3 years ago

PLEASE ANSWER FAST!!!

Mathematics

1 answer:

8090 [49]3 years ago

6 0

Answer:

There isnt a graph to see

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A brick of mass 4 kg hangs from the end of a spring. When the brick is at rest, the spring is stretched by 3 cm. The spring is t

Zielflug [23.3K]

Answer:

Step-by-step explanation:

In this system we have the force of the spring and the gravitational force. The equation that describes that is

$F_{s}+F{g}=ma\\k(y_0+y)-mg=ma$

where y0 is the equilibrium position when the string is free and y0+y is the new equilibrium position when the object is hanged of the string. By replacing by derivatives we have

$ky_0+ky-mg=ma\\mg+ky-mg=ky=ma\\\\ky=m\frac{d^2y}{dt^2}\\\\my''+ky=0$

the solution for this differential equation is (by using the characterisic polynomial)

$y(x)=Acos(kt)+Bsin(kt)\\k=\omega^2m$

hope this helps!!

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4 years ago

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What is the answer to p+12 =-18

MariettaO [177]

Answer:

p=-30

Step-by-step explanation:

p+12=-18

subtract 12 on both sides and you get p=-30

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3 years ago

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According to a survey , the residents of country a have approximately 179,300,000 dogs and cats as pets . The same survey report

Arte-miy333 [17]

Answer:

About 3.6 times greater.

Step-by-step explanation:

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nydimaria [60]

Answer:

so halve the deck is black and halve the deck is red so you have 26 black cards then divide by 5 and you get 5 with 1 card leftover

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13144 mr brill this should help

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3 years ago