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A pistol that fires a signal flare gives it an initial velocity (muzzle velocity) of 160 m/s at an angle of 56.0 degree above the horizontal. You can neglect air resistance.
Find what is the maximum height?
A submerged scuba diver looks up toward the calm surface of a freshwater lake and notes that the Sun appears to be 32 degrees from the vertical. The diver's friend is standing on the shore of the lake.At what angle above the horizon does the friend s..
In a torus of inner radius 1.0m and outer radius 1.5m, a toroidal magnetic field of strength 5.0 tesla is required in the middle (i.e at R = 1.25m). Calculate the current that must pass through the wire to produce the required magnetic field
A solid cylinder with a mass of 1.5 Kg initially at rest rolls down from a height of 2.00 m. What will be its speed when it reaches the bottom
a 7.4 cm-diameter-baseball has a mass 145 g and is spinning at 2000 rpm. Treating the baseball as a uniform solid sphere, whats its angular momentum
The car now stops, and the four people get out. By how much does the car body rise on its suspension owing to this reduce in weight.
A square wire loop with 1.87 m sides is perpendicular to a uniformmagnetic field, with half the area of the loop in the field asshown in the figure 30-44.
an ideal carnot engine has an efficiency of 25. if it were possible to run it backward as a heat pump what would be its
a board lies on top of 2 uniform cylinders that lie on a fixed plane inclined at an angle theta. the board has mass m
A box is pushed a distance d along a ramp at a constant speed by a horizontal force, Fa. The mass of the box is m. The ramp is inclined at an angle of ? above the horizontal.
The drawing shows Robin Hood (mass = 76.9 kg) about to escape froma dangerous situation. With one hand, he is gripping the rope thatholds up a chandelier (mass = 224 kg). When he cuts the rope whereit is tied to the floor, the chandelier will fall..
A certain lightbulb has a tungsten filament with a resistance of 19.1 ? when at 20.0°C and 139 ? when hot, Find the temperature of the hot filament
A candle is held 6.0 cm from the surface of a reflecting ball, and its image appears three-quarters of its actual size. What is the diameter of the ball
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