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Assume that when you ride on your 7.60-kilogram bicycle the weight of you and the bicycle is supported equally by the two tires. If the gauge pressure in the tires is 78.5 lb/in2 and the area of contact between the road and each tire is 7.13 cm2, compute what is your weight?
The drawing shows a rectangular block of glass (n = 1.52) surrounded by liquid carbon disulfide (n = 1.63). At what angle of refraction does the ray leave the glass at point B
A body starts from rest, moves in a straight line with constant acceleration, and covers a distance of 19.6 meters in 4 sec: what was the velocity in half the total time
600g model rocket is on a cart that is rolling to the right at a speed of 4.5m/s. At what horizontal distance left of the loop should you launch
A 12.7-kg block initially slides at 13.1 m/s on a flat rough surface and eventually stops. what is the entropy change of the system
A rifle is aimed horizontally at a target 30 m away. The bullet hits the target 2.10 cm below the aiming point. What is the bullet's time of flight
a spot of paint on a bicycle tire moves in a circular path of radius 0.33 m.when the spot has traveled a linear
What is the maximum potential that the dome of a van de Graaf generator can be safely charged to if its radius is 20cm and the breakdown electric field in air is 3.0MV/m
A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance d = 6.80 cm from its unstretched position when the system is in equilibrium, determine the mass of the object
The coefficient of static friction between the tires of a car and a horizontal road is 0.450. What is the minimum distance in which the car can stop
In a certain automobile engine, 17% of the total energy released in burning gasoline ends up as mechanical work. What is the engine's mechanical power output if its heat output is 78 kW
a horizontal spring-mass system has low friction spring stiffness 185 nm and mass 0.3 kg. the system is released with
A disc-shaped grindstone of mass 3.0 kg and radius 8.0 cm is spinning at 600 rev/min. What was the stone's initial kinetic energy
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