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A sound wave with intensity 39 mW/m2 interferes constructively with a sound wave that has an intensity of 12 mW/m2. What is the intensity of the superposition of the two?
A bowling ball, which can be treated as a solid sphere with a diameter of 21.6 cm and a weight of 33 kg, The kinetic energy of the bowling ball is
If the rope starts at an angle of 30.0° with the vertical, illustrate what is Bruce's speed at the bottom of the swing?
A research balloon bound for the stratosphere is filled at sea level with 800 m3 of helium whose initial temperature is 285 K. What is the temperature of the helium
An unknown piece of material with a mass of 5.1 kg and density of 1422 kg/m^3 is suspended from a string and then completely immersed in a container of water. Determine the volume of the piece of material
A 8.50-kg block of ice, released from rest at the top of a 1.41--long frictionless ramp, slides downhill, reaching a speed of 2.71 at the bottom. What is the angle between the ramp and the horizontal
A 12.0-V battery remains connected to a parallel plate capacitor with a plate area of 0.284m2 and a plate separation of 4.14mm, What is the store energy in the capacitor
The work function for potassium is 2.24 eV. If potassium metal is illuminated with light of wavelength 300 nm
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
A radar for tracking aircraft broadcasts a 12.0GHzmicrowave beam from a 2.00m -diameter circular radar antenna, What is the diameter of the radar beam at a distance of 30.0km
A gas is allowed to expand isothermally until it reaches its final volume and its pressure is 2.97 atm. Find the heat absorbed by the gas during this process
If you had a single polarizer, how might you determine whether or not light from a room light was polarized when emitted from the bulb.
A coil with an inductance of 14.5 H and a resistance of R = 4.0 ohms is suddenly connected to a resistanceless battery with E = 184.2 V. What is the equilibrium current
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