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An airplane pilot tries to fly directly east with a velocity of 800.0 km/h. If a wind comes from the southwest at 80.0 km/h, what is the relative velocity of the airplane to the surface of the earth?
a shaker table is a tool used in engineering tests to find out how a device responds to vibrations. it is simply a
Martha travels 25 miles north on her bike. Then, she travels 25 miles due east. What is Martha's displacement
a bicycle is racing around on a horizontal surface in a circle of radius 16 m. the force exerted by the road on the
A helicopter is ascending vertically with a speed of 5.20m/s. at a high of 125m above the earth, a package i dropped from a window. How much time does it take for the package to reach the ground? (Hint: the package's initial speed equals helicopte..
Imagine a game of tug of war where the winner must move the middle of the rope 1 meter in their direction. What was the work performed by the loosing team as they lost
Suppose a Proton is accelerated through a potential difference of 10 Gigavolts. Determine the proton's final kinetic energy
A jet flying faster than the speed of sound creates a shock cone of high pressure air. The angle of the shock cone depends on the speed at which the jet is flying. What will be the angle of the shock cone
A standard baseball has a circumference of approximately 23 cm. If a baseball had the same mass per unit volume as a neutron or a proton, about what would its mass be?
A 3.0kg block is attached to a string that is wrapped around a 2.0kg , 4.0-cm-diameter hollow cylinder that is free to rotate. Use conservation of energy to find the speed of the block as it hits the ground
a fully charged 12.0 volt car battery rated at 850 amp hours is connected to a spotlight rated at 150 watts for 12 volts. what current soed the spot operate on
A jogger travels a route that has two parts. The first is a displacement of 2.00 km due south, and the second involves a displacement that points due east.
A steel ball (density = 7860kg/m^3) with a diameter of 6.8 cm is tied to an aluminum wire 88 cm long and 2.0 mm in diameter. Find the amount of stretch in the wire at the top of the circle
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