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The skier leaves the 20A?1 surface at 15 m/s
What is the magnitude of his component of velocity (m/s) perpendicular to the 45A?
1 surface just before he lands?
A parallel-plate capacitor has fixed charges +Q and -Q. By what factor does the energy stored in the electric field change
A projectile of mass 0.605 kg is shot straight up with aninitial speed of 18.3 m/s. (a) How high would itgo if there were no air resistance? (b) If theprojectile rises to a maximum height of only 7.02 m, determine the magnitude of the average force d..
A helicopter is lifting two crate simultaneously. One cable with a mass of 200.kg is attached to the helicopter by a cable. what is the tension in each of the two cables
Given a metal which has a coefficient of volume expansion given by B(T) = 8.0x10^-6 K^-1 + (1.2x10^-8 K^-2)T caluclate the work done by this is obaric process
In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. find the change in your weight if you were to ride an elevator from the street level, where you weigh 810 N, to the top of the building
q1. a roller-coaster car speeds down a hill past point a where r1 10.0 m and then rolls up a hill past point b where
a 1.0-cm-diameter pipe widens to 2.0cm then narrows to 0.5cm. liquid flows through the first segment at a speed of
A ball is thrown vertically upward with an initial speed of 19.6 m/s. Sketch a graph for the position, velocity, and acceleration of the ball for the first five seconds of its motion. How long does it take for the package to hit the ground
A 75 kilogram man sits on a 3.7 kg chair. Obtain the pressure exerted on the floor by each leg of the chair
a +3.0micro Coloumb point charge is placed at the origin, and a +12micro Coloumb is places at the point (2.0m,0), At what point along the x-axis is the electric field zero
NASA sends satellites to Mars by placing the satellite in a Keplerian orbit (around the sun) such that the perihelion is at the radius of the Earth's orbit (1 AU) and the aphelion is at the radius of Mars's orbit (1.52 AU). Most of the trip to Mar..
Aluminum's density is 2700 kg/m^3. An aluminum cube 3.4cm on a side is placed on a scale. What does the scale read when the cube is entirely in air
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