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You are an astronaut in the space shuttle pursuing a satellitein need of repair. You are in a circular orbit of the same radiusas the satellite (370 km above theEarth), but 20 km behind it.
(a) How long will it take to overtake the satellite if youreduce your orbital radius by 1.0 km?
hr
(b) By how much must you reduce your orbital radius to catch up in7.0 hours?
m
Children in a tree house lift a small dog in a basket 4.80 up to their house. If it takes 221 J of work to do this, what is the combined mass of the dog and basket
stationary L = 3.02-m board of mass 4.56 kg is hinged at one end. A force F is applied vertically at the other end, and the board makes a ? = 31.4° angle with the horizontal. Calculate the force exerted by the hinge
The coefficient of kinetic friction between dresser and the floor is and is the acceleration because of gravity. The floor exerts upward normal forces with magnitudes and where the dresser's legs rest on the floor. Note that this is a 2-dimensiona..
a sound wave traveling in 26 degrees C air has a pressure amplitude of 0.500 Pa. (assume that the density of air is 1.29 kg/m^3). What is the intensity of the wave
The 2.0 cm diameter coil shown below has 25 turns and has a current flowing through it of 5.00 A. What is the average change in flux (25 turns) going from 30 to 90 degrees
How much power does a refrigerator use if connected to a 120 volt line and is said to draw as much power as light bulb that uses 1.67 A when connected to the same voltage
Air at atmospheric pressure (101 KPa) is to be compressed to one-sixth of its original volume. At what pressure will the air be if its temperature is unchanged?
A bead of mass m slides without friction down a track and around a loop-the-loop of radius R. The initial height of the track is h = 3.5R. What is the speed of the mass after going around the loop
A particle with a mass of 4.10 × 10-20 kg is oscillating with simple harmonic motion with a period of 2.9 × 10-5 s and a maximum speed of 2.3 × 103 m/s.
A particular heat engine has a useful power output of 4.80 kW and an efficiency of 25.0%. Find the energy taken in during each cycle
When UV light of wavelength 260nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.20eV. What is the work function of the metal
An electron of mass, m, collides with an atom of mass M. The atom is initially at rest, What is the minimum speed of the electron in order to excite the atom
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