Find the wavelength of a sound moving in air at 43.2 m/s and that has a frequency of 2.11 Hz.

a. 20.47
b. 91.152
c. 0.0488
d. 177.35

PLEASE HELP!!

Ashot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 ∘above the horizontal. the shot hits the ground 2.08 s later. you can ignore air resistance. how far did she throw the shot?

How many electrons does each element require in its valence shell to become stable?

Ahole in the ground in the shape of an inverted cone is 14 meters deep and has radius at the top of 11 meters. the cone is filled to the top with sawdust. the density of the sawdust depends upon the depth, x, following the formula ρ ( x ) = 2.5 + 1.2 e − 0.7 x kg/m3. find the total mass of sawdust in the conical hole.