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An electromagnetic wave travelling the +z direction has a maximum magnetic field of 10^-7 T in the negative y direction at z = 0 and t = 0. The magnetic field falls to zero in 3 x 10^-16 seconds.
What is the wavelength?
What is the amplitude of the time averaged Poynting vector?
Imagine a very heavy cube of pure gold that is 1.23 m on a side. Approximate the atoms in this cube as little cubes, How far would the line stretch
A 36 g ball is fired horizontally with initial speed v_0 toward a 110 g ball that is hanging motionless from a 1.1 m-long string. The balls undergo a head-on, perfectly elastic collision, after which 110 g ball swings out to a maximum angle theta_..
A solid uniform 38.9kg ball of diameter 36.2cm is supported against a vertical frictionless wall using a thin 30.0cm wire of negligible mass. how hard does the ball push against the wall
The maximum speed of the photoelectrons from a photoelectric experiment with a silver surface (work function: 4.73 eV) is found to be 3.00× 106 m/s
A 2.5-mC charge is on the 7-axis at y= 3.0m and a 6.3-mC charge is on the x-axis at x= 3.0m. What is the direction of potential at the origin
A particle is located at the vector position r = (7.00i+ 10.00j)m, Determine another position vector that lies on the y-axis
A capacitor that is initially uncharged is connected in series with a resistor and a 406.7V emf source with negligible internal resistance, What is the resistance of the resistor
Suppose a 76 kg person hangs vertically from a nylon rope. What radius must the rope have if its fractional enhancement in length is to be the similar as that of the spider's thread.
he wavelength of an electromagnetic wave inside water (nwater = 1.33) is ? = 660 nm. find the wavelength of the same electromagnetic wave
A 5 kg toy race car can move along an x axis. It gives Fx of the force acting on the car, that begins at rest at time t = 0. (The vertical axis is marked in increments of 2.5 N.) what is the momentum at t=6?
Consider an airplane flying at Mach 4 at 70,000 feet. A shock is formed due to supersonic flow. Find the total pressure at the nose using 3 approaches
Two skaters, one with mass 65 kg and the other with mass 80 kg, stand on an ice rink holding a pole of length 9 m and negligible mass. How far does the 80 kg skater move
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