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A woman standing on a hill sees a flagpole that she know is 60 feet tall. The angle of depression to the bottom of the pole is 14°, and the angle of elevation to the top of the pole is 18°. Find her distanse to the pole.
1. an object moves along the x axis according to the equation x3.00t 2 -2.00t3.00 where x is in meters and t is in
Elucidate in detail the image of the "A" you would see as you look into the balloon with "A" facing you.
A ball is thrown horizontally from an elevation of 140.0 m above ground with a speed of 20.0m/s. How long before it hits the ground and where will it be with respect to the starting point once it lands
A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 550 kg. Find the kinetic energy stored in the flywheel
A 65.0 kg skier initially at rest begins to slide down at a 10.0 degree slope. how fast will the skier be going at the end of the hill
At one point in a pipeline, water's speed is 3.30 m/s and the gauge pressure is 4.00×10^4 Pa. Find out the gauge pressure at a second point in the line 13.0 m lower than the first if the pipe diameter at the second point is twice that at the first.
A 72.8 kg skier encounters a dip in the snow's surface that has a circular cross section with radius of curvature of = 12.9 m. find the normal force exerted by the snow on the skier
In a certain nuclear reaction, outgoing protons are observed withenergies 16.2 MeV, 14.8 MeV, 11.6MeV, 8.9MeV, and 6.7MeV. Noenergies higher than 16.2MeV are observed. Construct a level scheme of the product nucleus.
A roller coaster is pulled up a hill of height 95m before being released to coast down a ramp that is inclined at 56 degrees above the horizontal. find the magnitude of average frictional force on the car
A proton enters the region between the two plates shown in the figure moving in the x-direction with a speed v = 1.61 106 m/s. The potential of the top plate is Vt = 245 V, and the potential of the bottom plate is Vb = 0 V.
a 0.135-g spider hangs from the middle of the first thread of its future web. the thread makes an angle of 5.29deg with
Find the speed and acceleration of an electron in the first two Bohr orbits of the Li++ Ion. Also find the acceleration of an electron in the first two bohr orbital of the H atom.
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