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A microscope for viewing blood cells has an objective with a focal length of 0.57 cm and an eyepiece with a focal length of 3.2 cm. The distance between the objective and eyepiece is 12.3 cm. If a blood cell subtends an angle of 2.1 x 10-5 rad when viewed with the naked eye at a near point of 25.0 cm, what angle (magnitude only) does it subtend when viewed through the microscope?
A steel rod of mass m and length L has the linear expansion coefficient X. It is standing vertically and supports a box of mass M on its top. what is the work done by the rod
What percentage of the power of the battery is dissipated across the internal resistance and hence is not available to the bulb
Train car 1 has a mass of 6.5 x 10^4 kg and is sitting stationary on a track. Train car 2, with a mass of 9.30 x 10^3 kg, What is the speed of Train car 1 after the collision
A coin is placed 8.0 cm in front of a concave mirror. The mirror produces a real image that has a diameter 4x larger thanthat of the coin. What is the image distance
A shell is fired from a gun with a muzzle velocity of 35 m/s, at an angle of 60° with the horizontal. How far from the gun does the other fragment land
You sing into a well and find that the well resonates at frequencies of 176 Hz and 208 Hz with no resonances between these two frequencies. What is the frequency of the fundamental mode?
The displacement of a wave traveling in the positive x-direction is y(x, t) = (3.5 cm)cos(1.7x - 129t), where x is in m and t is in s. What is the frequency of this wave
One string of a certain musical instrument is 72.0 cm long and has a mass of 8.76 g . It is being played in a room where the speed of sound is 344 m/s . A)To what tension must you adjust the string so that, when vibrating in its second overtone, i..
An axon is the relatively long tail-like part of a neuron, or nerve cell. The outer surface of the axon membrane is charged positively, Thus, the membrane is a kind of capacitor, what is its capacitance
Aspace traveller has landed on the sruface of an unknown planet. He drops a small lead all from the top of his space ship and finds that is takes 3 seconds to reach the ground, 18m below. if the weight of the astronaut is 710N on earth, how much will..
if two masses m1 and m2 are confined to a circle and identical springs with spring constant k connect the masses find
A tuning fork with a frequency of 320.0Hz and a tuning fork ofunknown frequency produce beats with a frequency of 4.5Hz. What is the frequency of the other tuning fork
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