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An electron moves with a speed of 8.0 × 10^6 m/s along the +-axis. It enters a region where there is a magnetic field of 2.5 T, directed at an angle of 60° to the +x-axis and lying in the xy-plane. (1 eV = 1.60 × 10^-19 C, el = 9.11 × 10^-31 kg)
(a) Calculate the magnitude of the magnetic force on the electron.
(b) Calculate the magnitude of the acceleration of the electron.
Attached to each end of a thin steel rod of length 1.10 m and mass 6.00 kg is a small ball of mass 1.02 kg. Compute the retarding torque due to friction
A cockroach of mass m lies on the rim of a uniform disk of mass 3 m that can rotate freely about its center like a merry-go-round. find the angular velocity of the cockroach-disk system
The transformer supplying power to an artist's light sculpture provides 9600-V AC when supplied by 120-V AC. how many turns are there in its secondary coil
Laser ligh can be focused (at best) to a spot with a redius [r] equal to its wavelength ([lamba]). Suppose that a 1.0 W beam of green laser light, Estimate the acceleration of the particle
A rock is released from rest into water. The magnitude of Fd of the drag force acting on the rock due to its motion through water can be modeled as Fd = Cd(v), where v is the speed of the rock and Cd is the constant drag coefficient. Determine the..
A projectile is launched into the air with an initial speed of vi at a launch angle of 30 degrees above the horizontal. Calculate the horizontal distance traveled by the projectile
A barge has vertical sides and a flat bottom of 320 ft^2 area. when partially filled, the barge is immersed in fresh water to a depth of 2 ft. upon removal of the load the barge rises 16.0 in.
estimate the gravitational potential energy of the system relative to the lowest point of the motion when the cat is at its highest point.
It took 1 sec for 1000 coulombs of charge flows through a resistor in circuit. How much current flowed through the rsistor
A positron is an antimatter particle identical in mass to an electron but with a positive charge, Calculate the energies of the three lowest states of positronium
matrixed environment. What does that mean. How can we contend with the various stressors in such an environment. How do we manage expectations up for various projects.
an object is thrown upward to a person of a roof . at what point is the objects kinetic energy at its max? at what point is the potential energy of the system at a max
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