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A light beam traveling in the negative z direction has a magnetic field B=(3.02x10-9T)x + (-5.28x10-9T)y at a given instant of time. The electric field in the beam has a magnitude of 1.82 N/C at the same time.
1. Write the E (electric field) in terms of unit vectors.
2. Does the electric field at this time have a z component that is positive, negative, or zero? Describe
A 700 N man stands in the middle of a frozen pond of radius 5.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally t..
What is the fraction of the hydrogen atom's mass (11H) that is in the nucleus? The mass of proton is 1.007276 u, and the mass of 11H atom is 1.007825 u.
question1a wooden rod of insignificant mass and length 83.0 is pivoted about a horizontal axis through its center. a
Two boxes are connected to each other. The system is released from rest and the 2.00kg box falls through a distance of 1.00m. what is the tension in the connecting string
Two springs with spring constants k1 and k2are put together end-to-end. Let x1 be the amount by which the first spring is stretched relative to its equilibrium length, andsimilarly for x2. If the combined double spring is stretched by an amount b ..
A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 11.5 m/s. How high does she see the ball rise
A tuning fork produces a steady400 Hz tone. When this tuning fork is struck and held near avibrating guitar string, find the possible frequencies produced by the guitar string
In a particular rear-end car collision the driver's head rotates 45 degrees backward before being stopped by the headrest. What is the average angular velocity of the driver's head
An electron and a positron, each moving at 3.0 x 10^5m/s, collide head on, disappear, Determine the energy and momentum of each photon
What is the magnetic field at the center of a circular loop of wire of radius 4.0cm when a current of 10a flows in the wire
A tuning fork is sounded above a resonating tube (one end closed) which resonates at a length of 0.32 m, What is the frequency of the fork
An object with a height of 2.44 cm is placed 35.3mm to the left of a lens with a focal length of 33.2 mm. Where is the image located
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