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In the hydrogen atom the radius of orbit B is 16 times greater than the radius of orbit A. The total energy of the electron in orbit A is -3.40 eV. What is the total energy of the electron in orbit B?
The spheres are brought into contact and then separated to a distance of 2.40 cm. Determine the magnitude of the force that each sphere now experiences, and state whether the force is attractive or repulsive.
A camera has a lens with a focal length of 26.9 cm. how far from the film should the lens be placed
A 225 kg projectile, fired with a speed of 109 m/s at a 66.0 angle, breaks into three pieces of equal mass at the highest point of its arc (where its velocity is horizontal). Determine the energy released in the explosion
A particle with charge ?2 µC is located on the x-axis at the point 4 cm, What is the magnitude of the total electrostatic force on a third particle with a charge of -2 µC placed on the x-axis at -2 cm
In a Young's double slits experiments. The interference patterns are shown on the screen. Find the angle of the order of the destructive fringe
A skier is gliding along at 3.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10° incline. His speed at the bottom is 15 m/s. How long does it take him to reach the bottom
a robot unloads a completed component from a machine and places it on a gravity conveyor. the conveyor accelerates from
A muscle-tendon unit is composed of a tendon with a stiffness of 6640N/m, a muscle with a stiffness of 9070N/m, What is the stiffness of the muscle-tendon unit
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +10q. Sphere B carries a charge of -7q. Sphere C carries no net charge. Spheres A and B are touched together and then separated.
A solid ball of mass 0.25 kg and radius 0.1 m rolls without slipping 4 m down an incline that makes an angle of 25 degrees with a horizontal. Find the angular acceleration of the ball
An object is held up by two ropes. rope 1 makes an angle of 65 degrees above horizontal and the tension in it is T1 = 26N. rope 2 makes an angle of 32 degrees above horizontal and the object is in equilibrium. what is the tension in rope 2 (T2) an..
A sealed vertical cylinder of radius R and height h = 0.542 m is initially filled halfway with water, and the upper half is filled with air. By what distance is the depth of the water lowered
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