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A common capacitor found in the lab is in the form of a cylinder of length 2.5 cm. Suppose it is an air filled cylindrical capacitor with radii 1.1 cm and 1.2 cm.
(a) What is the value of the capacitance? What would be the width of a parallel plate capacitor having the same length and separation (0.1 cm) as the cylindrical capacitor?
A 95 kg man standing on a surface of negligible friction shoves a 75 g stone lying at his feet, giving it a velocity of 4.0 m/s. What velocity does the man obtain accordingly.
Bruce stands on a bank beside a pond, grasps the end of a 10.00-m long rope attached to a nearby tree and swings out to drop into the water. If the rope starts at an angle of 36° with the vertical, what is Bruce's speed at the bottom of swing.
A parallel plate capacitor is composed of two square plates, 8.5 cm on a side, separated by an air gap of 1.00 mm, Find the new capacitance
A 0.58 kg toy airplane is suspended from the ceiling by a 1.6 m long cord and rotates in a horizontal circle. If the cord makes an angle of 35 degrees with the vertical.
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other?(Hint: Use charge conservation and solve for one of the initial charges. You will end up with a quadratic equation. The solutions giv..
Jeffrey is driving his Toyota Prius the freeway and reaches his exit. The exit has a radius of curvature of 25m and is banked 38°. How fast can Jeffrey travel around the curve on a dry day
A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. If the ball was moving horizontally when it was caught, how fast was the ball travelling
what is the electric potential energy of this particle. what is its speed just before it strikes the positive plate.
Two boats start together and race across a 62-km-wide lake and back. Boat A goes across at 62 km/h and returns at 62 km/h. Boat B goes across at 31 km/h, and its crew, realizing how far behind it is getting, returns at 93 km/h.
Two charged objects experience a mutual repulsive force of N. If the charge of one of the objects is reduced by a factor of and the distance separating the objects is increased by a factor of , what is the new force?
The position of a particle as it moves along a y axis is given by y = (2.0 cm) sin (?t/4), What is the instantaneous acceleration of the particle at t = 0, 1.0, and 2.0 s
A hawk flies in a horizontal arc of radius 12 m at a speed of 4 m/s, and increases its speed at the rate of 1.20 m/s2. Find the acceleration (and direction) under these conditions.
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