Physics, 09.10.2019 23:00, datboulreese4048
Aroller coaster has a "hump" and a "loop" for riders to enjoy (see picture). the top of the hump has a radius of curvature of 12 m and the loop has a radius of curvature of 15 m. (a) when going over the hump, the coaster is traveling with a speed of 9.0 m/s. a 100-kg rider is traveling on the coaster. what is the normal force of the rider’s seat on the rider when he is at the peak of the hump? compare this with the normal force he would experience when the coaster is at rest. (b) what is the minimum speed the coaster must have at the top of the loop in order for the rider to remain in contact with his seat? is this speed dependent on the mass of the rider? 8.
Answers: 1
Physics, 22.06.2019 15:20, avree4722
Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.
Answers: 3
Physics, 22.06.2019 16:50, JeroMii
Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
Answers: 2
Aroller coaster has a "hump" and a "loop" for riders to enjoy (see picture). the top of the hump has...
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