Answer: Yes
The capacitor in an RC circuit (Resistor-Capacitance circuit) creates a time delay that decays exponentially. Therefore when the voltage to the bulb is removed, it takes a long time for the capacitor to completely discharge.
Although the brightness of the bulb will diminish as the capacitor discharges, the bulb will still be lit until the capacitor discharges to a voltage that is too low to sustain visible light (to the human eye) from the bulb.
Answer:
Q= 12 KJ
Heat enters to the system.
Explanation:
Given that
m= 5 kg
P₁ = 400 KPa
T₁ = 30⁰C = 303 K
Work done by the system ,W₁= 15 KJ
Work is done on the system W₂ = - 3 KJ'
Given that expansion is isothermal ,that is why temperature of the gas will remain constant.We know that internal energy of the ideal gas only depends on the temperature of the gas.That is why change in the internal energy of the gas will be zero because change in the temperature is zero.
From first law of thermodynamics
Q = W + ΔU
Q= =Heat ,W= Net Work ,ΔU =Change in the internal energy
Here ΔU = 0
Q= W
Q= 15 - 3 KJ
Q= 12 KJ
Heat enters to the system.
Note -
Work done on the system will be taken as negative and work done by the system taken as positive.
Heat added to the system will be taken as positive heat leaving from the system taken as negative.
Answer:
4.16m/s²
Explanation:
According to Newtons second law;
Fm is the moving force
is the coefficient of kinetic friction between the child and the slide
m is the mass
g is the acceleration due to gravity
a is the acceleration of the child
Substitute the given values and get the acceleration as shown;
35(9.8)sin27.5 - 0.415(35)(cos27.5) = 35a
158.38-12.88 = 35a
145.49 = 35a
a = 145.49/35
a = 4.16m/s²
Hence the acceleration of the body is 4.16m/s²
Answer:
because the mass of the apple is very less compared to the mass of earth. Due to less mass the apple cannot produce noticable acceleration in the earth but the earth which has more mass produces noticable acceleration in the apple. thus we can see apple falling on towards the earth but we cannot see earth moving towards the apple.
If y<span>ou are going to invent a new device that people can use instead of a microwave oven to warm up leftovers, the type of electromagnetic wave that would be most useful to investigate would probably be infrared waves, because these kinds of waves are associated with heat. </span>