HW01, Phys2306, Spring 2006, sections 14288 14291 14295 14296 with solutions
Problems from MasteringPhysics with minor clarifications.
Compute the wavelength corresponding to 20 Hz for waves
in water (v = 1480 ms ).
15.3 - Speed, Wavelength, Freq
Chapter 20, six more example problems:
(20.28) Make tea with 0.250 kg of 85.0 C water and let it cool to 20.0 C before
(a) Swater = . C
0.250 kg 4190 J/kgK ln (293 K / 358 K) = 209.9 J/K.
[Note: When heat flows out of (or into) a syst
HW 10 Solutions
Introduction to the Ideal Gas Law
a) A gas sample enclosed in a rigid metal container at room temperature (200C) has an absolute
pressure p1. The container is immersed in hot water until it warms to 400C. What is the new
Phys 197 Homework Solution 15A
The four strings on a violin have different thicknesses, but are all under approximately
the same tension. Do waves travel faster on the thick strings or the thin strings? Why? How does
the fundamental vibration frequen
PHYC 161 - Chapter 18-20
Bibek Babu Pokharel
May 2, 2017
Heat into work!
Consider the setup shown in the figure below.
Here an ideal gas is confined within a thermally isolated cylinder. It consists of N atoms
initially at a pressure of p0 . A movable pis
Chapter 14 problems
Prepared by Vince Zaccone
For Campus Learning
Assistance Services at UCSB
14.18 A tall cylinder with a cross-sectional area 12cm2 is partially filled with
mercury; the surface of the mercury is 5cm above the bottom of the cyl
Chapter 12 Homework
7. A typical adult human has a mass of about 70 kg.
(a) What force does a full moon exert on such a human when it is directly overhead with its
center 378,000 km away?
G mM m
( 7.35 1022 kg ) (70 kg)
Chapter 17c Homework
Heat Transfer by Conduction
Qu. 1 A rod is made of copper, it is 45 cm long and has a cross-sectional
area of 1.25 cm2. Let TH = 100 oC and TC = 0.0 oC.
a) What is the steady state temperature gradient along the rod?
(Ans: 222.2 oC/m)
0.225 kg of Helium
Molar mass of helium = 4gm/mol
Number of moles of Helium =
4 gm / mol 4 gm / mol
T = 18 + 273 = 291D K
V = 20 L = 0.020m3
Using universal gas equation,
PV = nRT
P *0.020 = 56.26*8.31* 291
P *0.020 = 136024.3
PROBLEM: Six objects are placed in a 260 degrees Celsius oven and allowed to reach thermal
equilibrium. Each object has a mass of 1.0 kg. The specific heat and thermal conductivity of
each substance are denoted by c and k.
Rank these objects on the basis