A metal bar magnet produces a magnetic field in space surrounding it. The point magnetic field is due to

a. magnetic monopoles embedded in the metal

b. a hidden voltage source in the metal

c. the motion of charged particles in the metal

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

22. the effect of threshold braking is to a cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.

The pressure increases by 1.0 x 104 n/m^2 for every meter of depth beneath the surface of the ocean. at what depth does the volume of a pyrex (bulk modulus 2.6 x 1010n/m^2) glass cube, 9.8 x 10^−2m on an edge at the ocean's surface, decrease by 7.5 x 10−10m^3? explain the formula beyond this point: p=1.0x10^4, b=2.6x10^10, l=9.8x10^−2, delta v=7.5x10^−10. at some point l needs to be cubed. why p is divided by delta v?