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A microscope has an objective that has a focal length equal to 6.6 mm. The eyepiece provides an angular magnification of 11 for a person whose near point is 25 cm. The tube length is 18 cm.
a) what is the laternal magnification of the objective?
b) what is the magnifying power of the microscope?
An ice cube sliding along the ground at 5 m/s goes off a ramp pointed straight up as shown, What is the speed of the ice cube when it comes down, just before it hits the ground
A certain ac signal at 1000 Hz is applied across an inductor and a 100-ohm resistor. If the power factor of the circuit is 0.4, what is the impedance of the circuit
A 1500 -kg automobile travels at a speed of 75 -km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop.
What was the initial speed of the arrow. A block with mass m = 19.7 kg slides down an inclined plane of slope angle 35.8 deg with a constant velocity. It is then projected up the similar plane with an initial speed 1.05 m/s. How far up the incline w..
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 273 N for 7.2 s, What is the work done by friction
what is the speed of the proton in the beam.define the spread in these values.
A 2.65 block is pushed 1.69m up a vertical wall with a constant speed by a constant force of magnitude F applied at angle 55.4 degrees with the horizontal. g= 9.8 m/s2. If the coefficient of kinetic friction between the block & wall is 0.54, Calcu..
A sotne of mass 0.3 kg tied to the end of string in ahorizontal plane in whriled round in a acircle of radius 1m, What is the tension in the string? What is the max speed with which the stone can be whriled around
Forces of 11.0 N norths, 19.5 N east, and 15.90 N south are simultaneously applied to a 3.70 kg mass as it rests on an air table. What is the magnitude of its acceleration.
Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 134 km long, 39.4 km wide, and 187 m thick.
A man pushes a lawnmower for 13.1 m along a handle that makes a 28.2° angle with the ground. He pushes with a force of 42.8 N even as the force of friction between the lawnmower and the ground is 13.7 N.
A propeller is modeled as five identical uniform rods extending radially from its axis. what is its rotational kinetic energy
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