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Question: An arrow is shot at an angle of Î =45â above the horizontal. The arrow hits a tree a horizontal distance D=220m away, at the same height above the ground as it was shot. Use g=9.8m/s2 for the magnitude of the acceleration due to gravity.
Part A: Find ta, the time that the arrow spends in the air.
Part B: How long after the arrow was shot should the apple be dropped, in order for the arrow to pierce the apple as the arrow hits the tree?
A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane land intersects another runway, How much time is needed for the plane to clear the intersection
How wide a gap should be allowed between the 50-ft-long paving slabs of concrete in a street so that the slabs will touch each other at a temperature of 90°F?
Evaluate the z-component of the angular momentum and the kinetic energy of a particle on a ring that is described by the (unnormalized) wavefunctions e^iF ,e^-2iF ,cosF ,(cosf)e^iF , (sinf)e^-iF
A wave pulse travels down a slinky. The mass of the slinky is m = 0.94 kg and is initially stretched to a length L = 7.5 m. What is the speed of the wave pulse
the charges and coordinates of two charged particles held fixed in an xy plane are q1 3.10 ?c x1 4.39 cm y1 -0.0920
we can assume that the arm moves with constant speed during each swing. Illustrate what is the acceleration of a 1.3g drop of blood in the fingertips at the bottom of the swing?
What is the maximum allowable DC current when using the DMM Model 72-7940 DC Current Function and What is the maximum allowable AC current when using the DMM Model 72-7940 AC Current Function
Two cars traveling with the same speed move directly away from one another. On car sounds a horn whose frequency is 185 Hz and a person in the other car hears a frequency of 167 Hz. What is the speed of the cars?____m/s? Consider the projectile befor..
A train moving with a speed of 31.7 m/s sounds a 140 Hz horn. Assume the stationary observer sounds a horn that is identical to the one on the train. What frequency is heard from this horn by a passenger in the train?
a mass m orbits around a planet of mass m in a parabolic orbit of the form y x24l which has focal length l. find the
Noting that the magnetic field lines of a bar magnet resemble the electric field lines of a pair of equal and opposite charges, do you expect the magnetic field to rapidly decrease in strength with distance from the magnet? Is this consistent with..
its nighttime and youve dropped your goggles into a swimming pool that is 4.0 m deep. if you hold a laser pointer 1.0 m
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