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A teaspoon of organic oil dropped on the surface of a stillpond and spreads out to cover the area of almost an acre. The oilfilm has a thickness equal to the size of a molecule. In the lab,when you drop 0.001 milliliter (10 to the negative ninth meterscubed) of the organic oil on the still surface of the water , youfind that it spreads to cover an area of 1.0 meters squared. If thelayer is one molecule thick, what is the size of the single molecule?
Two cylinders have the same radius R = 0.6 m and length 0.6 m, but one is a solid cylinder of massM1 = 4.5 kg, What is the ratio of the final speed of the solid cylinder to that of the hollow cylinder
A ray of light consisting of two colors (red and blue) is incident normally on the face of a small equilateral prism. What is the distance between the two colors on the screen
A car is traveling around a horizontal circular track with radius r = 240 m at a constant speed v = 17 m/s, What is the y component of the car's acceleration when it is at point B
A baseball is popped straight up into the air and has a hang-time of 6.25 s. Determine the height to which the ball rises before it reaches its peak
A person can just see this bulb from a distance of 800m, with the pupil diameter dialated to 7.5mm, how many photons per second are entering the pupil
a) Determine the magnitude and direction of the electrostatic force acting on particle A in the figure given below due to particles B and C . The values of the charge on these particles are indicated in the figure.
The distance between two telephone poles is d = 52.0 m. How much tension does the bird produce in the wire
questionassume that a climber having mass m and who are l tall rappels down a vertical cliff with her body rose at a 43
An astronaut constructs a pendulum with a length of 1 meter on a new planet. If the period is 4 second, what is the acceleration due to gravity
Find the equivalent resistance of two resistors connected in parallel if one is 0.5 ohm and the other 0.33 ohm, what current will flow through the 10-ohm resistor
What is the maximum amount of energy the incident electron can lose in elastically in this collision? What is left over energy of the electron.
The heat of fusion for water is 80. cal/g. How various calories of heat are released when 20.0 g of water at 30. °C is cooled to 0 °C and frozen to ice at 0 °C
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