This does not represent acceleration, it represents CONSTANT VELOCITY
Answer:
<em>Reason:- We use cotton to make the wick of a spirit lamp because cotton has thread strands which act like fine capillaries and help in drawing up a steady supply of oil in the lamp for burning by capillary action</em>
Explanation:
A: Renewable resources make cleaner energy.
D: It often costs more to produce energy from renewable resources.
E: More local suppliers can provide energy from renewable resources to customers
Explanation:
Renewable sources of energy are cleaner and more accessible source of energy. They are easily replenished.
With current usage metrics, they can satisfactorily meet the energy demand of the world without affecting their supply.
- Renewable energy include biomass, wind energy, wave energy, solar energy e.t.c
- These energy sources are easily replenished.
- To produce energy from renewable sources, it usually costs more.
- Most equipment and devices that produces energy from renewable sources are highly pricey.
- Renewable energy is the future of energy production.
- Most smart cities around the world have solely relied on harnessing this source of energy.
- They no carbon emission to the environment and would not lead to climate change.
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Answer:
Φ = 0.47 Wb
Explanation:
Given that
Vrms = 115V
f= 55 Hz
The maximum voltage V given as
The maximum current I given as
Maximum magnetic flux
Φ = I L
Now by putting the values
Φ = 0.47 Wb
Given:
The mass of each sphere is
The distance between the two spheres is r = 2 m
To find the gravitational force that one sphere exerts on the other.
Explanation:
The gravitational force is caculated by the formula
Here, the universal gravitational constant is
Substituting the values, the gravitational force will be
Final Answer: The gravitational force that one sphere exerts on the other is 1.04 x10^-8 N.