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An archer shoots an arrow with a velocity of 45 meter per second at an angle of 50 degree with the horizontal. An assistant standing on the level ground 150 meter downrange from the launch point throws an apple straight up with the minimum initial speed necessary to meet the path of the arrow.
(a) Evaluate the initial speed of the apple?
(b) Find at what time after the arrow launch should the apple be thrown so that the arrow hits the apple?
you are standing on a bridge that is 50.0 m above a dried up riverbed. what is the minimum spring constant that the bungee cord must have for you not to hit the riverbed
A weather vane initially at rest has a moment of inertia of 0.124 kg · m2 about itsaxis of rotation. A 25.0 g piece of clayis thrown at the vane and sticks to it at a point 19.0 cm from the axis.
a 25 kg box is acted on by a 45 n horizontal force. if the box accelerates at a rate of .75 ms2 what is the coefficient
An object of interest is 3 mm from an objective for a compound microscope with a lens power of +250 D. what is the magnifying power of the eyepiece
A particle moving north with a speed of 5600 m/s in a uniform magnetic field pointing upward with a strength of 0.42 T feels a force of 230 N toward the east
When jumping straight down, you can be seriously injured if you land stiff-legged. In a stiff-legged landing he comes to a halt in 1.8 ms. Find the average net force that acts on him during this time
A mechanic pushes a 2.4 103 kg car from rest to a speed of v, doing 5100 J of work in the process. During this time, the car moves 29.0 m. find the speed v and horizontal force exerted on the car
A 2.00 meter long wire loops carrying a current of 2.00 A is in the shape of an equilateral triangle. determine the maximum torque that acts on it
In 1656, the Burgmeister (mayor) of the town of Magdeburg, Germany, Otto Von Guericke, carried out a dramatic demonstration of the effect resulting from evacuating air from a container. what is the minimum number of horses required
A cylinder 0.150 in diameter rotates in a lathe at 620. What is the tangential speed of the surface of the cylinder
The lowest note on a grand piano has a frequency of 27.5 . The entire string is 2.00 long and has a mass of 430 . The vibrating section of the string is 1.88 long. Part A What tension is needed to tune this string properly?
Consider a series circuit with the following elements: a 255 ohms resistor, a 50.0 mu/F capacitor, and a 107 mH inductor. What is the inductor%u2019s reactance Xl
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