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According to a reliable report, in 1795 a member of the Turkish embassy in England shot an arrowto a distance of 441m. According to a less reliable report, a few years later the Turkish Sultan Selim shot an arrow to 889 m. In each of these cases calcualte what must have been the minimum initial speed of the arrow.
An aircraft weighing 803 N is accelerated at 10 m/s2 for 9 seconds, at which time the aircraft launches. How much work was done on the aircraft
A 51-kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal. What is the magnitude of the kinetic frictional force
the workman wants to push a box up a 20.0 degree incline. if it takes 70 newtons of force to start the box moving how
A capacitor is constructed of two 5.3 m2 parallel metal plates separated by an air gap of 0.010 mm. An electric potential of 25 V is applied to the capacitor. calculate the capacitance of the structure
A 21.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 3.50 cm in diameter. How far to the side does the top of the pole flex
A 5.0 deep swimming pool measures 30 by 16. What force does the water exert on the bottom of the pool
A 2.50-kg stone is dropped from rest at a height of 3.75 m. What impulse does gravity impart to this stone from the instant
To stretch a certain spring by 2.70cm from its equilibrium position requires 8.00J of work. What is the force constant of this spring
A 30 microF capacitor and a 5.45 miliH inductor are connected in series with an open switch. What is the angular frequency of the charge oscillations in the capacitor
A damped mass-spring system oscillates at 280 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.4 cm and the energy of the oscillating system is then 84 J.
An electron is located on a pinpoint having a diameter of 1.90 µm. What is the minimum uncertainty in the speed of the electron
q1. a 59-g ice cube at 0degc is heated until 52 g has become water at 100degc and 7.0 g has become steam at 100degc.
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