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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.
A girl is standing at the edge of the cliff 271 m above the ground. She reaches out over the edge of the cliff and throws a rock straight upward with a speed of 6.17 m/s. a) how long does it take the rock to hit ground? b) What is the speed of the ro..
An open railroad car of mass 2453 kilogram is coasting with an initial speed of 22 m/s on a frictionless, horizontal track. Find how much water has accumulated in the car
A current I flows in a semi-infinite straight wire along y = 2b, z = 0 from very large positive values of x to the point (0,2b,0), then around a semicircular wire centered upon (0,b,0) and in negative values of x in the z = 0 plane to the point (0,..
An amplifier supplies 5.0 Watts to a perfectly efficient loudspeaker at one end of a 10.0 cm diamter tube filled with air. What is the intensity of the sound at the other end of the tube
An LED is constructed from a pn-junction based on a certain GA-As-P semiconducting material whose energy gap is 1.9 eV. What is the wavelength of the emitted light
A marksman holds a rifle of mass 3.00 kg loosely in his hands, so as to let it recoil freely when fired. He fires a bullet of mass 5.00 g horizontally with a velocity 300 m/s. What is the recoil velocity of the rifle.
An isolated capacitor of unknown capacitance has been charged to a potential difference of 119 V. Calculate the unknown capacitance
The length of a simple pendulum is 0.70 m and the mass of the particle (the "bob") at the end of the cable is 0.24 kg. Using the position of the bob at its lowest point as the reference level, determine the total mechanical energy of the pendulum as..
A 2.0 m pendulum is released from rest when the support string is at an angle of 25 degrees with the vertical. What is the speed of the pendulum bob at the bottom of the string
A uniform stick 1.4 m long with a total mass of 300 g is pivoted at its center. With what angular speed is the stick spinning after the collision?
The image of a very distant car is located 25 cm behind a convex mirror. What is the radius of curvature of the mirror
solar cells can produce 39.8 w of electricity per square meter of surface area if directly facing the sun. how large an
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