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irga5000 [103]
3 years ago
6

An electric wheel chair is designed to run on a single 12-V battery rated to provide 100 ampere-hours. How much energy is stored

in this battery?
Physics
1 answer:
Paha777 [63]3 years ago
5 0

Explanation:

It is given that,

Voltage of the battery, V = 12 V

Current, I = 100 ampere-hours

Energy stored is given by the product of power and time taken. So,

E=P\times t

P is the power, P=V\times I

P=12\times 100

P = 1200 watts

This power can be used for 1 hour or 3600 seconds

Energy, E=1200\times 3600

E = 4320000 J

So, the energy stored in this battery is 4320000 J. Hence, this is the required solution.

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6 0
2 years ago
During a circus act, a performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of m1 = 7.5
vladimir1956 [14]

Answer:

Explanation:

We shall apply law of conservation of momentum .

total Initial momentum =

7.5 x 8.85 = 66.375 kg m / s

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3 0
3 years ago
An 8.7 g bullet is accelerated in a rifle barrel 105 cm long to a speed of 465 m/s. Use the work-energy theorem to find the aver
Viktor [21]

Answer:896 N

Explanation:

Given

mass of bullet m=8.7 gm

Length of barrel d=105 cm=1.05 m

final velocity v=465 m/s

initial velocity u=0 m/s

Work done by all the forces is equal to change in kinetic Energy

F\cdot d=\frac{1}{2}\times mv^2-0

F_{avg}\times 1.05=\frac{1}{2}\times 8.7\times 10^{-3}\times 465^2

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