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A string of length 4 m consists of two sections of equal length. The left has mass per unit length 0.00022 kg/m, while the right has a mass per unit length 0.00066 kg/m. Tension in the string is 790.5N/m. Find the speed at which transverse wave pulses travel in the left section. Find the speed at which transverse wavepulses travel in the right section. Find the time required for a pulse to travel from one end of the string to the other.
On a planet in a solar system far from ours, you release a rock from rest at a height of 16 m above the surface of the planet and you find that it takes the rock 3 seconds to reach the surface. What is the radius of the planet
The minimum take off speed for an airplace is 75 m/s. What minimum acceleration is required if the plane must leave a runway flank of 1050 meters
suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of 3.10 pc.a what percentage of the
a winch at point b is used to slide a box up a chute cd in a warehouse.the box wieghs 530lb and fits loosely against
a particle undergoes two displacements. the first has a magnitude of 128 cm and makes an angle of 113 degrees with the
A 52.6-kg skateboarder starts out with a speed of 2.16 m/s. He does 89.2 J of work on himself by pushing with his feet against the ground. Calculate the change (PEf - PE0) in the gravitational potential energy
A telescope is designed using an objective lens f focal length f(obj)=2m and an eyepiece of focal length f(eye)=8cm. Find the location and size of the image of Jupiter formed by the objective lens
A massless spring is hanging vertically and unloaded, from the ceiling. A mass is attached to the bottom end and released. How close to its final resting position is the mass after 1 second, given that it finally comes to rest 0.5 meters below the po..
Aingly-ionized lithium has a nucleus of charge +3e and two electrons. Use the variational principle to estimate the ground-state energy. Now consider a nucleus of charge Ze with two electrons. Use the variational principle to estimate the ground-st..
At each corner of a cube of 25.41 cm on a side there is a point charge Q = 8.360e-6C. Take V to be zero at infinity, what is the potential at the center of the cube
a spark occurs at the tip of a metal needle if the electric field strength exceeds 5.00times106 nc the field strength
Using a 695-nm wavelength laser, you form the diffraction pattern of a 0.103-mm wide slit on a screen. How far is the screen located from the slit
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