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Two point particles of charge Q1 = 48 μC and Q2 = 79 μC are found to have a potential energy of 43 J. What is the distance between the charges in m?
The ammonia molecule NH3 has a permanent electric dipole moment equal to 1.47 D, where 1 D = 1 debye unit = 3.34 x 10-30 C-m. Calculate the electric potential in volts due to an ammonia molecule at a point 65.0 nm away along the axis of the dipole. (..
A speaker and two microphones are arranged inside a sealed container filled with neon gas. What is the speed of sound in neon gas
Atmospheric pressure is about 1.0 105 Pa on average. What is the downward force of the air on a desktop with surface area 0.1 m2
A traveler first drives 18.8 km east, then 31.8 km southeast, and finally 11.1 km south. Find the traveler's total displacement
A water wave passing a point causes a cork to bob up and down through a total distance of 1 m, completing one cycle every 1.5 sec
The parallel metal plate of a capacitor is seperated by a distance of 0.5cm and is connected to a 90v battery. Find an electric field between them and the surface charge density.
What is the period of oscillation of the scale? State your reply numerically in seconds.
a vibrating structural beam in a spacecraft can cause problems if the frequency of vibration is fairly high. even if
A flat, solid cylindrical grinding wheel with a diameter of 26.0cm is spinning at 2900rpm when its power is suddenly turned off. A workman continues to press his tool bit toward the wheel's center
the 3.0 kg mass from parts a and b above is separated into 1.5 kg pieces. one of these is moved 10cm in the y
A train travels due south at 60 m/s. It reverses its direction and travels due north at 60 m/s. What is the change in velocity of the train
for an equatorial radius of 6370 km the circumference is 40024 km.. so consider this circumference as a long steel
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