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An artillery shell is fired with an initial velocity of 300 m/s at 52.5° above the horizontal. To clear an avalanche, it explodes on a mountainside 45.5 s after firing. What are the x and y coordinates of the shell where it explodes, relative to its firing point?
A radio controlled car increases its kinetic energy from 4J to 12J over the distance of 2 m. What was the average net force on the car during this interval.
A 330-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 34° with the horizontal
In the process of changing a flat tire, a motorist uses a hydraulic jack. She begins by applying a force of 41 N to the input piston, determine the force that the output plunger applies to the car
A pole projects horizontally from the front wall of a shop. A5.1-kg sign hangs from the pole at a point 2.2m from the wall. What is the torque due to this sign
A commuter train passes a passenger platform at a constant speed of 35.5 m/s, What wavelength is detected by a person on the platform as the train approaches
What is the smallest diameter spot the eye can produce on the retina if the pupil diameter is 4.50mm ? Assume light with a wavelength of = 510nm
The sunlight reaching the earth has a maximum electric field 810 V/m. compute the maximum magnetic field associated with it.
Light known to be polarized in the horizontal direction is incident on a polarizing sheet. What angles does the transmission axis of the sheet make with the horizontal
A light bulb has a resistance of 280 ?. It is connected to a standard wall socket (120 V rms, 60.0 Hz).Determine the current in the bulb
On a warm day (86?F), an air-filled balloon occupies a volume of 0.250m3 and has a pressure of 18.0lb/in2, what is the volume of the air in the container
Calculate the force required to pull a copper ball of radius 3.00 cm upward through a fluid at the constant speed 6.00 cm/s. Take the drag force to be proportional to the speed, with proportionality constant 0.950 kg/s. Ignore the buoyant force.
A bungee cord is stretched between two poles with a force of 393 N. What is the velocity of a wave on this bungee cord
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