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If you separate the socks with equal charges 1.00 x10-9 C until they're 7.00 cm apart, what force will each sock exert on the other?
The angle of incidence of a light beam onto a reflecting surface is continuously variable. The reflected ray in air is completely polarized when the angle of incidence is 49.2°. What is the index of refraction of the reflecting material?
A child pulls a friend in a little red wagon with constant speed. If the child pulls with a force of 16 N for 10.0 m, how much work does the child do on the wagon
A 4.9-N hammer head is stopped from an initial downward velocity of 3.2 m/s in a distance of 0.45 cm by a nail in a pine board. Calculate the downward force F exerted by the hammer head on the nail while the hammer head is in contact with the nail a..
A golf ball with mass 45.90 g and diameter 42.60 mm is struck such that it is moving with a speed of 53.79 m/s and rotating. What is the rotation frequency of the golf ball
Completely polarized light is passed through a polarizing sheet. The light that passes though has an intensity of 50% of the incident beam. The angle between the direction of the polarization of the incident beam and the direction of the polarizat..
A 3.0 kg block slides along a horizontal, frictionless surface at 5.0 m/s the block hits an ideal spring with spring constant 2500 N/m. What is the maximum distance that the spring gets compressed
The longest recorded pass in an NFL game traveled 83 yards in theair from the quarterback to the receiver. Assuming that thepass was thrown at the optimal 45 degree angle, what was the speedat which the ball left the quarterbacks hand?
In a church choir loft, two parallel walls are 5.88 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.619 m away from it. So that she can see the choir, a flat mirror 1.147 m wide is mounted in the south ..
Light with a wavelength of 390 nanometer shines on a metal surface, which emits electrons. Determine what the work function and identify the metal
The longest pipe in a certain organ is 2.70 m long. What is the lowest frequency the organ will produce if the pipe is open at both ends
A block of mass 2 kg is attached to a spring. The block/mass system is on a horizontal frictionless surface. What is the maximum acceleration of the block
A train moving at a constant speed of 63.0 km/h moves east for 33.0 min, then in a direction 41.0° east of due north for 24.0 min, and then west for 44.0 min. What is the average velocity of the train during this run? Magnitude 1 km/h Direction 2° (c..
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