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A mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. Angling the mortar at an angle of ? = 52.0o (as shown), the crew fires the shell at a muzzle velocity of 189 feet per second. How far down the hill does the shell strike if the hill subtends an angle ? = 35.0o from the horizontal? (Ignore air friction.)
How long will the mortar shell remain in the air?
How fast will the shell be traveling when it hits the ground?
An electron and a anti-electron (Positron) circle eachother at a distance of 1.00x10^-19m. What is the electrostatic force between the particles
a man stands on the roof of a building of height 16.1m and throws a rock with a velocity of magnitude 26.8 m/s, Calculate the maximum height above the roof reached by the rock
A 76 kg window cleaner uses a 13 kg ladder that is 5.0 m long. He places one end on the ground 3.0 m from a wall, What is the angle of this force on the ladder
A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates some clever design technology and some basic physics. What is the radius of the arc of the teardrop at the top
A 1.7 kg block and a 2.3 kg block are attached to opposite ends of a light rope. Find the acceleration of the lighter block
Define the carrier power, total power and sideband power in the AM signal.
(a) How much does a 70.0 kg person weigh on the Earth? (b) How much would she weigh on the Moon (gmoon = 0.166g)? (c) How much would she weigh on a neutron star where gstar = 1.43×1011g?
Find the action variable for a ball with speed v bouncing between two elastic walls a distance d apart. Find the angle variable
If its length is 49.8 m when measured from inside the spacecraft, what is its length measured by a ground observer
The G string of a guitar which should be 397 Hz is playing flat at 380 Hz. What percentage change in the tension of the wire is necessary so as to tune the string to 392 Hz.
The concentration was reported as 10% CO2 at a temperature of 30oC and a pressure of 1.2 atm. The flow rate of flue gas is 18,000 m3/min. Determine the Partial pressure of CO2 in atm.
A car traveling at 18 {rm m/s} runs out of gas while traveling up a 24.0^circ slope. How far up the hill will it coast before starting to roll back down.
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