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When an object is 15.5cm from a lens, an image is formed 14cm. from the lens on the same side as the object.
a) What is the focal length of the lens?
b) Is the lens converging or diverging?
c) If the object is 12.0mm tall, how tall is the image?
d) Is it erect or inverted?
A loudspeaker of mass 15.0 is suspended a distance of h = 2.30 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30. What is tension in each cable.
If you mix 2.5g of 100 degree celcius steam with 60g of 0 degree celcius ice. what percentage of the ice remains solid
An electron is initially at rest just outside a large copper surface that has the charge density of 1.20 x10-6 C/m2. How far has the electron moved in 1.07 x10-9 s if the field is uniform over this region.
Two charges are placed on the x axis. One charge (q1 = +8.97mC (microC)) is at x1 = +3.40cm, Calculate the net electric field at x = 0cm
Ladder 6.55 m long leans against the side of a building. If the ladder is inclined at an angle of 65.5° to the horizontal, what is the horizontal distance from the bottom of ladder to the building.
The acceleration due to gravity at the surface of a planet is 18 m/s2. find the speed of the satellite to maintain this stable orbit
The circuit in the figure below consists of wires at the top and bottom and identical metal springs in the left and right sides. estimate the magnitude of the magnetic field
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 4.50 m/s2
Evaluate the magnitude of the acceleration of each mass. What percentage of error in would be made if the moment of inertia of the pulley were ignored? Ignore friction in the pulley bearings.
Gas in a container is at a pressure of 1.1 atm and a volume of 6.0 m3. What is the work done on the gas if it expands at constant pressure to twice its initial volume
A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0° above the horizontal. find the magnitude of the frictional force exerted on the ladder
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
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