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A steep cliff west of Lydia's home reflects a 1460-kHz radio signal from a station that is 69.9 km due east of her home. If there is destructive interference, what is the minimum distance of the cliff from her home. Assume there is a 180° phase shift when the wave reflects from the cliff.
Suppose a capacitor in a video camera has a capacitance of 26.0 ?F, How much potential energy is stored in the capacitor
Four wires meet at a junction. In two of the wires currents I1 = 1.51 A and I2 = 2.99 A enter the junction. Find the current in the fourth wire
The first sled is 30kg, connected with rope B to the second sled of mass 20 kg, connected with rope A to the first sled of mass 10 kg, which is being pulled by a rope of 137 N. Illustrate What is the tension in ropes A and B.
You perform a double-slit experiment in order to measure the wavelength of the new laser that you received for your birthday. What is your laser's wavelength expressed in nanometers
Write down the expression for net torque
A cruise ship sails 150 km east, then 250 km northwest, and then 100 km at 30° east of south, Find the magnitude and the direction of the last leg of the journey
The Fermi energy of silver at 300 K is 5.48 eV. What is the average energy of a conduction electron in silver at 300 K
A uniform drawbridge must be held at a 37 angle above the horizontal to allow ships to pass underneath. What is the angular speed of the drawbridge
An electric power station is producing 1.60 × 103 W of power that is to be sent to a small town located 13 km away, Find the power lost in heating the wires
A projectile is launched at 64 degrees at 63.7 m/s from the top of a hill. How far down the hill does the projectile hit
Use the principle of superposition and the boundary conditions for a stretched string with a fixed or free end to explain the form of reflected pulses. Explain and use the mathematical expression for a standing wave
Compute the momentum of the bullet
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