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The motion of low orbit satellites can be approximated by saving that the needed centripetal acceleration for the circular orbit is equal to g= 9.8m/sec2 (the gravitational acceleration as observed on the surface of Earth). Using this assumption and neglecting any problem due to the atmosphere.
What is the orbital speed of the satellite?
Setting the radius of the orbit equal to the radius of the Earth Rt= 6400km. How long does it take for one orbit?
What is the weight of the astronauts on board of the satellite? Explain why?
What is maximum force a 60 Tesla magnetic field can exert on an electron moving 4000m/s? What is the radius of the circular motion
A satellite in geosynchronous orbit orbits the earth in 24 hours. find the radial velocity and the angular velocity
The attractive electrostatic force between the point charges 7.14×10?6 and has a magnitude of 0.825, find the sign and magnitude of the charge Q
Light of wavelength 0.514 µm (in air) enters the water in a swimming pool. The speed of light in water is 0.710 times the speed in air. What is the wavelength of the light in water
A 2kg block situated on A rough incline is connected to a spring of negligible mass havingg a spring constant of 100N/m.The pulley is frictionless.The block is released from rest when the spring is unstrched .The block moves 29cm down the incl..
Consider a spider walking from the top of a (stationary) beach ball. (Let that angular position = 0O.), At what angle does this slipping begin
A neutron decays into a proton, an electron, and an anti-neutrino. Why can we state that the charge of the anti-neutrino must be zero?
A window air conditioner consumes 1500 W of electric power and has COP = 3.7. If it runs continuously for 18h , how much heat gets removed from the house? Express your answer to two significant figures and include the appropriate units.
A diver of mass 60kg, on entering the water with an initial velocity of 14.87ms-1, experienced a force of resistance due to the opposing motion of magnitude of 180v Newtons, Calculate the maximum depth, in metres the diver will submerge
A covex lens of focal length 10 cm placed 40 cm in front of aconcave lens of focal length 25 cm.A small object is placed 20 cmin front of the convex lens calculate the location of the finalimage relative to the second lens. Include a ray diagram
A hollow, thin-walled sphere of mass 12.0kg and diameter 47.0cm is rotating about an axle through its center. find the angular momentum of the sphere
A cube has sides of length = 0.320 . It is placed with one corner at the origin. The electric field is not uniform but is given by -4.95 2.17 .Find out the electric flux through each of the six cube faces.
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