If the zeros of a quadratic functions are -2 and -4 which graph could represent the function

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?