Chang makes the diagram below to compare gay-lussac’s law and charles’s law.
which label belongs in the region marked x?
a) involves changes in temperature
b) has a constant volume
c) shows an inversely proportional relationship
d) does not involve pressure changes

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

What does every magnet possess? a. iron metal b.strong magnetic field c.repulsion d.north and south poles