# Final Physics

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**1.**

A piece of gold with a mass of 5.50 kg and density of 19300 kg/m^{3} is suspended from a string and then totally immersed in a beaker of water. Using density of water is 1000 kg/m^{3}

a) Determine the volume of the piece of gold.

b) Determine buoyant force on the gold when it is submersed.

**2.**

560K. Is the gas undergoes an adiabatic compression and 3750 J of work

is done on the gas, what is the final temperature of the gas?

A) b. 572 K

B) d. 977 K

C) a. 627 K

D) c. 2590 K

**3.**

to 88°C and placed in a copper calorimeter with mass 0.150 kg which

contains 0.500 L of water that are both initially at 12.6°C. Over a

short period of time the mixture comes to an equilibrium temperature of

22.5°C, what is the specific heat of the metal?

A) b. 1075 J/(kg ∙ °C)

B) a. 1250 J/(kg ∙ °C)

C) c. 1500 J/(kg ∙ °C)

D) d. 3400 J/(kg ∙ °C)

**4.**

A gas is taken through the cycle illustrated here. During one cycle, how much work is done by an engine operating on this cycle?

A) 3PV

B) 2PV

C) PV

D) 4PV

**5.**

when it is dry. When it is completely submerged in water is has a weight

of 150 N. What is the density of the material is the density of water

is 1000 kg/m

^{3}?

A) a. 2300 kg/m^{3}

B) d. 1600 kg/m^{3}

C) c. 1200 kg/m^{3}

D) b. 4500 kg/m^{3}

**7.**

A) a. 25 °C

B) d. 12 °C

C) b. 34 °C

D) c. 56 °C

**8.**

goes from rest to a tangential velocity of 5.6 m/s. If it does this in

2.5 seconds, what is its angular acceleration?

A) 36 rad/s^{2}

B) 18 rad/s^{2}

C) 16 rad/s^{2}

D) 24 rad/s^{2}

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