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Two tiny conducting spheres are identical and carry charges of -23.9C and +40.6C. They are separated by a distance of 3.63 cm. (a) what is the magnitude of the force that each sphere experiences? (b) The spheres are brought into contact and then separated to a distance of 3.63 cm. Decide the magnitude of the force that each sphere now experiences.
One hundred turns of insulated copper wire are wrapped around an iron core of cross-sectional area 0.100 m2. The circuit is completed by connecting the coil to a 10-ohms resistor. As the magnetic field along the coil axis changes from 1.00 T to 4...
In an electron diffraction experiment, consider a screen with asingle vertical slit of finite width d in the x-direction,"illuminated" from behind by a plane monochromatic electron wave ofwavelength λ with the wave fronts parallel to the plane of ..
A curve is banked at an angle of 30 degrees with respect to the horizontal. what is the ideal speed for a motorist to take the curve when it is covered by glare ice
A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a g and air resistance is negligible, How fast was it moving just after being hit
An inclined plane of angle ? = 20.0° has a spring of force constant k = 495 N/m fastened securely at the bottom so that the spring is parallel to the surface as shown in the figure below. A block of mass m = 2.39 kg is placed on the plane at a dis..
A 45.5-g golf ball is driven from the tee with an initial speed of 47.3 m/s and rises to a height of 30.4 m. evaluate the kinetic energy of the ball at its highest point
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, Find the speed of the wagon
a 90.0 kg box is pushed by a horizontal force f at constant speed up a frictionless ramp which makes an angle of 38.0
An object with a mass of 500g is attached to a spring. The system is moving in simple harmonic motion with an amplitude of 0.020m, What is the frequency of the system
A 1200-turn coil of wire that is 2.0cm in diameter is in a magnetic field that drops from 0.14T to 0 T in 11ms. What is the emf of the coil
When a train's velocity is 12{rm{ m/s}} eastward, raindrops that are falling vertically with respect to the earth make traces that are inclined 30.0 ^circ to vertical on windows of the train.
a fugitive tries to hop on a freight train traveling at a constant speed of 5.0 ms. just as an empty box car passes him
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