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A person is riding a bicycle, and its wheels have an angular velocity of 19.8 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. Through braking, the angular displacement of each wheel is 12.0revolutions. (a) How much time does it take for the bike to come to rest? (b) What is the angular acceleration (in rad/s2) of each wheel?
A car traveling at 40 m/s and a truck traveling at 10 m/s are on the same road. The car blows its horn with frequency 500 Hz. Find the change in the frequency of the horn as heard by the truck if the car passes the truck traveling in the same direc..
A marksman holds a rifle of mass MR=3.00kg loosely inhis hands, so as to let it recoil freely when fired. He fires abullet of mass MB=5.00g horizontally with a velocityrelative to the ground of VBX = 300 m/s. What is the recoil velocity of the rifle?
on october 21 2001 ian ashpole of the united kingdom achieved a record altitude of 3.35 km 11 000 ft powered by 600 toy
1. a mass-spring system oscillates on a horizontal frictionless surface with an amplitude of 3.94 cm. if the spring
an ideal gas initially at 20degc and 187 kpa has a volume of 4.60 l. it undergoes a quasi-static isothermal expansion
conducting objects can be chrome-plated by immersing them in an electrolytic bath having positive chromium ions in
q1. far in space where gravity is negligible a 450 kg rocket travelling at 77 ms fires its engines. the thrust force as
A loudspeaker of mass 21.0 {rm kg} is suspended a distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of l = 3.90 {rm m}.
The solar panels on the roof of a house measure 4.0 m by 5.2 m. Assume they convert 12% of the incident EM wave's energy to electrical energy. What average power do the panels supply when the incident intensity is 1.0 kW/m2 and the panels are perpe..
A 0.400 glider is moving to the right on a frictionless, horizontal air track with a speed of 0.750 when it makes a head-on collision with a stationary 0.150 glider. Find the final kinetic energy of second glider
A spring has a spring stiffness constant , k, of 440 N/m. How much must the spring be stretched to store 25 J of potential energy. Please tell me the formula and how you arrived at your answer.
Two point objects both having mass M are placed at positions (0,yM0) and (0,-yM0) in the 2D Cartesian coordinate system and cannot move. Find the total potential energy of the system
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