What is the density of the material

Reference no: EM13806586

1. Using the standard form of a wave x = A cos(θt), for this wave: 2.5 cos(6.0 t) please determine the following with the correct units:

a. The amplitude.

b. The frequency.

c. The maximum and minimum speed

d. The maximum acceleration

2. A 0.300 kg piece of metal is heated 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) d. 3400 J/(kg · °C)

C) c. 1500 J/(kg · °C)

D) a. 1250 J/(kg · °C)

3. A CD with a diameter of 12.5 cm 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) 24 rad/s²

B) 16 rad/s²

C) 18 rad/s²

D) 36 rad/s²

4. An object has a weight of 400 N 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/m3?

A) b. 4500 kg/m³

B) a. 2300 kg/m³

C) c. 1200 kg/m3

D) d. 1600 kg/m3

5. 4.50 moles of an ideal gas is at 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) c. 2590 K

B) b. 572 K

C) d. 977 K

D) a. 627 K

6. A piece of gold with a mass of 5.50 kg and density of 19300 kg/m³ is suspended from a string and then totally immersed in a beaker of water. Using density of water is 1000 kg/m³

a) Determine the volume of the piece of gold.

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

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

1829_Determine the volume of the piece of gold.png

A) 3PV

B) PV

C) 4PV

D) 2PV

8. If a car horn honking that is 450 m is heard 1.3 seconds after it goes off, what is the temperature in degrees Celsius?

A) c. 56 °C

B) a. 25 °C

C) d. 12 °C

D) b. 34 °C

Reference no: EM13806586

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