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The tip of a scanning electron microscope has a radius ofcurvature of 5 nm, and is at a potential of 3V. By treating the tip as a sphere, estimate the electric field at its surface.
Two workers are trying to move a heavy crate. One pushes on the crate with a force , which has a magnitude of 485 newtons and is directed due west.
Assume that the net horizontal force is due to rolling friction only and take free-fall acceleration to be = 9.80 .What is the coefficient of rolling friction for the tire under low pressure.
vector a has a magnitude of 6.00 units vector has a magnitude of 8.00 units and the dot product amiddotb has a value of
A 500g ball moving at (10.0cm/s, +x) collides with an identical ball at rest.The incoming ball scatters at 30 degrees with respect to the +x axis, What is the speed of the each ball after collision
Two horizontal forces, 241 N and181 N, are exerted on a canoe. If thethese forces are applied in the same directions, find the net horizontal force on the crate
A 5.40 kg mass attached to a spring oscillates with a period of 0.445 s and an amplitude of 17.0 cm. Find the total mechanical energy of the system
A 2.10 kg mass attached to a spring oscillates with a period of 0.375 s and an amplitude of 20.5 cm. Find the total mechanical energy of the system
The magnetic field perpendicular to a circular wire loop 11.2cm in diameter is changed from +0.50Tto -0.33T in 130ms, In what direction does the induced current flow?
A person on a safari wants to take a photograph of a hippopotamus from a distance of 75.1 m. What would be the size of the image if a lens of 50.0-mm focal length were used
An air bubble has a volume of 1.60 cm3 when it is released by a submarine 110 m below the surface of a lake. What is the volume of the bubble when it reaches the surface
write a 1000- to 1200-word paper comparing the personality theories of freud jung rogers and maslow. outline how each
A 1.30-kg ball, moving to the right at a velocity of +4.52 m/s on a frictionless table, collides head-on with a stationary 8.40-kg ball. Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
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