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a space station is a hollow cylinder of radius of 440m, that rotates to stimulate gravity by its centripetal acceleration. The astronants live at the radius 440m from the center, with their heads pointing inward and thier feet outward.
A. what speed should the rotation give the astronants so they feel like they are in artificial gravity of strength "2.5g" (2.5 X gravity on earth)?
B. find the period of the rotation in seconds.
Inside an insulated container, a 250-g ice cube at 0 °C is added to 200 g of water at 18 °C. What is the remaining ice mass
A diffraction grating produces a first-order maximum at an angle of 25.0 degree. What is the angle of the second-order maximum
20 g of helium are placed in a cylinder with a movable piston. What is the maximum temperature reached during the compression
A world-class sprinter accelerates to his maximum speed in 4.0s. He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire race
What are the x- and y-components of the electric field at (x, y) = (0 m, +4 m)? (a)Two charges are placed on the x-axis: one is placed at x = 3 m and the other is at x = -3 m.
A long rod, insulated to prevent heat loss along its sides, is in perfect thermal contact with boiling water (at atmospheric pressure) at one end and with an ice-water mixture at the other.
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 30 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the back..
Draw the free-body diagram of the system and find the value of the force F acting on the piston C.
An unknown nucleus has twice the volume of a nucleus with 62 nucleons. What is the atomic mass number of the unknown nucleus
A skier (m=55.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. If h = 6.90 m and D = 10.4 m, determine H.
The Doppler effect can be used to measure flow rates in blood. A sound wave is transmitted into a vein or an artery, What is the expected frequency shift
A typical red blood cell subtends an angle of only 1.91E-5 rad while viewed at a person's near-point distance of 25cm. Assume a red blood cell is examined with a compound microscope in which the objective and eyepiece are separated by a distance o..
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