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On a banked race track, the smallest circular path on which cars can move has a radius of 112 m, while the largest has a radius of 165 m. The height of the outer wall is 18 m. Find (a) the smallest and (b) the largest speed at which cars can move on this track without relying on friction. (c) If race car one is travelling at 70 mph and race car two is travelling at 85 mph, how fast does race car 1 have to move on the track to catch up to race car 2?
A person of mass M lies on the floor doing leg raises. His leg is 0.85m long and pivots at the hip, How far does the entire body's center of mass rise
How much work is done by pressure in forcing 6.6 m3 of water through a 13.0 mm internal diameter pipe if the difference in pressure at the two ends of the pipe is 1.0 atm
A glass plate having parallel faces and a refractive index of 1.55 lies at the bottom of a liquid of refractive index 1.62. Compute the angle of refraction of this light in the glass
35MW of power at 45kV (rms) arrives at a town from a generator via 3.4? transmission lines. Calculate the fraction of the power generated that is wasted in the lines
At a distance rl from point charge the magnitude of the electric field created by charge is 248 N/C. After a distance r2 from the charge, field has a magnitude of 132N/C. Find ration r2/r1.
A 0.93-µF capacitor is charged by a 37.0-V power supply. Find the maximum current in the resulting oscillations
A fixed 17.3-cm-diameter wire coil is perpendicular to a magnetic field 0.49T pointing up. In 0.15s , the field is changed to 0.33T pointing down. obtain the average induced emf in the coil
A 80-g bullet is fired from a rifle having a barrel 0.582 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 14100 + 9100x - 24250x2, where x is i..
calculate the weight of air at 20 c in a room that measures 5.06 x 4.50 x 3.25 mpart a give your answer in newtons.
Pulsars are neutron stars that emit X rays and other radiation insuch a way that we on Earth receive pulses of radiation from thepulsars at regular intervals equal to the period that they rotate.Some of these pulsars rotate with periods as short a..
An object 0.680cm tall is placed 18.5cm to the left of the vertex of a convex spherical mirror having a radius of curvature of 25.0cm. Calculate the position of the image
a ray of light strikes a flat 2.00-cm-thick block of glass n1.50 at an angle of 30 degrees with respect to the normal.a
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