Will a homemade telephone made of two cans and a string work better with a tightly-woven string or a loosely-woven string? a) a tightly woven string because it will not come apart as easily b) a loosely woven string because the sound waves have more room to move c) a tightly woven string because sound waves travel best through dense materials d) a loosely woven string because sound waves travel best through less dense materials

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.

Stephanie lives in california, and her cousin thomas lives in france. which coordinate system would be most useful if the two wanted to observe the same meteor shower and discuss their observations over online chat as they're making them? a. horizontal b. equatorial c. azimuth-altitude d. celestial or azimuth-altitude

Acar going 30 m/s to 70 m/s in 10 seconds calculate the acceleration of the car