A future use of space stations may be to provide hospitals for severely burned persons. It is very painful for a badly burned person on Earth to lie in bed. In a space station, the effect of gravity can be reduced or eliminated
With what period of rotation would a doughnut-shaped hospital of 200. m radius have to rotate, if persons on the outer perimeter are to experience 1/10 the gravity effect of Earth? A) 91. min
B) 1.5 min
C) 8.7 min
D) 4.6 min
E) 0.011 min
B
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Charge of uniform density 12 nC/m is distributed along the x axis from x = 2.0 m to x = 5.0 m. What is the electric potential (relative to zero at infinity) at the origin (x = 0)?
A. 91 V B. 99 V C. 82 V D. 74 V E. 140 V
Discuss why would research into transport by ship would be less emphasized than research into other modes of transportation
What will be an ideal response?
State a testable prediction of the nebular theory that has been confirmed by observations of extrasolar planets. Does this confirmation mean the theory is completely correct?
What will be an ideal response?
A planetary nebula:
a) is the ejected envelope of a low to intermediate mass star b) is what stars and planets are made of c) contains a black hole at the center d) lasts very long in the life of every star e) is a fuzzy planet