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borishaifa [10]
3 years ago
5

What is the difference between free fall and weightlessness??

Physics
1 answer:
joja [24]3 years ago
3 0
When you are in free fall, the force of gravity is stronger than your velocity perpendicular to where you're falling, and you move at a constant speed downwards.

Under feelings of weightlessness, you are still being pulled by gravity, but your perpendicular velocity and distance from the source can cancel each other out.
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Why does the total amount of energy before and after any energy transformations remain the same?
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The amount of energy before and after any energy transformations remain the same because energy cannot be created or destroyed. From the law conservation of energy; any time energy is transferred between two objects, or converted from one form into another, no energy is created and none is destroyed. The total amount of energy involved in the process remains the same.
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3 years ago
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A flat metal washer (a circular plate with a circular hole cut out of it) is heated. Does the hole get smaller, larger, or remai
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3 years ago
in baseball, a pitcher can accelerate 0.15kg ball from rest to 98 mi/hr in a distance of 1.7m. (a) What is the average force exe
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Answer:

F=84.68 N

Required force increases

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v^{2}=u^{2} +2as\\ 98^{2}*1609.344^{2}/(60*60)^{2}=0+2*a*1.7\\a = 98^{2}*1609.344^{2}/((60*60)^{2}*2*1.7)\\a = 564.50m/s^{2} \\

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F=ma\\F=0.15*564.50  \\F=84.68 N

When the mass increased the force increases as the equation.

F=ma

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3 years ago
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The body of rules and procedures that guide the measurement and communication of financial accounting information in the United
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Generally Accepted Accounting Principles (GAAP)

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The body of rules and procedures that guide the measurement and communication of financial accounting information in the United States is known as:

4 0
3 years ago
A strong lightning bolt transfers about 25 c to earth. how many electrons are transferred? the elementary charge is 1.60218 × 10
tensa zangetsu [6.8K]
The total charge transferred is Q=25 C. This total charge consists of N electrons, each one with charge e=1.6 \cdot 10^{-19}C. To find N, the number of electrons transferred, we must simply divide the total charge by the charge of a single electron:
N= \frac{Q}{e}= \frac{25 C}{1.6 \cdot 10^{-19}C}=1.56 \cdot 10^{20}
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3 years ago
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