Consider a spherical planet of uniform density rho. the distance from the planet's center to its surface (i. e., the planet's radius) is rp. an object is located a distance r from the center of the planet, where r
find an expression for the magnitude of the acceleration due to gravity, g(r), inside the planet.
express the acceleration due to gravity in terms of rho, r, π, and g, the universal gravitational constant.
rewrite your result for g(r) in terms of gp, the gravitational acceleration at the surface of the planet, times a function of r.
express your answer in terms of gp, r, and rp.
if an astronaut takes an object to the moon, the object's weight will change but its mass will be the same. (c)
in a normal, sane world, a paycheck normally is.
correct answers are 1.an increase or decrease in pressure 2.an increase or decrease in energy
all existing matter can undergo phase change it means they may transform from one state to another. phase change of a matter may occur due to change in energy and change in pressures.
for example there is an ice cube which is a solid and if we want to change it phase into liquid water for that purpose we have to supply some energy to ice cube it means we have to give some heat to ice cube. after supplying heat energy to the ice it will turn into water it means there is phase change from solid to liquid due to supplying the heat. similarly we can change the liquid water into solid ice cube by taking heat energy(reducing temperature) from the liquid water .
in some cases the matter doesn't want to undergo phase transformation. for example, oxygen will solidify at -361.8 degrees fahrenheit at standard pressure.but , it can change to solid state at warmer temperatures when the pressure is increased.