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A fortune teller's glass ball is 10 cm in diameter. Her secreting is placed 6 m from the edge of the ball.
1. The crystal ball is removed and a thin lens is placed where the center of the ball had been. If the image is still in the same position, what is the focal length of the lens?
the dentists chair uses a hydraulic press in which the radius of the smaller piston is 3 cm. the dentist wishes to
A cockroach of mass m lies on the rim of a uniform disk of mass 4m that can rotate freely about its center like a merry-go-round. estimate the angular velocity of the cockroach-disk system
For a damped oscillator with a mass of 290 g, a spring constant 80 N/m and a damping coefficient of 57 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 26 cycles.
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the crowd hopes the ball will clear the crossbar, By how much does the ball clear or fall short of clearing the crossbar
A dockworker applies a constant horizontal force of 85.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. What is the mass of the block of ice
A sqaure with sides of length 2m is perpendicular to a magnetic field of strength 10 T. If the square is rotated by 60o ,what is the change in magnetic flux through the square
A 30.0- goldfinch lands on a slender branch, where it oscillates up and down with simple harmonic motion of amplitude 3.50×10?2 and period 1.50. What is the maximum acceleration of the finch
The head of a grass string trimmer has 100 g of cord wound in a light, cylindrical spool with inside diameter 3.00 cm and outside diameter 18.0 cm as shown in the figure below. The cord has a linear density of 10.0 g/m. A single strand of the cord..
A marble is projected up along a 11 ° incline track at an initial speed of 2.2m/s and then coasts without friction. How far did the marble travel before it comes to its momentary rest point
Light is incident on a thin prism for which n= 1.5. Find the angle of deviation for the emerging beam
You are driving along the street at the speed limit (35mph) and 50 meters before reaching a traffic light you notice it becoming yellow. What is your speed as you cross the intersection
a patient is going to be prescribed bifocals which will be 2.00 cm from the eye. the prescribed powers in diopters for
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