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A covex lens of focal length 10 cm placed 40 cm in front of aconcave lens of focal length 25 cm.A small object is placed 20 cmin front of the convex lens calculate the location of the finalimage relative to the second lens. Include a ray diagram
An electron is suspended in a vacuum between two oppo- sitely charged horizontal parallel plates. What is the voltage across the plates
An automobile crankshaft transfers energy from the engine to the axle at the rate of 110 kW when rotating at a speed of 2170 rev/min. What torque does the crankshaft deliver
As a 1.00 cm diameter plunger reduces the height of the column of air inside the chamber from 7.00cm down to 0.50cm, Determine the air pressure inside the chamber after compression
For someone who chooses y=0 to be 5 meteres above the ground and up as positive, what will he get for the potential energy
A 0.058 kg aluminum bullet traveling at 481 m/s strikes an armor plate and comes to a stop. what is the bullet's temperature change in degrees Celsius
You hold a small plane mirror 0.50 m in front of your eyes, Find the height of the bottom of the mirror such that the lowest point the person can see on the building is 22.9 m above the ground
At one time, television sets used "rabbit-ears" antennas. Such an antenna consists of a pair of metal rods. The length of each rod can be adjusted to be one-quarter of a wavelength of an electromagnetic wave whose frequency is 125 MHz. How long is ea..
Brian is trying to pull Julie on a sled across a flat snowy field. Brian pulls on a rope attached to the sled. how much force must Brian exert on the rope to start moving the sled
Imagine removing one electron from every atom in a tiny cube of gold 1 mm on a side. (Never mind how you would hold the resulting positively charged cube together.) Do the same thing with another such cube a meter away.
An object is placed 15 cm from a converging lens with a 5.0-diopter refractive power. At what distance from the object will the image be located
A banked circular highway curve is designed for traffic moving at 67km/h. The radius of the curve is 209 m. Traffic is moving along highway at 48km/h on a rainy day.
A block is attached to a ceiling by a spring fo force constant k. When pulled down and released the block undergoes simple harmonic motion. The amplitude is 2, and the frequency is 1/(16pi). If the mass of the block is 3.14 kg, what is the spring ..
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