Physics, 20.11.2020 07:50, hsjsjsjdjjd
You have a summer job at a laboratory associated with the oversight of the Global Positioning System (GPS). The space-based part of the system consists of about three dozen satellites. Just before the summer, a new GPS satellite was launched but, due to a rocket-engine failure, it did not achieve its proper near-circular orbit around the Earth. It now moves in an elliptical orbit with its apogee at 2.65 β 104 km, which is the radius of the circular orbit of a correctly positioned GPS satellite, and its perigee at 6.70 β 103 km. Your boss wonders if the satellite can still be used in some way. Normal GPS satellites appear over the same point on the Earth about twice a day. Your boss asks you to calculate (a) how many times a day the satellite reaches its perigee and to determine (b) if the perigee point is regularly over a fixed point on the Earth's surface.
Answers: 3
Physics, 21.06.2019 21:50, jferdi2005
When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?
Answers: 1
Physics, 21.06.2019 22:30, celibe9391
What is the earliest point in the universe that we can observe? why canβt we see back further than this?
Answers: 2
Physics, 22.06.2019 04:30, cicimarie2018
Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?
Answers: 1
You have a summer job at a laboratory associated with the oversight of the Global Positioning System...
Mathematics, 12.03.2021 18:50
History, 12.03.2021 18:50
Geography, 12.03.2021 18:50
Mathematics, 12.03.2021 18:50
English, 12.03.2021 18:50
Biology, 12.03.2021 18:50