Answer:
Object A will get 200 & object B will get 400 Potential Energy
Explanation:
Potential Energy = mgh (mass x gravity x height)
For Object A :-
2 (mass) x 10 (approx gravity on Earth) x 10 (distance/height)
= 200
For Object B :-
4 x 10 x 10
= 400
Hence Object B will have High Potential Force than A.
Hope it helps. Thanks
Other than for the chemical symbol, the electron dot diagram for silicon would be the same as it was for carbon.
The reason for this is because electron dot diagrams are used to represent the electrons in the outermost, or valence, shell of an atom. In a group of the periodic table, all of the elements have the same number of valence shell electrons. This means that all elements belonging to the same group have the same electron dot diagram, except for the symbol of the element that is within the diagram.
Answer:
v=2.13 m/s
Explanation:
Given that
L= 3 ft
We know that
1 ft = 0.3048 m
L=0.91 m
a= g/2
F= m a
F= m g/2 = K L
k= (mg)/(2L)
Now from energy conservation
Kinetic energy of train = potential energy of the spring
k= (mg)/(2L)
By putting the values
( take g =10 m/s²)
v=2.13 m/s
<u>Answer</u>
D. She should increase the number of coils in the primary winding.
<u>Explanation</u>
A transformer is a device that is used to step down or step up a the voltage.
It has two coils, primary and secondary that are used to determine how much the voltage changes.
To decrease the voltage the ratio of number of coils in the primary to the number of coils in the secondary should be big.
To reduce the voltage, D. She should increase the number of coils in the primary winding.