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The total electric flux coming out of a cubical box, that is 28.0 cm on a side, is 128 GNm^2/C (giga newtons times meters squared per coulomb). How many coulombs of charge are enclosed by the box?
A converging lens with a focal length of 12.9 cm and a diverging lens are placed 25.5 cm apart, with the converging lens on the left. What is the focal length of the diverging lens
A body oscillates with simple harmonic motion according to x = (4.0 m) cos[(2.0pi rad/s)t + pi/3 rad]. At t = 4.50s , What is the phase of the motion
q1. a diffraction grating with exactly 1000 lines per centimeter is illuminated by a he-ne laser of wavelength 683
A round loop of diameter 12 cm, carrying a current of 0.40 A, is placed inside a magnetic field = 0.20 T + 0.40 T . The normal to the loop is parallel to the unit vector = -0.60 - 0.80 . What is the potential energy of the loop?
A certain cavity has a temperature of 1150 K. (a) At what wavelength will the intensity of the radiation inside the cavity have its maximum value? [Do NOT need the answer to part (a); it is 2.52 mu m] (b) As a fraction of the maximum intensity, what ..
As part of the safety investigation, two 1400 {rm kg} cars travelling at 23 {rm m/s} are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.7 {rm s} to stop, and (b) car that hits..
some students connected a length of nichrome wire to a variable power supply to produce between 0.0 v to 10.0 v across
Two 1000 kg cars drive east; the first moving at 25 m/s, the second at 15 m/s. What is the magnitude of the total momentum of the system
In 1965, Arno Penzias and Robert Wilson discovered the cosmic microwave radiation left over from the Big Bang expansion of the Universe. Suppose the energy density of this background radiation is 3.7 10-14 J/m3. Determine the corresponding electric f..
An interference experimental setup consists of two slits that are separated by 2 micro meter. What is the angle of diffraction for the second order dark fringe
estimate the average power output on the way up. A speedboat moving at 39 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of -3.15m/s2 by reducing the throttle.
A 60 kg bicyclist rides his 9.8 kg bicycle with a speed of 16 m/s. What is the magnitude of the braking force
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