P6: An object of mass m sits on a spring of constant k in an elevator that is accelerating upwards with acceleration a. a) In terms of g, m, k, and a, how much is the spring compressed? b) If the compression is 2.5 times larger than it is when the mass sits in a still elevator, what is the acceleration? Please be sure to answer each of the questions in terms of the given variables and g.

(a). The spring compressed is .

(b). The acceleration is 1.5 g.

Explanation:

Given that,

Acceleration = a

mass = m

spring constant = k

(a). We need to calculate the spring compressed

Using balance equation

....(I)

The spring compressed is .

(b). If the compression is 2.5 times larger than it is when the mass sits in a still elevator,

The compression is given by

Here, acceleration is zero

So,

We need to calculate the acceleration

Put the value of x in equation (I)

Hence, (a). The spring compressed is .

(b). The acceleration is 1.5 g.

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.