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A converging lens with focal length of +20cm is located 10 cm to the left of a diverging lens having a focal length of -15cm. If a real object is located 40 cm to the left of the first lens, locate and describe completely the image formed. A ray diagram would be greatly appreciated.
A microscope has a 16.8 cm tube length, a 0.64 cm focal length of the objective lens, calculate the microscope's magnification
A high-energy pulsed laser emits a 1.0-ns-long pulse of average power 3.4 *10^11 W. The beam is 2.1*10^-3 m in radius. Determine the energy delivered in each pulse
As light with a frequency of 4.286 x 10^14 Hz passes from air into a diamond, its speed v is 0.413 time in air is the same as the speed in vacuum which c= 3.0 x10^8, Calculate the value of wavelenghth of the light in air
In the quark model of fundamental particles, a proton is composed of three quarks: two "up" quarks, each having charge +2e/3, calculate the potential energy of the subsystem of two "up" quarks
Have you ever listened for an approaching train by kneeling next to a railroad track and putting your ear to the rail. how many times greater is the speed of sound in the rail than in the air
The gravitational acceleration on the Moon is a sixth of that on Earth. The weight of an apple is 1.03 N on Earth. (a) What is the weight of the apple on the Moon? (b) What is the mass of the apple?
A car has an initial speed of 30 m/s and slows uniformly to 10 m/s in 5 secs. Determine the distance it travels in the 3rd second (t=2s to t= 3s)
As an electron moves through a region of space , its speed decreases from 8*10^6 m/s to 3*10^6 m/s. Through what potential difference did the electron move
An elephant that has a mass of 7000 kg evenly distributes her weight on all four feet. estimate the pressure on each foot
An ideal gas at 300k has a volume of 15 liters at 15atm. calculate the final volume of the system, the work done by the system, the heat entering or leaving the system, the change in internal energy and the change in the enthalpy when the gas unde..
A step-up transformer is connected to a generator that is delivering 139 V and 110 A. what voltage is across the secondary
An object with a density of 901.0 kg/m3 and a mass of 895.0 kg is thrown into the ocean. Find the volume that sticks out of the water
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