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An accelerating voltage of 2415 V is applied to an electron gun, producing a beam of electrons originally traveling horizontally north in vacuum toward the center of a viewing screen 32.0 cm away.
(a) What are the magnitude and direction of the deflection on the screen caused by the Earth's gravitational field?
Magnitude___________
b) What are the magnitude and direction of the deflection on the screen caused by the vertical component of the Earth's magnetic field, taken as 20.0 mT down?
Magnitude __________
A wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite charge on the car. What is the electric field near the surface of the ball
Two ice skaters, Daniel (mass 63.1 kg ) and Rebecca (mass 45.9 kg ), are practicing. Daniel stops to tie his shoelace and, while at rest, is struck by Rebecca, What is the direction of Daniel's velocity after the collision
What is the angular momentum of a 3.2 kg uniform cylindrical grinding wheel of radius 12cm while rotating at 1400 rpm.
Three point charges are arranged along the x axis. Charge q1=-4 nC is located at x=0.240m and charge q2=2.10 nC is at x=-0.350m, What is the direction of the net force on q3
In a pure rotational spectrum of HS radical (eq bond length r=1.40 Angstroms) you notice that the most intense absorption corresponds to J=8-->9 transition. Estimate the sample temperature.
Light of wavelength 665 nm is used to illuminate normally two glass plates 12 cm in length, How many bright fringes appear along the total length of the plates
A charge of -2.2×10-9 C is at the origin and a charge of 6×10-9 C is on the x-axis at x = 3m. At what two locations on x-axis (xpositive, xnegative) is the potential zero.
A classroom demonstration is done with an Atwood machine. The masses are m1 = 1.0 kg and m2 = 1.14 kg. what is the acceleration of gravity at that place
A crate is pulled by a force (parallel to the incline) up a rough incline. The crate has an initial speed of 1.5m/s. The crate is pulled a distance of 7.5 m on the incline by a 150 N force. The acceleration of gravity is 9.8m/s² mu=0.15
The telescope at Yerkes Observatory in Wisconsin has an objective whose focal length is 19.4 m. Its eyepiece has a focal length of10.0 cm. What is the angular magnification of the telescope
A 150g ball is thrown vertically upward from a window 10m above the ground at speed of 30 m/s What is the speed of the ball when it strikes the ground
A 150- crate, starting from rest, is pulled across a floor with a constant horizontal force of 360 . For the first 11 the floor is frictionless, and for the next 11 the coefficient of friction is 0.31. Illustrate what is the final speed of the c..
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