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1- Our balance is maintained, at least in part, by the endolymph fluid in the inner ear. Spinning displaces this fluid, causing dizziness. Suppose a dancer (or skater) is spinning at a very fast 2.6 revolutions per second about a vertical axis through the center of his head. Although the distance varies from person to person, the inner ear is approximately 7.0 cm from the axis of spin. part A What is the radial acceleration (in m/s^2 ) of the endolymph fluid? part B What is the radial acceleration (in g's) of the endolymph fluid? 2-A model of a helicopter rotor has four blades, each of length 4.00m from the central shaft to the blade tip. The model is rotated in a wind tunnel at a rotational speed of 540rev/min.
A- What is the linear speed of the blade tip?
B- What is the radial acceleration of the blade tip expressed as a multiple of the acceleration of gravity, g?
A long, straight wire carrying a current of 3.00 A is placed along the axis of a cylinder of radius 0.500 m and a length of 2.00 m
Three balls are constrained to move on the circumference of a circle of radius R. find the characteristic frequencies of the system
Radiation of intensity 1.00 kW/m2 is incident on an area perpendicular to the incoming light. What is the resulting power per unit area now reaching the surface
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 22 m/s at an angle 63 degrees, What is the horizontal and vertical component of the balls
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. The wooden block has a mass of 2kg and is initially at rest.
A highway curve with radius 1000{\rm ft} is to be banked so that a car traveling 48.0{\rm mph} will not skid sideways even in the absence of friction
A 5,000 kg satellite is orbiting the Earth in a circular path. The height of the satellite above the surface of the Earth is 800km. The velocity of the satellite is (Me = 5.98 x 10^24 kg, Re = 6.37 x 10^6 m, G = 6.67 x 10-11 N • m2/kg2)
What is the lift (in newtons) because of Bernoulli's principle on a wing of area 78m^2 if the air passes over the top and bottom surfaces at speeds of 260m/s and 150 m/s, respectively.
Neutron stars consist only of neutrons and have unbelievably high densities. Find the density of such a star
Object A has a position as a function of time given by A(t) = (3.00 m/s)t + (1.00 m/s2)t2, What is the distance between object A and object B at time t = 4s?
A swimmer, capable of swimming at a speed of 1.99 m/s in still water, How far downstream will the swimmer be upon reaching the other side of the river
A metal rod with a length of 22.0cm lies in the xy-plane and makes an angle of 37.9 degrees with the positive x-axis, What is the magnitude of the emf induced in the rod
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