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A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal THREE TIMES her weight as she does through the dip. If r= 20.5m, how fast is the roller coaster traveling at the bottom of the dip?
After falling from rest from a height of 30m, a 0.53 kg ballrebounds upward, reaching a height of 20m. what average force wasexerted on the ball
A 54-kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal. Find the work done by the kinetic frictional force that acts on the skis
A 60. kg student jumps from the 10. meter platform at EKU'sswimming complex in to the pool below. Determine her PEg at the top of the platform.
In the figure set V = 0 at infinity and let the particles have charges q1 = +q = -5.40×10-5 C and q2 = -6q. They are seperated by d = 30 cm, What is the positive position
The earth orbits the sun in an approximately circular orbit of radius 1.496x10^11 m, Use these data to determine the mass of the sun
The electric field on the surface of a 10 cm diameter sphere is perpendicular to the sphere and has magnitude 37 kN/C. What is the electric flux through the sphere?
A suspension bridge is 60.0 m above the level base of a gorge. A stone is thrown or dropped from the bridge. Neglect air resistance. Let g = 10.0 m/s2. how long does it take for it to fall to the base of the gorge
A sound wave moving through water has a frequency of 256Hz and a wavelength of 5.77m.What is the speed of sound in water.
The electric field inside a 50.0?cm? long copper wire is 5.00mV/m .What is the potential difference between the ends of the wire
In the double-slit experiment, light particle is also called photon. Does the photons go through the slits in the double-slit experiment, How are double-slits related to holograms
question a 5 turn loop of wire with a radius of 4cm moves toward a 0.15t magnetic field in a 3 second time interval.
the mass of a copper atom is 2.58 10-25 kg and the density of copper is 8 920 kgm3 .a determine the number of atoms in
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