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An object is placed 19 cm to the left of a converging lens of focal length 25 cm. A diverging lens of focal length 12 cm is 25 cm to the right of the converging lens. Find the position and magnification of the final image.
___cm
___x
A crane is required to pull up a load of building supplies from the ground to a height of 90 m at a constant velocity. Find the power output required of the motor that pulls the cable up
The lightbulb in the circuit shown in the figure(Figure 1) has a resistance of 14? and consumes 9.7W of power, find speed of the rod
A horizontal beam of electrons initially moving at 4.1 107 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates.
A 71kg pole-vaulter falls from rest from a height of 4.6m onto a foam-rubber pad. The pole-vaulter comes to rest 0.4s after landing on the pad.
Sound Check, a merchandising company specializing in home computer or speakers, budgets its monthly cost of goods sold to equal 70% of sales. Calculate the budgeted merchandise purchases.
A small car with mass 0.690 travels at constant speed on the inside of the track that is a vertical circle with radius 5.00. If the normal force exerted by the track on the car when it is at the top of the track (point) is 6.00, what is the normal fo..
According to highly accurate GPS-measurements , the continent of North America is drifting with a speed of 1cm/year. estimate the kinetic energy the continental US has
A daredevil on the motorcycle leaves the end of a ramp with a speed of 36.0 m/s. If his speed is 34.20 m/s while he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. In meters
Air passes through a large-diameter glass tube, then through a small-diameter tube, and finally through a large-diameter tube again, Find the velocity of the air in the small-diameter tube
A 28.0-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface, What is the force of friction acting on the block
A Volleyball is spiked so that it has an initial velocity of 15 m/s directed downward at an angle of 55 degrees below the horizontal. Find the horizontal component of the ball’s velocity when the opposing player fields the ball?
A dockworker applies a constant horizontal force of 79.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 15m in a time 4.50s. What is the mass.
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