I think 8.4
i learned that magnitude 8.4 earthquake had hit japan before
Q before connected = Q after connected C1V1+C2V2 = (C1+C2) V
C1= 3×10^-6 F
V1= 480v
C2= 4×10^-6 F
V2= 500v
(3×10^-6)×(480) + (4×10^-6)×(500) = (3×10^-6 + 4×10^-6) × V
Simplifying the above, we get:
( 1440× 10^-6) + (2000 ×10^-6) = (7 × 10^-6) × V.
Further simplified as:
3440 × 10^-6 = 7 × 10^-6 × V
Making V the subject
V = 491.43volts
Therefore the potential difference across each capacitor is 491.43v
Answer:
Weight = 88N
Explanation:
Given the following data;
Acceleration due to gravity on moon = 1.6m/s²
Weight on earth = 539N
To find the weight on moon.
First of all, we would calculate the mass;
Weight = mass * acceleration due to gravity.
We know that acceleration due to gravity on earth is equal to 9.8m/s²
Substituting into the equation, we have;
539 = mass * 9.8
Mass = 539/9.8
Mass = 55 kg.
Now, we solve for the weight on moon.
Weight = 55 * 1.6
Weight = 88N
Wind turbines work on a simple principle: instead of using electricity to make wind—like a fan—wind turbines use wind to make electricity. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity.
Answer:
A) 1.9m/s
Explanation:
Use the equation v=d/t
The time is 10 seconds. The distance is more complicated because it’s a circle so u use the equation for circumference C=2•pi•r. So you just do the circumference over time and get the answer. Hope this helps