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Fofino [41]
3 years ago
9

PLEASE HURRY PLEASE

Physics
1 answer:
sleet_krkn [62]3 years ago
6 0

1. cooking is changing the food like an egg, making a fire is also a form of chemical reaction.

2. i am sorry i do not believe i know this one again sorry.

3.A baking soda volcano. The chemical reaction between baking soda (sodium bicarbonate) and vinegar (acetic acid) produces carbon dioxide gas.

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Jessica stretches her arms out 0.60 m from the center of her body while holding a 2.0 kg mass in each hand. She then spins aroun
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Answer:

a.) L = 2.64 kgm^2/s

b.) V = 4.4 m/s

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Radius r = 0.6 m

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Velocity V = 1.1 m/s

Angular momentum L can be expressed as;

L = MVr

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L = 2 × 1.1 × 0.6 = 1.32kgm^2s^-1

the combined angular momentum of the masses will be 2 × 1.32 = 2.64 kgm^2s-1

b. If she pulls her arms into 0.15 m,

New radius = 0.15 m

Using the same formula again

L = 2( MVr)

2.64 = 2( 2 × V × 0.15 )

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V = 1.32/0.3

V = 4.4 m/s

Her new linear speed will be 4.4 m/s

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Do magnets have to touch each other in order to experience a magnetic force
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