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A point charge q1 = -4.00 nC is at the point x = 0.60 m, y = 0.80 m , and a second point charge q2 = +6.00 nC is at the point x = 0.60 m , y = 0.
Calculate the magnitude of the net electric field at the origin due to these two point charges. how do i find the angle (with tan).
Calculate the direction of the net electric field at the origin due to these two point charges
A scholars open a 12 kilogram door by applying a force of 40 Newton at a perpendicular distance of 0.90 meter from the hinges. Evaluate what the magnitude of angular acceleration
The semiconducting compound ZnS is widely used for ultraviolet light emitting diodes (LED's). find the frequency of light emitted by a ZnS LED
A 45 kg figure skater is spinning on the toes of her skates at1.0 rev/s. Her arms are outstretched as far as they willgo. In this orientation, the skater can be modeled as acylindrical torso (40 kg, 20 cm average diameter, 160 cm tall) plustwo rod..
A 6 kg box is being pulled by a force F = 95 N at an angle of 54° from the horizontal. calculate the Work done by the external force
asssume that in a particular vacuum tube the potential of the anode is 340 V higher than that of the cathode. If an electron leaves the surface of the cathode with zero initial speed, what is its speed when it strikes the anode.
A beaker of water sits in the sun until it reaches an equilibrium temperature of 30 degrees C. The beaker is made of 100g of aluminum and contains 180g of water. In an attempt to cool this system, 100g of ice at 0 degrees C is added to the water.
A bar 5.0 m long has its center of gravity 1.5 m from the heavy end. What is the weight of the bar
An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What should be the tension in the wire if it is to take 0.8 seconds for a pulse to travel along the wire from one pole to the other.
A linearly-polarized em wave moving in vacuum perpendicular to a perfectly reflecting surface exerts a radiation pressure of 0.0123 Pascal on that surface. Determine the intensity of that em wave
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 V for 0.65 ms. find The average power supplied by the pacemaker
A container holds 1.5 g of oxygen at a pressure of 9.0atm. How much will the temperature increase if this amount of heat energy is transferred to the gas at constant volume
A ball is thrown straight up from an initial position yi = 1.00 m above ground level with an initial velocity v0. Determine the initial velocity of the ball
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