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The electric potential at point b in the parallel plate capacitor is less than the electric potential at point a by 4.50V. the separation between points a and b is 0.120 cm, and the separation between the plates is 2.55 cm. Find (a) the electric field within the capacitor and (b) the potential difference between the plates .
A 10-kg projectile launched over level ground has three times the kinetic energy at the moment of its launch as it does at its peak height. Find its impact velocity
A 72.0-kg bungee jumper is standing on a tall platform (h0 = 42.2 m). The bungee cord has an unstrained length of L0 = 9.54 m, Determine how far the bungee jumper is from the water when he reaches the lowest point in his fall
A conducting bar of length script l moves to the right on two frictionless rails, Explain the origin of the energy being delivered to the resistor
A parallel-plate air capacitor is made from two plates 0.070 square, spaced 9.3 apart. What must the potential difference between plates be to produce an energy density of.
a converging lens f 13.0 cm is held 7.10 cm in front of a newspaper the print size of which has a height of 1.80 mm.
In an advanced laboratory class a student performs the photoelectric experiment. What is Planck's constant based on this measurement
radio waves on our planet travel at approximately the speed of light c. your radio is tuned to an fm station v
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer? Imagine the speed of sound in air to be 340 m/s.
You have a ball on a wire that is twirled in a circular orbit with a radius of 3.8 m, and the centripetal force acting on the ball, What is the speed of the ball in orbit
The efficiency of a Carnot engine is 29%. The engine absorbs 815 J of energy per cycle by heat from a hot reservoir at 502 K. Determine the energy expelled per cycle
for safety in climbing a mountaineer uses a nylon rope that is 50 m long and 1.0 cm in diameter. when supporting a
The total electric field consists of the vector sum of two parts, Find the magnitude and direction of the total field, Specify the directional angle relative to the x axis
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