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An electrostatic paint sprayer has a 0.400 m diameter metal sphere at a potential of 28.0 kV
Paint droplets initially at rest are dispensed from a paint gun. These droplets are then repelled by the paint sprayer toward the object to be painted. This object is grounded and therefore the electric potential is taken to be zero everywhere on the object. What charge must a 0.700 mg drop of paint have to arrive at the grounded object with a speed of 18.0 m/s?
The work function for potassium is 2.25eV. A beam with a wavelength of 400nm and an intensity of 10^-9W/m^2. find the maximum kinetic energy of the photelectrons
An alpha particle moves in a plane perpendicular to the Earth's North Pole. Determine what direction is it travelling
An astronaut on the moon fires a projectile from a launcher on a level surface therefore as to get the maximum range. determine what is the range of the projectile
A 8.50cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.690T pointing up. During the course of 0.180s, the field is changed to one of 0.350T pointing down. What is the average induced emf in the c..
Light rays from a distant point source are incident perpendicular to the flat side of a semicircular glass plate of radius5.0 cm and index 1.5. Discover the distance of the image from the center of the curved side.
a catapult launches a rock towards a hill 500m away. the rock lands on the hill 20m above the release point of the rock. find the max height of the rock during flight
A mass of 6 kg is moving at 31 m/s in the positive x direction. What is the magnitude of the velocity of the masses after the collision in m/s
A 2.3 box, starting from rest, is pushed up a ramp by a 10 force parallel to the ramp. The ramp is 2.0long and tilted at 17 . The speed of the box at the top of the ramp is 0.80 .
An 825-N sled is pulled a distance of 161 m. The task requires 1.50 ^ 10^4 J of work and is done by pulling on a rope with a force of 137 N. At what angle is the rope held.
Particle X has a speed of .74 c and a momentum of 5.54 * 10^-19 kgm/s. What is the total energy of the particle
A stamp collector is viewing a stamp by a magnifying glass held next to her eye here near point is 25 cm from her eye what is the refractive power of a magnifying glass that has a angular magnification of 6.0 when the image of stamp is located at the..
A capacitor is constructed of two concentric conducting cylindrical shells. The radius of the inner cylindrical shell is 2.42 x 10-3 m, and that of the outer shell is 2.55 x 10-3 m. Determine the capacitance of this capacitor
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