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A concave mirror has a focal length of 43.3 cm. The distance among an object and its image is 75.0 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the center of curvature.
A child goes down a playground slide that is inclined at an angle of 25.0° below the horizontal. Find the acceleration of the child
Block B in the figure below weighs 730 N. The coefficient of static friction between block and table is 0.24. Find the maximum weight of block A for which the system will be stationary
calculate the molarity and the molality of an nh3 solution made up of 30.0 g of nh3 in 70.0g of water. the density of
A wave is described by the equation y = 29.0 sin(93.0t) where y is in meters and t is in seconds. What is the frequency (in Hz) of the source of this wave?
The hot resistance of a flashlight bulb is 2.20 , and it is run by a 1.53 V alkaline cell having a 0.100 internal resistance. Calculate the power supplied to the bulb using I2Rbulb
Two polarizers are oriented at 42o to each other and apolarized light is incident on them. If only 16 percent of thelight gets through both of them, what is the angle between theinitial polarization direction of the incident light and the firstpolari..
a homemade capacitor is assembled by placing two 9 in. pie pans 7 cm apart and connecting them to the opposite
An isolated conductor of arbitrary shape has a net charge of +1.10×10-5 C. Inside the conductor is a cavity within which is a point charge q = +4.40×10-6 C. obtain the charge on the outer surface of the conductor
Imagine a solar electric power plant that operates by using a gigantic mirror to concentrate light on the boiler for a steam engine. What is the maximum electric power
A 10.3 kg block is dragged over a rough, horizontal surface by a 63.6 N force acting at 21° above the horizontal. Find the total change in the block's kinetic energy
A 70.0kg man jumps 1.00 m down onto a concrete walkway. Hisdownward motion stops in 0.0200 seconds. If he forgets tobend his knees, what force is transmitted to his leg bones
You dip your finger into a pan of water three times each second, producing waves with crests that are separated by 0.16 m. Determine the frequency of these water waves
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