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2 years ago

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Jane, Andre, and Maria pick apples. Andre picks three times as many pounds as Maria. Jane picks two times as many pounds as Andr

e. The total weight of the apples is 840 pounds. How many pounds of apples does Andre pick?

1 answer:

andreyandreev [35.5K]2 years ago

8 0

Answer:

Andre picks 252 lbs of apples

Step-by-step explanation:

Maria picks 84

84 x 3 is 252

252 + 252(2) + 84 = 840

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2 years ago

A student on a piano stool rotates freely with an angular speed of 2.85 rev/s . The student holds a 1.50 kg mass in each outstre

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Answer:r'=0.327 m

Step-by-step explanation:

Given

$N=2.85 rev/s$

angular velocity $\omega =2\pi N=17.90 rad/s$

mass of objects $m=1.5 kg$

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Combined moment of inertia of stool and student $=5.53 kg.m^2$

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After Pulling off hands so that r' is the distance of masses from stool

$I_0'=2\times 1.5\times (r')^2$

Conserving angular momentum

$I_1\omega =I_2\omega _2$

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3 years ago

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3 years ago

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