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An engraver utilizes a magnifying glass (f = 9.30 cm) to examine some work, as in the drawing. The image he sees is located24.0 cm from his eye, which is his near point.
a) What is the distance among the work and the magnifying glass?
b) What is the angular magnification of the magnifying glass?
What is the mass in kg of the air in a scuba tank that has an internal volume of 0.01 m3 and it is pressurized o that the density of the air in the tank is 240 kg/ m3
A shell, fired from a cannon, has a muzzle speed (the speed as it leaves the barrel) of 800 ft/s. The barrel makes an angle of 45o with the horizontal and, for ease; the barrel opening is assumed to be at ground level.
When high-energy charged particles move through a transparent medium with a speed greater than the speed of light in that medium, Calculate the speed of the electrons in the water. The speed of light in water is 2.25 108 m/s
A resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 1.50 µH and the capacitor has a value of 2.20 pF. Find the frequency of the radio station
A stone with a mass of 0.600kg is attached to one end of a string 0.800m long, Find the maximum speed the stone can attain without breaking the string
a 150lb male athlete is running on a treadmill machine at a speed of 10mi/hr in a thermally insulated room. after one hour how much weight will the athlete lose
For silver electrode (hint: click just below the word "cesium"), what is the highest energy of an electron ejected by light of 250 nm.
A spherical water drop 4.2 ?m in diameter is suspended in calm air due to a downward-directed atmospheric electric field of magnitude E = 15700 N/C. How many excess electrons does it have
a lower tank contains water while an upper tank contains air with a negligable concentration of water vapor. what mass of water vapor diffuses through the tube each hour
A sugar solution with n=1.42 contains an air bubble of radius1.00 cm. Where is the image of a sugar crystal 3.00 cm from the bubble's surface when viewed through the center of the bubble? Does the bubble behave like a converging or diverging lens?
What is the electrical potential at the surface of a gold nucleus? The radius is 6.6 x 10-15 m and the atomic number Z = 79
A football is thrown horizontally with an initial velocity of (18.9 m/s)x. Calculate the direction of the velocity with respect to the positive x-axis at this time
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