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In a compound microscope, the focal length of the objective is 3.40 centimeter and that of the eyepiece is 6.40 centimeter. The distance between the lenses is 23 centimeter.
(a) Evaluate the angular magnification of the microscope if the person using it has a near point of 32 centimeter?
(b) Determine what is the magnification (not the angular magnification) of the objective?
A sled and rider with a combined mass of 50 kg are at the top of a hill 20 m above the level of ground below. After the push, what is the total mechanical energy of the sled and rider at the top of the hill
A roller-coaster car has a mass of 504 kg when fully loaded with passengers point A, what is the force exerted by the track on the car at this point
An electron traveling horizontally with velocity 1.55 x10^{5} m/s enters a region where a uniform magnetic field is directed into the plane of the paper, find the magnitude of the magnetic force exerted on the particle
A warehouse workerpushes a crate along the floor by a force of 29.0 N that points downward at an angle of 50.0^\circ below the horizontal. Find the vertical component of theforce
When the power is turned off on a turntable spinning at 78 rpm, you find that it takes 10.5 revolutions for it to stop while slowing at a constant rate. How much time passes until it stops
A 2000 kg car traveling at a speed of 23m/s skids to the halt on wet concrete where = 0.60. How long are the skid marks.
A man pulls a block of mass m = 23 kg up an incline at a slow constant velocity for a distance of d = 5.5 m. The incline makes an angle q = 29° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane is µk..
A 100 gram ball moving to the right at 4.5 m/s catches up and collides with a 450 gram ball that is moving to the right at 1.1 m/s. what is the speed of the 450 gram ball after the collision
A string vibrates according to the equation y = 0.5 sin 0.37 x cos 64 t, where x and y are in centimetres and t is in seconds. What is the velocity (in centimetres/second) of the component waves whose superposition can give rise to this vibration?
a particle of mass 0.350 kg is attached to the 100 cm mark of a meter stick of mass 0.150 kg. the meter stick rotates
A small turtle moves at a speed of 165 furlongs per fortnight. Find out the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and 1 fortnight = 14 days.
A 100% efficient transformer has 120 primary turns and 840 secondary turns. Calculate the primary voltage and primary current
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