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The masses of astronauts are monitored during long stays in orbit, such as when visiting a space station. The astronaut is strapped into a chair that is attached to the space station by springs and the period of oscillation of the chair in a friction-less track is measured. (a) The period of oscillation of the 10.0 kg chair when empty is 0.750 s. What is the effective force constant of the springs? (b) What is the mass of an astronaut who has an oscillation period of 2.00 s when in the chair? (c) The movement of the space station should be negligible. Find the maximum displacement of the 100,000 kg sace station if the astronaut's motion has an amplitude of 0.100 m.
What is the volume of the bubble when it reaches just below the surface of the lake, where temperature is 20°C.
What is the speed of projectile immediately before it hits the ground if air friction does one and a half times as much work on projectile when it is going down as it did when it was going up.
The coil is flipped so its plane is vertical to the magnetic field in 0.050 s. What is the magnitude of the average induced emf.
Express how unmet basic physiological needs of oxygen, nutrition, temperature, and humidity threaten clients' safety.
Make a drawing of this situation, and choose the best axes for x and y so that you have the least number of components.)
The coefficients of friction for plastic on wood are μs = 0.50 and μk = 0.40. How much horizontal force would you want to apply to a 4.0-lb plastic calculator to start it moving from rest.
A 12.0 m long conveyor belt, inclined at 40.0°, is used to transport bundles of newspapers from the mailroom up to the cargo bay to be loaded on to delivery trucks. Each newspaper has the mass of 1.00 kg, and there are 26 newspapers per bundle. Concl..
Presume the electron is at the midpoint between the proton.
How much charge passes through the hair dryer. Find the magnitude of the magnetic field at the center of the square.
An 88 g arrow is fired from a bow whose string exerts the average force of 110 N on the arrow over a distance of 78.00 cm. What is the speed of the arrow as it leaves the bow.
Bob Richards is production manager of Zychol Chemicals, in Houston Texas, is making his quarterly report, which is to include a productivity examine for his section.
The reflecting surfaces of two intersecting flat mirrors are at the angle of 59. A light ray strikes the horizontal mirror, reflects off horizontal mirror, impinges on the raised mirror, reflects off the raised mirror and proceeds in the right-han..
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