What is the electric field strength a point on the axis
Two 10-rm cm-diameter charged disks face each other, 18 cm apart. Both disks are charged to - 50 nC. What is the electric field strength a point on the axis 5.0 rm cm from one disk between them?
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A projectile is fired horizontally from a gun that is 33.0 m above flat ground, emerging from the gun with a speed of 130 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike
Suppose you wish to fabricate a uniform wire out of 2.6 g of copper. If the wire is to have a resistance of R = 0.25 and if all of the copper is to be used, what must be the length of the wire in m and the diameter of the wire in mm?
Suzie (of mass 50 kg) is roller-blading down the sidewalk going 20 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in .5 seconds. What is Suzie's average accelerati
A potential difference of 86 mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative relative to the outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the c
A pair of 10 {rm mu F} capacitors in a high-power laser are charged to 1.7 {rm kV}. What charge is stored in each capacitor? How much energy is stored in each capacitor?
The force vector A has a magnitude of 87.0 newtons (N) and points due east. The force vector B has a magnitude of 124 N and points 73.1 ° north of east. Find the (a) magnitude and (b) direction of A - B. (Give the direction as a positive angle
A 55.0 kg pole vaulter running at 9.7 m/s vaults over the bar. If the vaulter's horizontal component of velocity over the bar is 1.0 m/s and air resistance is disregarded, how high was the jump?
A flywheel rotating at 640 rev/min is brought to rest with a uniform deceleration of 2.0 rad/s^2. How many revolutions does it make before coming to rest.
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