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A passenger with mass 85 {\rm kg} rides in a Ferris wheel. The seats travel in a circle of radius 35 {\rm m}. The Ferris wheel rotates at constant speed and makes one complete revolution every 25 {\rm s}.
Compute the magnitude of the net force exerted on the passenger with the seat when she is one-quarter revolution past her lowest point.
Compute the direction of the net force exerted on the passenger with the seat when she is one-quarter revolution past her lowest point.
A chimney sweep is climbing a long ladder that leans against the side of a house. find the displacement of her feet from the base when she has climbed twice as far
A certain kind of glass has an index of refraction of 1.640 for blue light of wavelength 430 nm and an index of 1.595 for red light of wavelength 680 nm. what is the angle between the two beams inside the glass
A boat takes 3.2 hours to travel 50 km down a river, then 4.6 hours to return. How fast is the river flowing
A 1.8-kg block slides down a fixed, rough curved track. What is the change in mechanical energy of the block coused by the force of friction during this descent
An unknown nucleus has twice the volume of a nucleus with 62 nucleons. What is the atomic mass number of the unknown nucleus
What is the gravitational potential energy of an interstellar cloud, with a density of 1000 H2 molecules/cm3, and radius of 10 pc
A circuit employs a silicon solar cell to detect flashes of light lasting 0.25 s. what is the minimum power of a flash of light of wavelength
The right ascension of the star Vega, brightest star in theconstellation Cygnus, is 18h 37m 12s. If Vega’s Hour Angle is +3h 10m, what is the LocalSidereal Time?
You are driving a long, thinking about a difficult physics problem, and you fail to notice the warning lights at the entrance to a drawbridge. how fast were you going when you struck the bridge
The transverse displacement (y) of a wave is given as a function of position (x in meters) and time (t in seconds) by the expression to the right. Determine the wavelength, frequency, period, and phase constant of this waveform.
We wish to coat a flat slab of glass (n = 1.50) with a transparent material (n = 1.25) and illuminate with light of wavelength 600 nm (in vacuum). For what minimum thickness of the coating will the light be (a) reflected back to the observer and (b) ..
A capacitor of capacitance C = 6 ?F is connected in series with a resistor R = 5 M? to a battery of emf What is the value of the current in the circuit when the capacitor has reached 20% of its maximum charge?
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