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Two stationary positive point charges, charge 1 of magnitude3.40 nC and charge 2 of magnitude 2.00 nC, are separated with a distance of 45.0 cm. An electron is released from rest at the point midway among the two charges, and it moves along the line connecting the two charges.
What is the speed v_final of the electron when it is 10.0 cm from charge 1?
A 2000 kg sailboat experiences an eastward force of 3000 N by the ocean tide and a wind force against its sails with magnitude of 6000 N directed toward the northwest ( 45 degress N of W.) what is the direction of the resultant acceleration?
A rigid tank contains 1.40 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to lower the pressure of the gas from 27.2 atm to 5.90 atm
At this depth, what force must the frame around a circularsubmarine porthole having a diameter of 31.0 cm exert to counterbalance the force exertedby the water?
question1attempting to stop on a slippery road a car moving at 85 skids across a road at a 30 angle to its initial
A solid disk of radius R and mass 2.72 kg is spinning at angular velocity 63.9 rpm about a vertical axis. What is the mass of the second disk
a student stands initially at rest at the center of a turntable that can rotate without friction. the student begins to rotate a heavy ball on the end of a 0.800 chain about her head, what is the final total kinetic energy of the system
a small conductive rod of length 1.5 m moves with a constant velocity v14 ms in a direction parallel to a long wire
A rocket burns fuel at a rate of 100 kg/s and exhausts the gas at a relative speed of 3.0 km/s. Find the thrust of the rocket
A square wire carrying a current of 5 A has sides of 10 cm and is placed in the yz plane. The torque on the square is
If a person radiates about 66 W of power at room temperature, how long does it take for person to radiate away the energy acquired by consuming a 230 Calorie doughnut.
Suppose a 29.5 kg child sits 1.89 m to the left of center on the same seesaw as the problem you just solved. Find the mass of the second child
Assuming wind forces can be neglected, what is the highest that one can make a solid concrete tower of uniform cross-section (Take the density of concrete to be 2,400 kg/m^3)
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