Homework Statement
The figure below shows a load resistor that has a resistance of RL = 20.6 Ω connected to a high-pass filter consisting of an inductor that has inductance L = 3.20-mH and a resistor that has resistance R = 4.00-Ω. The output of the ideal ac generator is given by = (100 V)...
Homework Statement
The coaxial cable from a television or other device has an inner conductor with diameter of 1 mm and the shield of diameter 5 mm. Assume a plausible value for the dielectric constant (3 ≤ κ ≤ 5) of the dielectric separating the two conductors and calculate the capacitance...
right so these are my numbers:
4*pi*(-163)*(8.85x10^-12)*(6.37x10^6)^2
but this produces a wrong answer (has to be within about 97% accuracy) of -735562.52C
or -735.56 kC
Homework Statement
The electric field just above the surface of Earth has been measured to typically be 163 N/C pointing downward.
What is the total charge on Earth's surface implied by this measurement?
Homework Equations
∫EdA = Qinside/ɛo
The Attempt at a Solution
I...
Homework Statement
The figure below shows a portion of an infinitely long, concentric cable in cross section. The inner conductor has a linear charge density of λ = 6.10 nC/m and the outer conductor has no net charge.
http://www.webassign.net/tipler/23-36alt.gif
(a) Find the electric field...
Homework Statement
Consider two concentric conducting spheres. The outer sphere is hollow and initially has a charge Q1 = -6Q deposited on it. The inner sphere is solid and has a charge Q2 = +1Q on it.
(a) How much charge is on the outer surface?
How much charge is on the inner surface...
Homework Statement
In a pool game, the cue ball, which has an initial speed of 8.0 m/s, make an elastic collision with the eight ball, which is initially at rest. After the collision, the eight ball moves at an angle of 30° to the original direction of the cue ball.
Homework Equations
V8...
Homework Statement
A 56-kg woman contestant on a reality television show is at rest at the south end of a horizontal 141-kg raft that is floating in crocodile-infested waters. She and the raft are initially at rest. She needs to jump from the raft to a platform that is several meters off the...
Ok I see now,
Total*.0084 = 4x10^31
Mass entering per second = 4x10^31*.9916/.0084 = 4.72x10^33
4.72x10^33 / ((3x10^8)^2) = 5.247x10^16 kg/s is the right answer, thanks for the help!
Homework Statement
If a black hole and a "normal" star orbit each other, gases from the normal star falling into the black hole can have their temperature increased by millions of degrees due to frictional heating. When the gases are heated that much, they begin to radiate light in the X-ray...
Homework Statement
A curve of radius 15 m is banked so that a 930 kg car traveling at 48.0 km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. You are commissioned to tell the local police the range of speeds at which a car can travel...