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A microscopic oil droplet containing 1000 electrons is at rest and in equilibrium, floating above a...
A 1.0-μm-diameter oil droplet (density 900 kg/m3) is negatively charged with the addition of 27 extra...
A 1.0-μm-diameter oil droplet (density 900 kg/m3) is negatively charged with the addition of 27 extra electrons. It is released from rest 2.0 mm from a very wide plane of positive charge, after which it accelerates toward the plane and collides with a speed of 3.1 m/s . Part A What is the surface charge density of the plane?
In 1909, Robert Millikan was the first to find the charge of an electron in his...
In 1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment tiny oil drops were sprayed into a uniform electric field between a horizontal pair of oppositely charged plates. The drops were observed with a magnifying eyepiece, and the electric field was adjusted so that the electric force on some negatively charged oil drops was just sufficient to balance their weight. Millikan accurately measured the charges on many oil...
In an oil-drop experiment a negatively charged oil drop has a mass of 3.0 x 10-15...
In an oil-drop experiment a negatively charged oil drop has a mass of 3.0 x 10-15 kg and is held at rest between two parallel plates separated by a distance of 2.0 cm. The potential difference between the plates is 460 V. a) On the diagram below, show all the applied forces on the drop. Do not include the buoyant force of the air on the oil drop. b) What is the strength of the electric field between the plates?...
2. An object of 5 kg is released from rest 1000 meters above the ground level...
2. An object of 5 kg is released from rest 1000 meters above the ground level and allowed to fall under the influence of gravity. Assuming that the force due to air resistance is proportional to the velocity of the object with proportionality constant k = 50 kg/sec determine the formula for the velocity of the object 3. A rocket having an initial mass mo kg is launched vertically from the surface of the Earth. The rocket expels gas at...
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
6. A shell is fired from a gun with a muzzle velocity of 20.0 m's, at...
6. A shell is fired from a gun with a muzzle velocity of 20.0 m's, at an angle of 60.0 with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, falls vertically. How far from the gun does the other fragment land, assuming that the terrain is level and that the air drag is negligible? (You may use R-(v/g) sin(20) 7. In...
Problem 2 (9) Use kinetic theory of gasses to explain the following: a) As a glass...
Problem 2 (9) Use kinetic theory of gasses to explain the following: a) As a glass of water evaporates, what happens to the temperature of the water? b) As a water vapor condenses onto a surface, what happens to the temperature of the vapor? c) As a solid sublimates, what happens to the temperature of the solid? Problem 3 [6] a) 15g of helium at 298K is equivalent to how many moles? molecules? volume? b) 15g of water at 298K...
I need help solving this problem. Thanks in advance. If correct, I will leave a like...
I need help solving this problem. Thanks in advance. If correct,
I will leave a like and a comment!
Practice Problem 18.3 Constants Now let's look at the potential energy of a charge that is in the vicinity of two other charges. Suppose two electrons are held in place 10.0 cm apart. Point a is midway between the two electrons, and point b is 12.0 cm directly above point a. (a) Calculate the electric potential at point a and at...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
2. An object of 5 kg is released from rest 1000 meters above the ground level and allowed to fall under the influence of gravity. Assuming that the force due to air resistance is proportional to the velocity of the object with proportionality constant k = 50 kg/sec determine the formula for the velocity of the object 3. A rocket having an initial mass mo kg is launched vertically from the surface of the Earth. The rocket expels gas at...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
6. A shell is fired from a gun with a muzzle velocity of 20.0 m's, at an angle of 60.0 with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, falls vertically. How far from the gun does the other fragment land, assuming that the terrain is level and that the air drag is negligible? (You may use R-(v/g) sin(20) 7. In...
Problem 2 (9) Use kinetic theory of gasses to explain the following: a) As a glass of water evaporates, what happens to the temperature of the water? b) As a water vapor condenses onto a surface, what happens to the temperature of the vapor? c) As a solid sublimates, what happens to the temperature of the solid? Problem 3 [6] a) 15g of helium at 298K is equivalent to how many moles? molecules? volume? b) 15g of water at 298K...
I need help solving this problem. Thanks in advance. If correct,
I will leave a like and a comment!
Practice Problem 18.3 Constants Now let's look at the potential energy of a charge that is in the vicinity of two other charges. Suppose two electrons are held in place 10.0 cm apart. Point a is midway between the two electrons, and point b is 12.0 cm directly above point a. (a) Calculate the electric potential at point a and at...
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