D. Budgeting time, avoiding stress, and prioritizing.
Given: Mass m = 44 Kg; Velocity v = 10 m/s
Required: Kinetic energy K.E = ?
Formula: K.E = 1/2 mv²
K.E 1/2 (44 Kg)(10 m/s)²
K.E = 2,200 Kg.m²/s²
K.E = 2,200 J Answer is A
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In layman's term: </span>like charges don't attract while opposite charges do<span>electrostatic forces between point A( which is charged) and point B (which is also charged) are proportional to the charge of point A and point B. </span><span>there is also something else about this law that I don't quite remember.</span>
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<span />Here is the formula:
<span>F = k x Q1 x Q2/d^<span>2</span></span>
<span>What the formula means:</span>
F=force between charges
Q1 and Q2= amount of charge
d=distance between these two charges
k= Coulombs constant (proportionally constant)
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I think that about covers it and hopefully this helped.
Communicating the findings is part of a scientific investigation! The last option
Answer:
The work done in stretching the spring is 0.875 J.
Explanation:
Given that,
Force = 140 N
Natural length = 60-40 = 20 cm
Stretch length of the spring = 65-60 = 5 cm
We need to calculate the spring constant
Using formula of Hooke's law
We need to calculate the work done
On integration
Hence, The work done in stretching the spring is 0.875 J.
