Answer:
Explanation:
1) True. The stored energy (U) is proportional to the electric field strength (E). The electric field strength decreases when a dielectric is introduced hence inserting a dielectric decreases U.
2) False. From the formula 
, capacitance is inversely proportional to distance hence if the distance is doubled, capacitance decreases.
3) False. As the distance between the electric field and the object increases, its electric field decreases.
4) False. If a dielectric is inserted, the plates are further separated. Q stays the same.
5) True. The electric field strength decreases when a dielectric is introduced and capacitance is inversely proportional to electric field hence Inserting a dielectric increases C
6) True. If a dielectric is inserted, the plates are further separated. Q stays the same.
7) True. When the distance is doubled, U increases
Answer:
5.2 inches of snow
Explanation:
In order to calculate this we just have to multiply the number of inches of rain that it was expected to fall, and then multiply it by the ratio of snow to water and multiply it to calculate the inches of snow that it would fall:
x inches of snow:0.52 inches of water= 10 inches of snow:1 inch of water
x=10x.52
x=5.2 inches of snow
Highway: has intersection and expressway don't
Expressway: Don't have intersection and it is a high speed road.
Turnpike: A public or Private road for which a fee assessed for a passage.
Answer:
g tan(14°) = 2.44 m/s^2
Explanation:
If the pendulum is static, the tension will give us the magnitude of the acceleration of the plane.
Let T the tension of the pendulum and a the acceleration of the plane
The y-axis equation states that:
T cos(14) = mg
Similarly, for the x-axis
T sin(14) = ma
Dividing these equations we get
sin(14) /cos(15) = tan(15) = a/g
And solving for a:
a = g * tan(15)
