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In a large centrifuge used for training pilots and astronauts, asmall chamber is fixed at the end of a rigid arm that rotatesin a horizontal circle. A trainee riding in the chamber of acentrifuge rotating with a constant angular speed of 2.5 rad/sexperiences a centripetal acceleration of 3.2 times the acceleration due to gravity. In a second training exercise, the centrifuge speeds up from rest with a constant angular acceleration. When the centrifuge reaches an angular speed of 2.5rad/s, the trainee experiences a total acceleration equal to 4.8times the acceleration due to gravity.a.) How long is the arm of the centrifuge?b.) What is the angular acceleration of the centrifuge in the second training exercise?
An echelette or blazed grating has 450 lines per centimeter and is ruled for the concentration of infrared light of wavelength 5.0 µm in the second order, find the angle of the ruled faces to the plane of the grating
A newly discovered planet has a mean radius of 1350 km. A vehicle on the planet\'s surface is moving in the same direction as the planet\'s rotation, what is the period of the planet\'s rotation
Unpolarized light of initial intensity 26W/m^2 is passed through three polarizing filters polarizing filters. compute the intensity of the light after passing through all three polarizing filters
Two protons are placed at a = 4.69 cm above and below the x axis at x = 0 as shown in the figure. An electron is placed along the x axis a distance b = 10.1 cm from the origin. find the magnitude of the electrostatic force on the electron
A uniform ladder of mass M and length L stands on rough horizontal ground and leans against a smooth vertical wall with which it makes an angle ?. A man of mass m stands on the ladder a distance x from the bottom. Obtain expressions for the normal..
A positron is a particle of "antimatter"; it has the same mass as an electron (9e-31 kg), but its charge is positive instead of negative. At research facilities such as Cornell Electron Positron Storage Ring at Cornell University in New York, high..
While moving down the track at 10.0 m/s, you uniformly accelerate to 32.0 m/s in 10 s. Illustrate what is the average net force that you have applied to the car during the 10 s interval?
In an experiment the speed of sound in air, a student a measures a column of air in a resonance tube. determine the ambient temperature in the room in degrees C
A 22.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rpm. What centripetal force must she exert to stay on if she is 1.25 m from its center
You drive on Interstate 10 from San Antonio to Houston, half the time at 63 km/h and the other half at 86 km/h. What is your average speed for the entire trip
A ray of light is incident on the surface of a block of clear ice at an angle of 32.0° with the normal. Find the angle between the reflected and refracted light
a vertical tube is closed at one end and open to air at the other end. the air pressure is 1.01 times 105 pa. the tube
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