In a homogeneous mixture, the ingredients are distributed evenly throughout the mixture, while in a heterogeneous mixture, the ingredients are unevenly distributed.
Hi there!
We can begin by calculating the voltage drop across the 30 Ω resistor using the equation:
V = IR
V = Potential Difference (V)
I = Current (A)
R = Resistance (Ω)
Calculate the voltage. Recall that the current is CONSTANT across a series circuit.
V = 0.12 × 30 = 3.6 V
Voltage ADDS UP in a series, so:
Total V = V1 + V2
6 = 3.6 + V2
<u>V2 = 2.4V. The correct answer is A.</u>
Answer:
<h2>0.245cm/min</h2>
Explanation:
The volume of the spherical balloon is expressed as V = 4/3πr³ where r is the radius of the spherical balloon. If the spherical balloon is inflated with gas at the rate of 500 cubic centimetres per minute then dV/dt = 500cm³.
Using chain rule to express dV/dt;
dV/dt = dV/dr*dr/dt
dr/dt is the rate at which the radius of the gallon is increasing.
From the formula, dV/dr = 3(4/3πr^3-1))
dV/dr = 4πr²
dV/dt = 4πr² *dr/dt
500 = 4πr² *dr/dt
If radius r = 40;
500 = 4π(40)² *dr/dt
500 = 6400π*dr/dt
dr/dt = 500/6400π
dr/dt = 5/64π
dr/dt = 0.245cm/min
Hence, the radius of the balloon is increasing at the rate of 0.245cm/min
The answer is two (4 -3)
Zero is not a SF
