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A 62.7 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 11 kg oxygen tank in a direction away from the shuttle with a speed of 14.6 m/s, propelling the astronaut back to the shuttle. Assuming that the astronaut starts from rest, find the final speed of the astronaut after throwing the tank. Answer in units of m/s.
in a laboratory a wavelength of a particular hydrogen emission line balmer beta line is observed as 486.1 nm. if the
question what should be the index of refraction of a transparent sphere in order for paraxial rays from an infinitely
two identical point charges q 9.20 x 10-6 c are fixed at opposite corners of a square whose sides have a length of
A roller coaster goes 26 m along a section of track sloping 10 degrees below the horizontal, followed by a 15-m section sloping upward at 6 degrees, followed by an 18-m section of level track. Find the net displacement.
a 50.0-kg block is being pulled up a 13.0deg slope by a force of 250 n which is parallel to the slope. the coefficient
In an attempt to reduce the extraordinarily long travel times for voyaging to distant stars, some people have suggested traveling at close to the speed of light. How fast must the rocket travel relative to earth
Find the moment of inertia of the plate for an axis that lies in the plane of the plate, passes through the center of the plate, and is perpendicular to the axis in part A
my kids came up with a form of tether ball where they attached a ball to a string and let it swing around the role.
The arm in Coulomb's torsion balance was a rod with a charged ball at one end and a counterweight on the other. what is the torque exerted on the balance arm
a 330g airtrack cart on a horizontal air track is attached to a string that goes over a pulley with a moment of
Law of Gravitation- Find out an expression for the magnitude of the initial velocity that a projectile should possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-..
research and briefly identify the energy conservation measures that reduce a buildings energy use by reducing one or
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