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A standing wave has been created on a string of length 1.5m. The frequency of the wave is 25Hz. The ends of the string are nodal points and there are 3 antinodes. What is the wavelength of the standing wave?
Two identical, small insulating balls are suspended by separate 0.31-m threads that are attached to a common point on the ceiling. determine the tension in the threads
q1. as part of a safety investigation two 1300kg cars traveling at 18ms are crashed into different barriers. find the
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, Find the net downward force on the tank's flat bottom
Oasis B is located 25 km east from oasis A. A camel starts from oasis A and travels 19.6 km in the direction 14.7 degrees south of east. Then it walks 8 km directly to the north. How far is the camel from oasis B?
A sound wave with intensity 20 mW/m2 interferes destructively with a sound wave that has an intensity of 4 mW/m2. What is the intensity of the superposition of the two
A transformer with 1760 turns on the primary and 347 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output. What is the current amplitude in the primary coil
A cart for hauling ore out of a gold mine has a mass of 425 kg, including its load. Calculate the work done on the cart during the process by friction
A light bulb emits light uniformly in all directions. The average emitted power is 150.0 W. At a distance of 4.50 m from the bulb, find out (a) the average intensity of the light, (b) the rms value of the electric field, and (c) the peak value of t..
A skier leaves the end of a horizontal ski jump at 22. m/s and falls 3.20 m before landing. how far horizontally does the skier travel in the air before landing
Steam is expanded from 12.5 MPa and 900 degrees Celsius to 0.30 MPa, 400 degrees Celsius in an adiabatic turbine. Determine the isentropic efficiency of this turbine
A 240g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.150 s. If the total energy of the system is 3J.
An electron, starting from rest, accelerates through a potential difference of 413 V. What is the final de Broglie wavelength of the electron, assuming that its final speed is much less than the speed of light
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