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An Oil droplet with a radius of 0.03 mm is observed to hover motionless in space between two vertically separated metal plates. The plates are 3 cm apart and are charged to a potential difference of 500 Volts. The density of oil used for this experiment is 500 kg/m3.
A) What is the magnitude of the Electric Field produced by the plates?
B) What is the net charge on the oil drop?
C) How many excess electrons must the oil drop have?
An outside loudspeaker (considered a small source) emits sound waves with a power output of 80 W. Find the intensity level in decibels at that distance
what is the ratio of the amplitude of the damped oscillations. You shoot a 58-g pebble straight up with a catapult whose spring constant is 310 N/m. The catapult is initially stretched by 0.20 m. How high above the starting point does the pebble f..
Doing a report about Chernobyl disaster now, and the knowledge and focus on is Physicists use models to explain and reconcile observed energy phenomena;
At the equilibrium position, the piston is situated at the hight l0 from the bottom of the cylinder. The pressure outside of the cylinder is P0, the cross section of the cylinder and the piston is S.
W hat is balls initial speed
A high-speed photograph of a club hitting a golf ball is shown in the figure below. find the average force exerted on the ball by the club
A sodium atom (Z = 11) contains 11 protons in its nucleus. Strictly speaking, the Bohr model does not apply, determine the corresponding radius r of the outermost Bohr orbit
A hanging mass, M1 = 0.18 kg, is attached by a light string that runs over a frictionless pulley to the front of a mass M2 = 0.36 kg that is initially at rest on a frictionless table. Find the tension in the string between masses
Two loudspeakers emit sound waves along the x-axis. What is the phase difference between the speakers
Obtain an expression for the velocity
Three protons are at the vertices of an equilateral triangle 0.800nm on each side. What is the potential energy of this set of charges
An electron moves from point A where the potential is Va=+20.0kV to point B where the potential is Vb=- 40.0 kV. what was the change of the system's electric potential
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