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In reaching her destination, a backpacker walks with an average velocity of 1.22 m/s, due west. This average velocity results because she hikes for 6.44 km with an average velocity of 2.53 m/s, due west, turns around, and hikes with an average velocity of 0.470 m/s, due east. How far east did she walk? ____km?
A 1.2m long ramp is inclined at 13 degrees to the horizontal. A solid ball is released from rest at the to of the ramp. Find it's translational acceleration
An artillery expert fires a cannonball at an angle of 36.87o at an enemy encampment sitting on a plateau 40 m high and 300 m horizontally from the cannon. How long was the cannonball in the air
Determine the greatest vertical displacement of the pendulum (height). The mass lost by the rocket during these 30.0 is negligible. What impulse does an engine impart to the rocket?
A student standing on a stationary skateboard tosses a textbook with a mass of mb = 2 kg to a friend standing in front of him. What is the magnitude of the velocity of the book
A monatomic ideal gas expands from point A to pointB along the path shown in the drawing. Determine the work done by the gas
An alpha proton consisting of 2 protons and 2 neutrons (q = 0) is moved from a point 3nm due north of a carbon nucleus with 6 protons and 6 neutrons to a point 2nm due south of the carbon nucleus
A solenoid of length 3.06 cm and diameter 0.663 cm is wound with 170 turns per cm. what is the magnetic flux through one of the windings of the solenoid
A light wave in air is incident on a water surface, (a) At what angle of incidence are the reflected and refracted waves at right angles to each other? What is the reflectivlty of the water for normal incidence? (c) At what angle of incidence is this..
Three masses ( 3kg 5kg 7kg) are located in the xy-plane at the origin, (2.3 m, 0), and (0, 1.5 m), respectively. Determine the center of mass of the system
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 90.7 cm as its objective and a 11.5-cm focal length lens as its eyepiece
A parachutist with mass 86.0 kg jumps from an airplane traveling at a speed vi=112 km/hr at a height H=2570 m. He lands with a speed of vf=5.21 m/s.
A 1792 kg safe is 3.01 m above a heavy-duty spring when the rope holding the safe breaks. What is the spring constant of the spring
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