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A protein molecule is suspended in a gel, and has 31 excess electrons (hence the protein molecule is negatively charged). If placed in an electric field of 600 N/C, what is the (electric) force on this molecule?
Two particles execute simple harmonic motion of the same amplitude and frequency along close parallel lines. What is their phase difference
question if a soap bubble is 140 nm thick what wavelength is most strongly reflected at the center of the outer surface
A 8.85 ?C point charge is glued down on a horizontal frictionless table on the right. If is tied to a -6.65, Find the tension in the wire, What would the tension by if both charges were negative
A 1391.3 kg car is traveling at 29.8 m/s when the driver takes his foot off the gas pedal. It takes 4.9 s for the car to slow down to 20 m/s. How large is the net force slowing the car? Answer in units of N
An electron and a proton are initially very far apart (effectivelyan infinite distance apart). They are then brought together to forma hydrogen atom, in which the electron orbits the proton at anaverage distance of 5.39*10-11 m.
A golfer, driving a golf ball off the tee, gives the ball a velocity of +35 m/s. The mass of the ball is 0.045 kg, Determine the average force applied to the ball by the club
An electric fan spinning with an angular speed of 16 rad/s has a kinetic energy of 3.9 J. What is the moment of inertia of the fan
A set of crash tests consists of running a test car moving at a speed of 11.8 m/s (26.4 mi/hr) into a solid wall. Calculate the size of the average force which acts on the dummy during that time
When a firecracker is placed inside a bowling ball, the momentum before the explosion is equal to the momentum after the explosion because
Five moles of an ideal gas expand isothermally at 100 degrees Celsius to five times its initial volume. Find the heat flow into the system.
Find the maximum speed with which a 1550 kilogram car can round a turn of radius 77 meter on a flat road if the coefficient of static friction between road and tires is 0.75
In a model AC generator, a 505 turn rectangular coil 7.0 cm by 20 cm rotates at 124 rev/min in a uniform magnetic field of 0.56 T. What is the maximum emf induced in the coil
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