The statement about the battery which is correct is; a new substance is formed as the battery is used.
Lithium ion batteries have become part of most modern devices such as cell phone, laptop computers and other digital devices.
It shorter time of recharge and good battery life has continued to make it a top choice in the electronics industry.
The equation that describes the chemistry of lithium ion battery is;
LiC6 + CoO2 ⇄ C6 + LiCoO2
The reaction goes towards right hand side when the battery is in use and towards the left hand side when that battery is recharging.
Hence, from the equation, we can see that a new substance, LiCoO2 is formed when the battery is in use.
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The work done if the forklift is operating at full capacity is 11,900 J.
We have to recall that power is defined as the rate of doing work. The rate of doing work is defined as;
Power = Work done/time taken
When;
Power = 4950 W
Time taken = 2.40 s
Work done = Power × time taken
Work done = 4950 W × 2.40 s
Work done = 11,900 J
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X - rays are highly penetrating electromagnetic radiations that are formed when the cathode rays strikes a dense metal.
It has many characteristics such as :
- travels with the speed of light.
Answer:
<u><em>3 hours</em></u>
Explanation:
If the car takes 2 hours to go 40 miles, then the car can go 20 miles in 1 hour. Since the car is going 60 miles, it will take 3 hours.
Hope that makes sense :)
Answer:
The moment of inertia of large ring is 2MR².
(A) is correct option.
Explanation:
Given that,
Mass of ring = M
Radius of ring = R
Moment of inertia of a thin ring = MR²
Moment of inertia :
Moment of inertia is the product of the mass of the ring and square of radius of the ring.
We need to calculate the moment of inertia of large ring
Using formula of moment of inertia
Where, 
= moment of inertia at center of mass
M = mass of ring
R = radius of ring
Put the value into the formula
Hence, The moment of inertia of large ring is 2MR².
