - 32.154 ft/ $sec^{2}$

Net deceleration = 24 - 32.154 = - 8.15 ft/ $sec^{2}$

at maximum height v = 0

$v^{2}$ = $u^{2}$ + 2ah

⇒ 0 = $44^{2}$ + 2 (-8.15)h

⇒ h = 118.72 ft⇒

118.72 = 12 $t^{2}$ + 44t + 16

⇒ $12t^{2} +44t$ - 102.72 = 0

⇒ t = -44 ± $\sqrt{44^{2} - 4(12)(102.72) }$ / (2 x 12)

t = 0.447 sec

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3 years ago

If all courses were regular (not honors or AP) 1 credit classes, calculate the student's GPA based on the following grades:

Jlenok [28]

Answer:

2.83

Explanation:

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3 years ago

Given a right circular cone, you put an upside-down cone inside it so that its vertex is at the center of the base of the larger

Paha777 [63]

Answer:

Pretty sure I figured it out, 4/27. I found this by simplifying:

((1/3pi (h - 2/3 h))(4/9 r^2)) / (1/3 pi r^2 h)

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3 years ago

1) The area of the city where retail and office activities historically were clustered was the

Fynjy0 [20]

The answer is A) central business district

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3 years ago