Answer:
I think the answer is As you increase the current the resistance increases too.
Answer:
(a): When the four resistors are connected in series the equivalent resistor value is Req= 48Ω
(b): when the four resistors are connected in parallel the equivalent resistor value is Req=3Ω
Explanation:
R=R1=R2=R3=R4= 12Ω
(a)
Req= R1+R2+R3+R4
Req= 48 Ω
(b)
Req= (1/12 * 4)⁻¹
Req= 3 Ω
Momentum, p = m.v
m of the girl = 60.0 kg
m of the boat = 180 kg
v of the girl = 4.0 m/s
A) Momentum of the girl as she is diving:
p = m.v = 60.0 kg * 4.0 m/s = 24.0 N/s
B) momentum of the raft = - momentum of the girl = -24.0 N/s
C) speed of the raft
p = m.v ; v = p/m = 24.0N/s / 180 kg = -0.13 m/s [i.e. in the opposite direction of the girl's velocity]
Answer:
Explanation:
We are given that
Work done by the system= J
Heat transfer into the system= J
Heat transfer to the environment= J
We have to find the change in internal energy
By first law of thermodynamics
Substitute the values then we get
Hence, the change in internal energy =