Number of results: 6
At what rate must the cylindrical spaceship of Fig. 5-30 rotate (see Question 12 of the textbook), if occupants are to experience simulated gravity of g/6? Assume the spaceship's diameter is 44 m, and give your answer as the time needed for one revolution. I will be happy to ...
October 9, 2006 by Haley
PHYSICSSSSSS please help
An 60 kg skier is sliding down a ski slope at a constant velocity. The slope makes an angle of 13° above the horizontal direction. (a) Ignoring any air resistance, what is the force of kinetic friction acting on the skier? in N (b) What is the coefficient of kinetic friction ...
February 13, 2012 by Anonymous
PHYSICSSSSSS help please
A train engine pulls out of a station along a straight horizontal track with five identical freight cars behind it, each of which weighs 88.0 kN. The train reaches a speed of 13.0 m/s within 6.50 min of starting out. Assuming the engine pulls with a constant force during this ...
February 12, 2012 by Anonymous
A blue ball is thrown upward with an initial speed of 20.6 m/s, from a height of 0.8 meters above the ground. 2.5 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 8.2 m/s from a height of 23.7 meters above the ground. The force of ...
September 15, 2011 by aa
In a cargo plane, the center of gravity must be between the front and rear landing gears in order to maintain a torque equilibrium. The front landing gears help counteract the torque provided by the rear landing gears in this case. A jet transport has a weight of 1.00 106 N ...
March 1, 2011 by hy
A block with mass m = 14 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4545 N/m after being compressed a distance x1 = 0.515 m from the spring’s unstretched length. The floor is frictionless except for a rough patch a distance d = 2.8...
October 8, 2011 by aaa