Recent content by ghetto_bird25

oh ok thanks a lot

oh so jus do it for each section and add it up or make it 3/4pi*r^2 time dB/dt

Homework Statement A wire is bent into three circular segments each of radius r=9.2 cm. each segment is a quadrant of circle, ab lying in the xy plane, bc, in the yz plane, and ca lying in the zx plane. If a uniform magnetic field points in the positive x direction, what is in volts the...

ok thanks that realli helped, btw the answer for this is a) 0 N/C b)12569 N/C thanks again

ic...just one quick question, does the rule for cylinders apply for this question so that the center has a net electric field of 0?

Homework Statement Figure 24-34 shows cross-sections through two large, parallel, nonconducting sheets with identical distributions of positive charge with surface charge density σ = 2.62 x 10-22 C/m2. What is the y component of the electric field at points (a) above the sheets, (b) between...

ic so would \epsilon_{O} be 8.85e-12 C^2/N m^2

hey guys i was wondering if anyone could help me with this question, kinda got stuck Homework Statement Figure 24-31 shows a section of a long, thin-walled metal tube of radius R = 5.56 cm, with a charge per unit length λ = 7.34 x 10-8 C/m. What is the magnitude E of the electric field at...

ooo nvm i got it...i forgot about the 14% of energy being used... the method i used was right its just at the end when u solve for intesity I=P/A its actual 0.14I=P/A thanks for the help

well i redid the question where i used the equation Q=mcT where m is the density times the volume then with Q i found Power which is Q/t then with power i plugged it into the intensity equation of I=P/A (p is power not pressure and A is area) and solved for A, but for somereason I am not...

Homework Statement In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume...

so the frequency would be zero?

Homework Statement A tube 1.03 m long is closed at one end. A stretched wire is placed near the open end. The wire is 0.37 m long and has a mass of 8.2 g. It is fixed at both ends and oscillates in its fundamental mode. By resonance, it sets the air column in the tube into oscillation at that...

Homework Statement In Fig. 16-41, a stick of length L = 1.6 m oscillates as a physical pendulum. (a) What value of distance x between the stick's center of mass and its pivot point O gives the least period? (b) What is that least period...

x (cubed) in the expansion of (2 + 3x) (to the power of 5) well that's kinda easy actually, just think of (2 + 3x)^{5} as (2 +3x)(2 +3x)(2 +3x)(2 +3x)(2 +3x) so just multiply out using foil...looks like its going to take a while but I am assuming its just for practice and to get u into the...