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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?
Through a hard sneeze, your eyes might shut for 0.70s. If you are driving a car at 100 km/h during such a sneeze, how far does the car move for the duration of that time.
A child of mass m sits in a swing supported by two chains, each of length R. The tension in each chain at the lowest point is T. Find the child's speed at the lowest point
a light inelastic rope is wrapped around a cylinder passes over a pulley and is attached to one end of a spring of
question calculate the wavelength of the emitted photon when an electron drops between the n 4 and n 3 energy levels
a 15 kg hoop of radius 1 m is spinning at a rate of 4 rotations per second, What is the speed in rotations per minute
q. a motorcycle is traveling up one side of a hill and down the other side. the crest of the hill is a circular arc
A 4 kg dog stands on one end of a 20 kg boat. The dog is initially 6 m from the shore, How far has the boat moved after the dog has walked the 2m
If he struck a ball with the a speed and launch angle that would result in a maximum 120m horizontal range on Earth, how far would it go?
You are listening a soft music with a sound level of 50 dB. A subway train passes by whose sound level is 90 dB. What is total intensity level of the combined sound in dB.
In a physics laboratory experiment, a 6.00 kg box is pushed across a flat table by a horizontal force F. If the box is moving at a constant speed of 0.35m/s and thecoefficient of kinetic friction is 0.12. What is the magnitude ofF?
q1. a machinist starts with three identical square plates but cuts one corner from one of them two corners from the
markings to indicate length are placed on a steel tape in a room that is at a temperature of 22degc. measurements are
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