Answer:
A.
Explanation:
In a parallel circuit, there's only one path for the current to travel.
Answer:
Increase in temperature of water = 0.53 °C
Explanation:
Change in mechanical energy = Potential energy
Potential energy = mgh
Mass, m = Mass of 1 L water = 1 kg
Acceleration due to gravity, g = 9.81 m/s²
Height, h = 225 m
Potential energy = 1 x 9.81 x 225 = 2207.25 J
Because of this 2207.25 J water gets heated.
Heat energy, E = mcΔT
Mass, m = Mass of 1 L water = 1 kg
Specific heat of water, c = 4200 J/kg/C
Energy, E = 2207.25 J
Change in temperature, ΔT = ?
Substituting
2207.25 = 1 x 4200 x ΔT
ΔT = 0.53 °C
Increase in temperature of water = 0.53 °C
Answer:
yes because if red light was natural then it should cause more damage because that how it is
Answer:
The electrostatic potential within the conductor will be negative and constant throughout the conductor.
Explanation:
Whenever a conductor is charged the total charge is spread throughout the entire surface uniformly. Inside the conductor the net electric field is always zero. Also we know if e the electric field and V is the potential, then
Now as in this case electric field within the conductor is zero, so potential (V) has to be constant.
Answer:
Part a)
Part b)
Part c)
Explanation:
Part a)
Object is thrown sideways
since the railroad car is moving on the track so there is no change in the momentum in the direction of motion of the car
so final speed of the car will not change
Part b)
By momentum conservation we can write
Part c)
Again by momentum conservation we have