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Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber.
If 3.000 oz of gold, with a mass of 82.89 g, is pressed into a leaf of 6.000 µm thickness, what is the area of the leaf?
The wavelength of visible light ranges from 400 to 700. Find the ranges of this light's angular frequency and Find the ranges of this light's wave number
a skier starts from rest at the top of a frictionless inclineof height 20.0m. How far does the skier travel on the rough horizontal surface
question1an electron moves to the right with a speed of 0.82c relative to laboratory frame. a proton moves to the left
The pressure of an ideal gas remains at 200 Pa while 1000 joules of heat are removed and its internal energy increases by 2000 joules. What was the change in the volume of the gas
A rope pulls on the lower block in the figure with a tension force of 20 N. What is the acceleration of the 2.0 kg block
A 54.00 kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find out the force (magnitude and direction) exerted on her by the bungee cord at an instant while her downward acceleratio..
A small plastic ball of mass 9.44 × 10-3 kg and charge +0.181C is suspended from an insulating thread and hangs between the plates of a capacitor, What is the magnitude of the charge on each plate
an alumanum disk is held between the poles of a power magnet and then pulled out. the person pulling on the disk feels
A person pushes a 12.3-kg shopping cart at a constant velocity for a distance of 16.5 m on a flat horizontal surface. What is the magnitude of the force that the shopper exerts
The escape speed from a distant planet is 39 km/s. If the acceleration of gravity on the planet is 14.5 m/s^2, what is the radius of the planet
An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. what mass of the isotope will be left after 9.3 minutes have elapsed
A tennis ball is hit with a speed of 27 m/s at an angle of 45o. It lands on the flat roof of a 13-m-tall building. What is its velocity at landing
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