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The drawing shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 8.50 cm from the origin O. For each of the situations in the drawing, decide the magnitude of the net electric field at the origin.
A certain laser emits light in a narrow band of wavelengths entered at 509.3 nm and by a ''wavelength width'' (such as on the scale of figure 33-1) of 0.0104 nm. What is the corresponding ‘frequency width'' in hertz for the emission?
A uniform thin rod of mass 4.55 kg pivots about an axis through its center and perpendicular to its length. Two small bodies, each of mass 0.577 kg, are attached to the ends of the rod. What must the length of the rod be so that the moment of inertia..
A child pulls a 5kg. toboggan with a 150N force 35 degrees above the horizontal 5m. How much work was done in moving the toboggan
A parallel plate capacitor has a constant electric field of 2.2x104 N/C among its plates separated by a distance of 3.25mm. An electron is released from rest at the negative plate and allowed to move to the positive plate. What is its speed when it r..
question a proton has 1836 times the rest mass of an electron. at what speed will an electron have the same momentum as
A 14,240N car is traveling along a highway at 95.0 kn/hr. If the driver immediately applies his breaks, what average force acted upon the car
200 Btu are transported into a system via a work mode and 75 Btu are removed via heat transfer mode. Determine the net energy gain for this system
a garden hose with an internal diameter of 2.0 cm is connected to a stationary lawn sprinkler that consists merely of
research suggests that the electric fields in some thunderstorm clouds can be on the order of 10 knc. calculate the
A block, m1,is resting on a frictionless horizontal surface. This blockis connected to a block, m2, by a string over africtionless pulley that has a mass of 5.0 kg and a radius of 12cm. What are the tensions on opposite sides of the pulley
a point charge of -3 c is located at x 2 m y -2 m. a second point charge of 12 c is located at x 1 m y 1 m.a find
The disk in a CD player does not rotate at a constant rate, but spins at a rate determined by a control circuit so that the linear speed of the track being read is constant, what will be its rotation rate at the end
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