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Question 1 : A charge of 3.00 pC is uniformly distributed on a ring of radius 10 cm. Find the electric field strength on the axis at distances of (a) 1.0 cm, (b) 10.0 cm, and (c) 5.0 m from the center of the ring. (d) Find the field strength 5.0 m using the approximation that the the ring is a point charge at the origin, and compare your results for parts (c) and (d). Is your approximation a good one? Explain your answer.
Question 2 : Show that the electric field strength E on the axis of a ring charge of radius R has maximum values at z = IRRa What is this maximum value of E?
A cylindrical resistor of radius 4.2 mm and length 2.4 cm is made of material that has a resistivity of 3.50×10-5 ? m. What is the current density when the energy dissipation rate in the resistor is 1.0 W? What is the potential difference?
question gloria had a rectangular garden plot last year with an with an area of 60 square feet. this year glorias
A 3.66-F and a 6.96-F capacitor are connected in series acrossa 30.0-V battery. A 7.49-F capacitor is then connected in parallelacross the 3.66-F capacitor. Determine the voltage across the 7.49-F capacitor.
(a) If the elevator moves with an upward acceleration a with arrow of magnitude 2.0 m/s2, find the tensions T1 and T2 in the upper and lower strings. T1 = N T2 = N
Suppose a car is traveling at +23.7 m/s, and the driver sees a traffic light turn red. After 0.360 s has elapse, What is the stopping distance of the car
It's generally okay to ignore relativistic effects when a particle's speed is less than 1.0% of the speed of light, Find the accelerating potential difference that will bring electrons to that speed, starting from rest
Problem on the velocity of boat
Two protons are released from rest, one from location 1 and another from location 2. When these two protons reach location 3, what is the electric potential at location 3
Suppose a proton accelerator is 3.99 m long and must accelerate protons from rest to a speed of 1.15 x 107 m/s. Ignore any relativistic effects and determine the magnitude of the average electric field
A factory worker pushes a 28.7 crate a distance of 4.9 along a level floor at constant velocity by pushing downward at an angle of 29 below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.26 What magnitude of forc..
An 8.00kg package in a mail-sorting room slides 2.00m down a chute that is inclined at 53.0m below the horizontal. Calculate the work done on the package by the normal force
A 0.88 kg mass attached to a vertical spring of force constant 196 N/m oscillates with a maximum speed of 0.40 m/s. Find the following quantities related to the motion of the mass.
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