Molecular Physics | Thermodynamics Answers

a steel ball bearing is 4cm at 20c.a bronze plate has ahole in it that is 3.9cm in diameter at 20c.what common temperature must they have so the ball just spueezs through the hole ?.

A force of 277 N is applied horizontally to a crate in order to displace the crate 40.0 m across a level floor at a constant velocity. As a result of this work, the crate's internal energy is increased by an amount equal to 19 percent of the crate's initial internal energy. Calculate the initial internal energy of the crate. (Disregard the work done on the floor, and assume that all work goes into the crate.)

A 2.0L sample of gas at 27C and 800 torr is cooled to -123C. If the pressure remains constant, what is its new volume?

does the room temperature remains the same for winter and summer?

Temperature is the average of the kinetic energies of all molecules of a body.Then, why do we consider it a different fundamental physical quantity altogether [K], and not an alternate form of energy, with dimensional formula derived from 3 initial fundamental quantities length[L], mass[M] and time[T]?

A force is applied to a 2.0- radio-controlled model car parallel to the -axis as it moves along a straight track. The -component of the force varies with the -coordinate of the car as shown in the figure (Figure 1) .
Part A
Calculate the work done by the force when the car moves from =0 to =3.0.
Express your answer using two significant figures.
=


SubmitMy AnswersGive Up
Try Again; 4 attempts remaining
Part B
Calculate the work done by the force when the car moves from =3.0 to =4.0.
Express your answer using two significant figures.
=


SubmitMy AnswersGive Up
Part C
Calculate the work done by the force when the car moves from =4.0 to =7.0.
Express your answer using two significant figures.
=


SubmitMy AnswersGive Up
Part D
Calculate the work done by the force when the car moves from =0 to =7.0.
Express your answer using two significant figures.
=


SubmitMy AnswersGive Up
Part E
Calculate the work done by the force when the car moves from =7.0 to =2.0.
Express your answer using two significant figures.
=


SubmitMy AnswersGive Up
Provide FeedbackContinue
of 1

The antiseptics used for cuts and wounds in human flesh have low surface tension ?why?

What is the frequency of a sound wave in air at 20°C that has a wavelength of 0.4 m?

. How much heat must a refrigerator remove from 100 g of water at 25 º C to convert it to ice at 0º C? (Specific heat of water = 1 cal /gº C and heat of fusion of ice = 80 cal/g at 0º C)

an aluminum cup of 100cm^3 capacity, is completely filled with ethanol at 15 degree Celsius. how much ethanol, if any, will spill out of the cup if the temperature of both cup and ethanol is increased at 22 degree Celsius?