Lead hs a density of 11.3 g/cm3 and a mass of 282.5 g . what is its volume?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?