I believe the answer is A. shorter wires
Answer:
If you apply a force to separate 2 opposite poles, the potential energy of the system increases.
Answer:
a) 
Explanation:
From the question we are told that:
Open cart of mass 
Speed of cart 
Mass of package 
Speed of package at end of chute 
Angle of inclination 
Distance of chute from bottom of cart 
a)
Generally the equation for work energy theory is mathematically given by

Therefore





Answer:
Explanation:
3.4 = 18.87x + 23.97
collecting like terms
3.4 - 23.97 = 18.87x
-20.57 = 18.87x
dividing both sides by 18.87
x = -20.57/18.87
x= -1.09
The cost of electricity be $ 38.544.
<h3>What is electricity?</h3>
Electricity is the passage of charges in a conductor. From one end of the terminal to the other, charges are transmitted. Usually, the terminal moves from positive to negative. Since the nucleus holds the electrons loosely, they can move freely throughout the body.
Watts are units of power used to measure electrical output.
Price of electricity is $ 0.110 per kWh .
If a 40-W porch light on day and night for a year, total amount of electricity spend = power of the bulb × time
= 40 W × 1 year
= 40 W × 365 day
= 40 W × 365 ×24 h
= 350400 Wh
= 350.4 kWh.
Hence, the cost of electricity be = $350.4 × 0.110 = $ 38.544.
Learn more about electricity here:
brainly.com/question/8971780
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