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You have a 4.7kg block of ice that is at -23 deg C. If you want to end up with 4.7kg of liquid water at 93 deg C, how much heat do you need to add to the ice? (Specific heat of liquid water = 4,186J/kg degC; Specific heat of Ice = 2090 J/kg degC; Latent heat of fusion for ice = 334,000J/kg)

A certain pendulum has a period of oscillation on earth of 2.4 sec. If it is taken to Planet X, it has a period of oscillation of 5.9sec. What is the acceleration due to gravity on the surface of Planet X? To what new length should the pendulum be extended to make its period of oscillation on Planet X be double?

A heat engine undergoes the following thermodynamic processes as it goes through it’s cycle: Step 1: Isovolumetric (isochoric) increase in pressure from Po to 5Po Step 2: Isobaric expansion from Vo to 4Vo Step 3: Isovolumetric (isochoric) decrease in pressure from 5Po to Po Step 4: Isobaric compression from 4Vo to Vo On your scratch sheet, draw the PV diagram for this cycle. What is the work done in one cycle of this engine in terms of the values given?

A 12m long bar made of copper starts at 21 deg C and is heated to 189 deg C. What is final length of the bar? The coefficient of linear expansion for copper is 17×10^-6/deg C.

Inmates who participated in vocational/educational trainings in prison were less likely to reoffend.

A grandfather brings his 7-month-old granddaughter to the clinic with a diaper rash. Which of the following is a description consistent with a Candida diaper rash?

Prisons do not need to provide medical care for inmates.

Desistance refers to an inmate making amends with their victim.

A 2m long stick is placed horizontally so it is balanced perfectly at a point in the middle. A 1.6kg mass is placed at the far left end of the stick. Where on the right side of the stick must a 4.1kg mass be placed so the entire system is in equilibrium? Be sure to specify if your position is measured from the center of the stick or from the end. Which of the masses produces a positive torque and which produces a negative torque? Explain your answer.