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A 100kg astronaut is fixing a solar panel when his tether breaks and leaves the astronaut drifting 60m from the space station. The astronaut gives a 20N shove over 1.1s to the 8kg tool kit he was carrying (not included in the 120kg mentioned above) in the opposite direction of the space station. How long will it take him to reach the space station? (first calculate the astronaut's acceleration)
The universal-NOT gate in quantum computing is an operation which maps every point on the Bloch sphere to its antipodal point (see Buzek et al, Phys. Rev. A 60, R2626-R2629). In general, a single qubit quantum state, |??=α|0?+β|1? will be mapped t..
A hydrogen atom is in the inital state ni = n, where n > 1. Find the frequency of the electron's orbital motion
consider a 2210 lb automobile clocked by law enforcement radar at a speed of 85.5 mph. if the position of the car is
A rock climber stands on top of a 60 m high cliff hanger a pool of water. He throws two stones vertically downward 1.0 s apart and observes that they cause a single splash. What was the initial speed of the second stone
Normal 0 false false false EN-IN X-NONE X-NONE A golfer takes two putts to ob..
A singly ionized helium atom (He+) has only one electron in orbit about the nucleus. What is the radius of the ion
Bob walks 340m south, then jogs 460m southwest, then walks 340m in a direction 35 degrees east of north. Find the direction of the displacement that will return Bob to his starting point by the most direct route
a rotating merry-go-round makes one complete revolution in 4.0s.a what is the linear speed of a child seated 1.2m from
A woman measures the angle of elevation of a mountain top as 12 degrees. After walking one km closer to the mountain on level ground, she finds the angle to be 14 degrees. Select variable names for the two pictures.
In the lab you place a beaker that is half full of water (density ρw) on a scale. You now use a light string to suspend a piece of metal of volume V in the water. The metal is completely submerged, and none of the water spills out of the beake..
A rod of mass m and radius R rests on two parallel rails that are a distance d apart have a length L. what is the speed of the rod as it leaves the rails
The alveoli have an average radius of 0.117 mm and are approximately spherical. If the pressure in the sacs is 5.00 105 Pa, how many air molecules are in an alveolus
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