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Find the smallest radius of an unbanked track around which a bicyclist can travel if her speed is 31 km/hand the μs between tires and track is 0.31?
An electron is released in a region where there is a varying electric potential. Will the electron move toward the lower potential region or the higher potential region
A driver traveling at 59 km/h sees a chicken dash out onto the road and slams on the brakes. Accelerating at -7 m/s2, the car stops just in time 24.3 m down the road. What was the driver's reaction time (i.e., the time that elapsed before he engag..
A guitar player tunes the fundamental frequency of a guitar string to 300 Hz. (a) What will be the fundamentalfrequency if she then increases the tension in the string by 20%?
Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale
How many centimeters thick would the concrete need to be so that 18.0 per cent of the neutrons are transmitted.
A car has aconstant speed of 17.0 m/s on a road. The car goes through a dip inthe road whose radius of curvature is 65.0 m. determine The centripetal force acting on the car
a sheet of glass has nred 1.52 and nviolet 1.55. a narrow beam of white light is incident on the glass at 30 degrees.
an average neutron star has approximately the same mass as the sun but is compressed into a sphere of radius roughly 10
a hare and a tortoise compete in a race over a straight course 2.15 km long. the tortoise crawls at a speed of 0.210 ms
Two children, with masses 31 kg (on the left) and 45 kg (on the right), sit at opposite ends of a 3.2 m long seesaw with mass 23 kg, find the net torque on the seesaw
If a beam is incident normal (perpendicular to the surface) to a plane mirror, what is the angle of reflections
two wooden blocks rest on an inclined plane making an angle of 30 degrees to the horizontal. the coefficient of friction between the block and plane for the first uk= 0.20, how fast is each block moving when it reaches the bottom
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