Asound wave enters a new medium where sound travels faster. how does this affect the frequency and wavelength of the sound? a. the frequency increases and the wavelength decreases.. b. the frequency decreases and the wavelength increases.. c. the frequency stays the same and the wavelength increases.. d. the frequency stays the same and the wavelength decreases.. neither the frequency nor the wavelength is affected.

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.