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A teaspoon of an organic oil dropped on the surface of a quiet pond speads out to cover almost an acre. The oil film has a thickness equal to the size of a molecule. In the lab, when you drop 0.001 milliliter (10-9m3) of the organic oil on the still surface of water, you find that it speads to cover an area of 1.0m2. If the layer is one molecule thick, what is the size of a single molecule.
An 800kHz radio signal is detected at a point 6.6 kmdistant from a transmitter tower. The electric field amplitude of the signal at that point is 780mV/m. What is the magnetic field amplitude of the signal at that point
An object of mass 2 kg is moving on a spring with a frequency of 120 Hz and an amplitude of 1.5 m. What is the objects maximum velocity
Describe what the Zeroth Law of Thermodynamics is in your own words. Also, draw a scenario that verifies the Law is accurate. State the other Laws of Thermodynamics
The density of a 5.0-m long rod can be described by the linear density function ?(x) = 125 g/m + 13.3x g/m2. One end of the rod is positioned at x = 0 and the other at x = 5 m
A 75-kg athlete does a single-hand handstand. If the area of the hand in contact with the floor is 125 cm2, what pressure is exerted on the floor
You are given a container with 56 g of hydrogen atoms. What is the total charge on the electrons in the container
The blackbody radiation emitted from a furnace peaks at a wavelength of 3.4 10-6 m(0.0000034 m). What is the temperature inside the furnace
A roller coaster (370 kg) moves from A (5.00 m above the ground) to B (25.0 m above the ground). What is the change in the car's kinetic energy
Suppose the horizontal velocity of the wind against a sail is 5.5 m/s parallel to its front surface and 3.3 m/s along its back surface. Calculate the approximate force on a square meter of sail in N
A solenoid 10.0 cm in diameter and 65.8 cm long is made from copper wire of diameter 0.100 cm, with very thin insulation. What power must be delivered to the solenoid
In a hydraulic system, the larger piston to be used to lift a 1670kg car has a diameter of 24.2cm, If instead compressed air at 115 psi of pressure is used, what is the largest mass car (in kg) that the system can lift
A child goes down a playground slide with an acceleration of 1.30. Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 34.0 below the horizontal.
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