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An earth satellite remains in orbit at a distance of 11494 km from the center of the earth. What speed would it have to maintain? The universals gravitational constant is 6.67 X 10(to negative 11th) N times M squared /kg2 and the mass of the earth is 5.98 X 10 to 24th kg. Answer in units of m/s
a force of 8n acts on an object on a frictionless horoizontal surface. the force acts in a vertical plane at an angle
Point charges of 43.0 µC and 28.0 µC are placed 0.500 m apart. At what point along the line connecting them is the electric field zero? What are the magnitude and direction of the net electric field halfway among them?
A piece of putty of mass m = 0.75 kg and velocity v = 2.5 m/s moves on a horizontal frictionless surface. What fration of the initial kinetic energy of the putty is lost in this collision
a proton is moving parallel to a uniform electric field. the electric field accelerates the proton and increases its
Water flows through a 2.7cm -diameter pipe at 2.1m/s. If the pipe narrows to 1.7cm diameter, what is the flow speed in the constriction
High jumpers usually sustain fractures in the lower third of the fibula. The world record for the high jump is held by Javier Sotomayor (Cuba) at 2.45 m (1993). what is the stress in the fibula
1- a 1.8 mw helium-neon laser beam delivers a spot of light 8 mm in diameter across a room 17 m wide. the beam radiates
A proton is placed in an electric field of intensity 700 N/C. What is magnitude and direction (towards or away from the field) of the acceleration of this proton because of this field? The charge on a proton is +1.6 x 10-19 C and the mass of a prot..
A 1.75 kg block slides on a rough, horizontal surface. The blockhits a spring with a speed of 1.86 m/s and compresses it a distanceof 12.1 cm before coming to rest. what is the force constant of the spring
The moon orbits the Earth at a distance of about 3.84 x 108 meters in a path that takes 27.3 days to complete. What is the centripetal acceleration of the moon
A mass of 5 kg rests on an incline plane which is tilted at an angle of 30 degrees (assume no friction). What is the acceleration down the incline
A daredevil on the motorcycle leaves the end of a ramp with a speed of 36.0 m/s. If his speed is 34.20 m/s while he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. In meters
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