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Suppose one pendulum consists of a 1-meter string with a bob that is an aluminum sphere 2 inches in diameter. A second pendulum consists of a 1-meter string with a bob that is a brass sphere 2 inches in diameter. The two pedulums are set into oscillation at the same time and with the same amplitude A. After 5 minutes of undisturbed oscillation, the aluminum pendulum is oscillating with one half of its initial amplitude. What is the oscillation amplitude of the brass pendulum? Assume that the friction is due to the relative velocity of bob and air and that the instantaneous rate of energy loss is proportional to the square of the velocity of the bob.
The classical picture of the hydrogen atom has a single electron in orbit a distance 0.0529nm from the proton. Calculate the electric potential associated with the proton's electric field at this distance.
The 20-cm-long wrench in the figure swings on its hook with a period of 0.74s, What is the wrench's moment of inertia about the hook
Consider an electron in a cyclotron motion with the velocity v = 10.000 × 105 m/s perpendicular to the magnetic field of strength B = 1.00 × 10-4 T. Find the ratio of the field created during the cyclotron motion to the external field.
What is the minimum speed the electron could have after the collision? The allowed energies of a simple atom are 0.0 eV, 5.5eV and 9.0eV
The mast of a sailboat is supported at the bow and stern by stainless steel wires, the forestay and backstay, Find the tension in the backstay and the force that the mast exerts on the deck
An airplane flies from Chicago to New Orleans (a distance of 1500 km) in the morning, then immediately returns to Chicago. What is the average speed for the entire trip
A daredevil on a motorcycle leaves the end of a ramp with a speed of 36.0 m/s, what is the maximum height that he reaches
A student wants to find out the speed of a high-speed projectile, but doesn't have a high-speed measuring device. what is the speed of the projectile just before the collision
Consider a grounded conducting sphere of radius "a" in the presence of a point charge "Q" a distance "D" away from the center of the sphere. How do you show the electric field E is everywhere normal of the sphere, and how do you find the induced char..
A hollow, conducting sphere with an outer radius of 0.246m and an inner radius of 0.195m has a uniform surface charge density of +6.35×10?6C/m^2. find the strength of the electric field just outside the sphere
An electron is trapped within a sphere whose diameter is 5.90 × 10-15 m, What is the minimum uncertainty in the electron's momentum
a an electron has an initial velocity of 2.00 106 ms in a uniform 8.00 x 105 nc strength electric field. the field
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