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A submarine is 307 mhorizontally out from the shore and 127 m beneath the surface of the water. A laserbeam is sent from the sub so that it strikes the surface of thewater at a point 236 m from the shore.If the beam just strikes the top of a building standing directly atthe water's edge, find the height of the building.
How much work must be done to move a 3.8 kg chair 6.1 m acrossthe floor at constant velocity if the coefficient of kineticfriction between the chair and the floor is 0.64
A 10.0 -long solenoid of diameter 0.400 is wound uniformly with 800 turns. A second coil with 50.0 turns is wound around the solenoid at its center.What is the mutual inductance of the combination of the two coils?
a 120 turn coil of radius 1.8 cm and resistance 5.3 ? is placed outside a solenoid of radius 1.6 cm. Find the magnitude and direction of the current induced in the coil
A lamp hangs vertically from a cord in a descending elevator that decelerates at 1.4 m/s2. If the tension in the cord is 86 N, what is the lamp's mass
Find a largest image that can be completely imaged on a 35mm film.
An airplane propeller is 2.05m in length (from tip to tip) with mass 122 kg and is rotating at 2200 rpm (rev/min) about an axis through its center. You can model the propeller as a slender rod.
A rotating door is made from four rectangular glass panes, as shown in the drawing. find the magnitude of the door's angular acceleration
A positive charge of 4.90mC is fixed in place. From a distance of3.40 cm a particle of mass 5.60 g and charge +3.10 mC is fired with an initial speed of 74.0 m/sdirectly toward the fixed charge.
the near point of a given individual's eyes is 55cm. what focal length corrective lens should be prescribed so that an object can be clearly seen when placed at 25cm in front of the eye
an airplane flies in a horizontal circle of radius 4000 m at aconstant speed of 100m/s. The mass of the pilot is 63 kg. What is the net force on the pilot when the airplane isdirectly east of the circle's center
A 3 meter diamter steel excess hatch is located 20 meter (center of gravity) below the water level of an intake structure. What is the total force on the hatch
A railroad car of mass 4.0 * 10^4 kg moving at 5.0 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.50 m/s.
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