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A positively charged oil drop is injected into a region of uniformelectric field between two oppositely charged, horizontallyoriented plates spaced 16 cm apart. If the electric force on thedrop is found to be 7.8 x 10-16 Nand the electric field magnitude is 555 V/m, what is the magnitude of the charge onthe drop in terms of the elementary charge e? Ignorethe small buoyant force on the drop.
An athlete needs to lose weight and decides to do it by "pumping iron." If the weight is lifted once every 2.00 s, how long does the task take
For no apparent reason, a poodle is running at a constant speed of 6.00 m/s in a circle with radius 2.9 m. Let v1 be the velocity vector at time t1 , and let V2 be the velocity vector at time t2 . Consider (change in v)=v2-v1 and (change in t)=t2-..
A parallel plate capacitor has a charge on one plate of q = 1.3E-06 C. Each square plate is d1 = 2.2 cm wide and the plates of the capacitor are separated by d2 = 0.65 mm, What is the voltage between the plates
A box of mass 32 kg is at rest on a horizontal frictionless surface. A constant horizontal force then acts on the box, and accelerates it to the right. It is observed that it takes the box 6.5 seconds to travel 48 meters. What is the magnitude of for..
A 95.0A current circulates around a 2.30-mm-diameter superconducting ring. What is the ring's magnetic dipole moment
A wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite charge on the car. If a car has a 1000 kg mass and the ball is to be able to lift it from a distance of 1.00 m: (a) What minimum ..
A 120-V motor has mechanical power output of 3.60 hp. It is 87.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
An uncharged metal slab has square faces with 12 cm sides. It is placed in an external electricfield that is perpendicular to its faces. The total charge inducedon one of the faces is 1.2 nC. What isthe magnitude of the electric field?
A spacecraft has a nonrelativistic (or classical) momentum whose magnitude is 7.0 1012 kg · m/s. Find the relativistic momentum of the spacecraft
Yellow light propagates through vacuum at a speed of 3 x 10^5 km/sec, with a wavelength of 590 nm. What is the frequency in vacuum
The force involved in a collision is 1.0 × 10^2 newtons. What is the value of the change in momentum
What is the electric field at 9.4 cm from the central axis. What is the overall magnification of microscope.
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