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the 1994 winter olympics include theaerials competition in skiing. in this event skiers speed down aramp that slopes sharply upward at the end. the sharp upward slopelaunches them into the air, where they perform acrobatic maneuvers.in the womens competitions, the end of a typical launch ramp isdirected 63 degrees above the horizontal. with this launch angle, askier attains a height of 13m above the end of the ramp. what isthe skiers launch speed?
A baseball is bunted down the third-base line leaving the bat from a height of 0.850m with an initial velocity of 4.00m/s at an angle of 36.87° above horizontal, what is the baseball's tangential acceleration at maximum height
q1. two stationary positive point charges charge 1 of magnitude 355 nc and charge 2 of magnitude 1.8 nc are separated
A 12.0-V battery produces 205mA when it's across a 47.5? load, Find the potential difference across the battery's terminals
A 110 ball and a 250 ball are related by a 38--long, massless, rigid rod. The balls rotate about their center of mass at 150 what is the speed of the 110 ball.
Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. What were Nate\'s speeds immediately before and after the collision
A uniform disk of radius 0.495 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
A power plant delivers energy at 880 MW using steam turbines. The steam goes into the turbines superheated at 625 K, What is the entropy increase per kilogram of the downstream river water
The total charge that an automobile battery can supply without being recharged is given in terms of Ampere-hours. If each of the two headlights draws 1.7 A , find out the time before your battery is "dead"
In creating his definition of horsepower, James Watt, the inventor of the steam engine, calculated the power output of a horse operating a mill to grind grain or cut wood.
Calculate the y-component of the magnetic force.
An artillery shell is red with an initial velocity of 328 m/s at 51.1 degrees above the horizontal. To clear an avalanche, it explodes on a mountainside 42.1 s after fi ring. What are the (a) x and (b) y coordinates of the shell where it explod..
The mass of an empty 6.34 -gallon container is 2.40 kg. The mass of the same container filled with unknown fluid is 17.0 kg. What is the density of the fluid
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