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neonofarm [45]
3 years ago
8

Need help before 10pm tomorrow night

Physics
1 answer:
konstantin123 [22]3 years ago
5 0
The first one is A and the second one would be C
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What is called the process of finding exact quantity of a substance?​
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Measurement is called the process of finding exact quantity of a substances.

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What are the conditions of the thermonuclear fusion reaction in the sun?​
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2 years ago
Why are household wall sockets alternating current (AC) instead of direct current (DC)? Select all that apply.
Bond [772]

Answer:

It is easier to scale the voltage of AC from high to low and low to high than with DC

Explanation:

typically power is used far away from the place where it's generated so to ensure that transmission losses( copper losses) are minimized voltage has to be stepped up during transmission..but due to the fact that most house hold equipment requires low voltage levels it has to be stepped down once it reaches a household/ domestic load...it's easier to do this for Ac than for DC.

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2 years ago
A pitcher exerts a force on a baseball that is 30 times the balls weight. How fast is the pitcher accelerating the ball?
iVinArrow [24]

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  Force applied on baseball = 30 times weight of the ball.

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  We have force applied is also equal to product of mass and acceleration.

                            F = ma = 30 x mg

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   So, pitcher is accelerating the ball at 30 times of acceleration due to gravity = 294 m/s²

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3 years ago
A draft is made of a plastic block with a density of 650kg/m^3, and its dimensions are 2.0mx3.0mx5.0m ,what is the raft's appare
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Weight in water = mass of block - mass of volume of displaced water
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3 years ago
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