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Q1. An infinite non conducting sheet has a surface charge density σ = +5.80 pC/m2. (a) How much work is completed by electric field because of the sheet if a particle of charge q = +1.60 × 10-19 C is moved from the sheet to a point P at distance d = 3.56 cm from the sheet?(b) If the electric potential V is defined to be zero on the sheet , what is V at P.
Q2. A 1000 kg steel beam is supported by the two ropes. Each rope can support a maximum sustained tension of 5700 N. Will the ropes break?
Does the rope break?
The angular velocuty of the elctron in the lowest Bohr orbit of the hydrogen atom is about 4*10^16 s^-1. Determine the Larmor frequency in a field of 2 T
A hockey puck has a mass of 0.116 kg and is at rest. A hockey player makes a shot, exerting a constant force of 27.5 N on the puck for 0.16 s. With what speed does it head toward the goal
A train moving with constant velocity travels 190m north in 14s and an undetermined distance to the west. Find the direction of the train's motion relative to north
A 5 kg block sits on a surface with a maximum static coefficient of friction of 0.60. A 10g bullet is fired into the block. How much kinetic energy is dissipated in the bullet/block collision
A 0.350kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.850m/s when it makes a head-on collision with a stationary 0.150kg glider. Find the Final Kinetic Energy of first glider
A 42 kg pole vaulter running at 11 m/s vaults over the bar. Her speed while she is above the bar is 0.7 m/s. Avoid air resistance, as well as any energy absorbed by pole, and determine her altitude as she crosses the bar.
What will be the lowest possible temperature to which very dry air at T=40 C can be cooled by evaporation. Consider p=1000mb and lv constant and equal to 2.4 x 106 J kg-1.
Two small objects are hung, from a point, on strings 50 cm long. they each have mass .06 grams and are given equal charges if the strings each make an angle of 37 degrees with a vertical, what is the magnitude of the electric force between the ob..
Two gravitational forces act on a particle, in perpendicular directions. To find the net force, can we add the magnitudes of those two forces?
A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.65 s, What is the mass of the grapes
question1an airplane is flying with a velocity of 82.0 at an angle of 18.0 above horizontal. while the plane is a
How far did you travel on this trip? What was your average speed.
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