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You are in biology class and wish to look at a slide of petrified wood. The microscope you are assigned has only two lenses: an objective lens and an eye piece. The objective lens has a focal length of 4.5 mm and the eyepiece has a focal length of 10.0 mm (both are convex lenses). The distance between the two lenses is 20 mm. If the object viewed by the objective lens is 1.0 mm in height and is 7.0 mm away from the objective lens:
a.) Find the final image distance of the object.
b.) Find the height of hte final image.
During a car crash a 65kg person's head goes from traveling at 50kmh-1 to stationary in 0.15 s. What is the magnitude of the average net force acting on the head of a person with a 4.5kg head
A proton is released at the origin in a constant electric field of 850 N/C acting in the positive x-direction. Discover the change in the electric potential energy associated by the proton after it travels to x = 2.5 m.
A mass spectrometer has an adjustable magnetic field. When themagnetic field is 1.000e-1 T, a singly ionizedhydrogen atom (a proton) will strike the detector at a particular location.
In 2010, the men's record for the 26.22 miles Boston Marathon was 2 hours 5 minutes and 52 seconds. What was the average speed of the runner in units of m/s
consider a rotating bucket of water spinning with constant angular speed w. after the system stabilizes the water will
A cosmic-ray proton in interstellar space has an energy of 21.5 MeV, What is the magnetic field in that region of space
If you had a single polarizer, how might you determine whether or not light from a room light was polarized when emitted from the bulb.
q1. an artillery shell is fired with an initial velocity of 303 ms at 46deg above the horizontal. to clear an avalanche
A circular solenoid contains 100 turns of wire and carries a current of 2 amps. Calculate the magnetic flux through one turn of the wire making the solenoid
While a hybrid car brakes to come to a stop at a traffic light, describe the energy transfer and materials used to transfer of this energy
Two masses (mA = 4 kg, mB = 10 kg) are connected via a light string around a solid disk frictionless pulley (mp = 1 kg, rp = 20 cm). The coefficient of static and kinetic friction among all sur- faces is 0.2 and 0.1 respectively. The angle 1 = 30o wh..
A wheel consists of 20 thin spokes, each with mass 0.070kg , attached to a rim of mass 4.4kg and radius 0.85m. Find its rotational inertia
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