Sorry I just need to answer
Hi there!
1.
Since the two resistors are in series, we can simply add:
2.
In series, the potential difference of each resistor (lamp) ADDS UP. We can begin by finding the current through the circuit using Ohm's law:
Plug in the values:
Now,
we can use Ohm's law to find the individual voltage for each lamp.
20 Ohm lamp:
5 Ohm lamp:
3.
To solve, we can use the power equation.
Plug in the values for each.
20 Ohm lamp:
5 Ohm lamp:
Answer:
0.00129rad/s
Explanation:
The angular velocity is expressed as;
v = wr
w is the angular velocity
r is the radius
Given
v = 20,000 mph
r = 4300mi
Get w;
w = v/r
w = 20000* 0.44704/4300*1609.34
w = 8940.8/6,920,162
w = 0.00129rad/s
Hence the angular velocity generated is 0.00129rad/s
Density is the ratio of a substance's mass to its volume. On the other hand, according to Archimedes' principle, the volume of water displaced is equal to the volume of the object placed on the water. Thus, the density of the metal is equal to 8.39 mL. So, the density would be
Density = 32.5 g/8.39 mL = 3.87 g/mL
