3 years ago

Please help ASAP!!!!!!!!!

Mathematics

1 answer:

Ray Of Light [21]3 years ago

8 0

180-104=76

76x2=152

Answer is 152

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Hey could anyone help me out it's currently 3:40 am where I am and I am making Ramen and don't know what I'm doing so could you

Yuliya22 [10]

Answer:3.75

Step-by-step explanation:

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2 years ago

A spinning giant star of initial radius R1 and angular speed ω1 suddenly collapses radially inward reaching a new radius R2 = 0.

tiny-mole [99]

Answer:

K1/K2=4

Step-by-step explanation:

The kinetic energy of a rotating sphere is given by:

$K=\frac{I*\omega^{2} }{2}$

The moment of inertia of a solid sphere is given by

$I=\frac{2MR^{2} }{5}$

The initial kinetic energy is therefore

$K_1=\frac{2MR^{2}*\omega^{2} }{10}$

$K_1=\frac{MR_1^{2}*\omega^{2} }{5}$

The final kinetic energy is given by

$K_2=\frac{MR_2^{2}*\omega^{2} }{5}$

Therefore the relation K1/K2 if R2 = 0.5R1

$\frac{K_1}{K_2} =\frac{5M(R_1)^{2}*\omega^{2} }{5*M(0.5R_1)^{2} \omega^{2}}$

The text says nothing about the final angular velocity just the collapse of the collapse of the radius

$\frac{K_1}{K_2} =\frac{1 }{(0.5)^{2} }=4$

3 0

3 years ago

ILL GIVE THE BRAINLIEST pls help me with this question EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY IF YOU PUT A WRONG ANSW

Effectus [21]

Answer:

90mm cubed

Step-by-step explanation:

6 0

3 years ago

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If 3× :8=24:16find the value of x given that ×>0

ASHA 777 [7]

Answer: 4

Step-by-step explanation:

3(x) : 8

*2 : *2

= 24 : 16

⇒ 6x = 24

⇒ x = 4

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3 years ago

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Doe's anyone understand this?

Kitty [74]

just subtracting by 2x on both sides

hope this helps

5 0

2 years ago