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A NASA mission to update the electronics on a circular orbiting space station has required the work of four astronauts. The astronauts have been docked to the space station which is orbiting the Earth with a speed v = 1.10 km/s, for 8 days. The next mission is to travel away from Earth to Mars. In order to do this, the astronauts' shuttle must escape the gravity of Earth by firing it's thrusters. What speed, vesc, must the astronauts' shuttle attain to escape the Earth? The radius of the Earth is RE = 6.37 x 106 m, the mass of the Earth ME = 5.98 x 1024 kg, the acceleration due to gravity on the surface of the Earth g = 9.81 m/s2 and the gravitational constant G = 6.67 x 10-11 N·m2/kg2.
An alien race has evolved such that their eyes work exactly like ours except their eyes can be modeled with a biconcave lens. WHen they come to visit us, what kind of glasses would you prescribe
When a person inhales, air moves down the bronchus (windpipe) at 17 cm/s. The average flow speed of the air doubles through a constriction in the bronchus. Assuming incompressible flow, determine the pressure drop in the constriction.
An ac series circuit has an impedance of 196 ? , and the phase angle between the current and the voltage of the generator is ? = -72°. The circuit contains a resistor and either a capacitor or an inductor
A bicycle with 0.80m -diameter tires is coasting on a level road at 5.6m/s. A small blue dot has been painted on the tread of the rear tire. What is the angular speed of the tires
A submarine sends a sonar signal, which returns from another ship 2.250 s later. How far away is the other ship if the speed of sound in seawater is 1,530.0 m/s
A proton moves perpendicular to a uniform magnetic field at a speed of 1.10 107 m/s, Determine the magnitude and direction of the field
an inclinced plane mass is .5kg inclinced plane at 30 degrees is 6.40m long, a book has kinetic friction with the incline of .2, find out the speed at the bottom of the incline
Torque can be calculated by multiplying the force (N) applied at 90 degrees to the lever arm at a distance (m) from the pivot point (point of rotation), what is the torque on the lever
a man with mass m1 61 kg stands at the left end of a uniform boat with mass m2 168 kg and a length l 2.6 m. let the
Could you help with this one, The Tesla Roadster, a production electric car, has a 375 battery system that can provide a power of 200. what is the current supplied by the batteries
Three positive charges are fixed in place. Q 1= +4.0 nC and is located at (0,2), Q2= +1.0 nC and is located at (0,-1), What is the electric potential at the origin
When driving west toward the Rocky Mountains, you see a peak 2.8 above the horizon. Your GPS gives your current elevation as 1500, Find the peak's elevation
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