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A microscope uses an eyepiece with a focal length of 1.49 cm. Using a normal eye with a final image at infinity, the tube length is 17.7 cm and the focal length of the objective lens is 0.65 cm. What is the magnification of the microscope?
Explain what is the current in the cell during this period? Assume that the gold ions carry one elementary unit of positive charge.
The engine of an aircraft propeller delivers an amount of power 179hp to the propeller at a rotational velocity of 2310rev/min. How much torque does the aircraft engine provide
Two isotopes of carbon, carbon-12 and carbon-13, have masses of 1.993 10-26 kg and 2.159 10-26 kg, Determine the spatial separation between the two isotopes after they have traveled through a half-circle
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. obtain How long is the arm of the centrifuge
Suppose a star with radius 8.61 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiation. What is the surface temperature of the star
The maximum induced emf in a generator rotating at 249 rpm is 44 V. How fast must the rotor of the generator rotate
Derive from the Uncertainty Principle a formula for the relative spread of the spectral line that corresponds to the longest wavelength of the Lyman series.
A pulley hanging off the side of a building supports a 0.57 kg bucket on a rope. The pulley releases rope as the bucket is lowered to the ground. What is the distance to ground
A 1.0 μF capacitor has a potential difference of 6.0 V applied across its plates. how much additional energy does the capacitor store
After getting a drink of water, a hamster jumps onto an exercise wheel for a run. Find the work done by the hamster to get the exercise wheel moving
question1consider a simple pendulum consisting of a point mass m attached to the end of a mass less rod. the pendulum
A 300 kg elevator is being pulled upwards by a steel cable at a constant velocity. What is the net force on the elevator
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