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A 785 Hz sound wave travels through a gas. If the wavelength of the sound is 0.6 m, what is the speed of sound in the gas?
A piece of aluminum with a mass of 1kg and density of 2700 kg/m^3 is suspended from a string and then completely immersed in a container of water. Determine the volume of the aluminum
The big mall near Sally and Amy's city has extended their operating hours to accommodate the huge crowds expected for the After Thanksgiving Sale. How long were they in the mall
If the mass of Jupiter is 1.8 x 10^27 kg, then find the escape velocity for an object launched from the surface of Jupiter
Two stars with equal areas and emissivities have surface temperatures of 4,061 K and 6,078 K respectively
A 0.65-g particle remains stationary when placed in a uniform electric field (on earth). What is the electric field's direction
Two parallel plates, each with an area of 110, are given equal and opposite charges of magnitude 0.18. The space between the plates is filled with the dielectric material, and the electric field within the dielectric is 0.31.
An infinitely long line of charge has linear charge density 4.00 10-12 C/m. A proton (mass 1.67 10-27 kg, charge +1.60 10-19 C) is 17.0 cm from the line and moving straight toward the line at 3000m/s.
A long solenoid has 80 turns/cm and carries current i. An electron moves within the solenoid in the circle of radius 3.10 cm perpendicular to the solenoid axis. The speed of an electron is 0.0330c (c = speed of light). Find current i.
A car entering a freeway ramp accelerates from 14 m/s to 25 m/s in 10 seconds. what is the cars average acceleration during this 10 seconds.
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another, What is the speed of the second train
A horizontal desk surface measures 2.08 m x 1.73 m. If Earth's magnetic field has magnitude 0.495 mT and is directed 64.8° below horizontal, what is the magnetic flux through the desk surface.
A high energy photon is scattered at an angle of ?=180.0° from an electron that is initially at rest. Find the energy of the incident X-ray photon
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