College Physics
7th Edition
ISBN: 9780321601834
Author: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
Publisher: Addison-Wesley
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Chapter 4, Problem 1CQ
(a)
To determine
To explain whether the given statement is correct.
(b)
To determine
To explain whether it can be concluded that the object is at rest, if the net force on the object is zero.
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I need help with part B. I cant seem to get the correct answer. Please walk me through what youre doing to get to the answer and what that could be
Question 6:
Chlorine is widely used to purify municipal water supplies and to treat swimming pool
waters. Suppose that the volume of a particular sample of Cl₂ gas is 8.70 L at 895 torr
and 24°C.
(a) How many grams of Cl₂ are in the sample?
⚫ Atomic mass of CI = 35.453 g/mol
• Molar mass of Cl₂ = 2 x 35.453 = 70.906 g/mol
Solution:
Use the Ideal Gas Law:
Step 1: Convert Given Values
• Pressure: P = 895 torr → atm
PV=
= nRT
1
P = 895 ×
= 1.1789 atm
760
•
Temperature: Convert to Kelvin:
T24273.15 = 297.15 K
• Gas constant: R = 0.0821 L atm/mol. K
Volume: V = 8.70 L
Step 2: Solve for n
.
PV
n =
RT
n =
(1.1789)(8.70)
(0.0821)(297.15)
10.25
n =
= 0.420 mol
24.405
Step 3: Calculate Mass of Cl₂
Final Answer: 29.78 g of Cl₂.
mass nx M
mass=
(0.420)(70.906)
mass=
29.78 g
E1
R₁
w
0.50
20 Ω
12
R₁₂
ww
ΒΩ
R₂
60
E3
C
RA
w
15 Ω
E2
0.25
E4
0.75 Ω
0.5 Ω
Chapter 4 Solutions
College Physics
Ch. 4 - Prob. 1MCQCh. 4 - A force (a) always produces motion, (b) is a...Ch. 4 - If an object is moving at constant velocity, (a)...Ch. 4 - If the net force on an object is zero, the object...Ch. 4 - The force required to keep a rocket ship moving at...Ch. 4 - Prob. 6MCQCh. 4 - Prob. 7MCQCh. 4 - The weight of an object is directly proportional...Ch. 4 - Prob. 9MCQCh. 4 - A brick hits a glass window. The brick breaks the...
Ch. 4 - Prob. 11MCQCh. 4 - Prob. 12MCQCh. 4 -
The condition(s) for translational equilibrium is...Ch. 4 - Prob. 14MCQCh. 4 - Prob. 15MCQCh. 4 - Prob. 16MCQCh. 4 - Prob. 17MCQCh. 4 - Prob. 1CQCh. 4 - Prob. 2CQCh. 4 - Prob. 3CQCh. 4 - Prob. 4CQCh. 4 - Prob. 5CQCh. 4 - The following is an old trick (Fig. 4.28). If a...Ch. 4 - Prob. 7CQCh. 4 - A student weighing 600 N crouches on a scale and...Ch. 4 - An astronaut has a mass of 70 kg when measured on...Ch. 4 -
In general, this chapter has considered forces...Ch. 4 - Prob. 11CQCh. 4 - Prob. 12CQCh. 4 - Prob. 13CQCh. 4 - Prob. 14CQCh. 4 - Prob. 16CQCh. 4 - Prob. 17CQCh. 4 -
Identify the direction of the friction force in...Ch. 4 - Prob. 19CQCh. 4 - Prob. 20CQCh. 4 - Prob. 21CQCh. 4 - Prob. 22CQCh. 4 - Prob. 23CQCh. 4 - Which has more inertia, 20 cm3 of water or 10 cm3...Ch. 4 - Prob. 2ECh. 4 - In Exercise 2, if the 35-N force acted downward at...Ch. 4 -
A net force of 4.0 N gives an object an...Ch. 4 - Prob. 5ECh. 4 - Prob. 6ECh. 4 - A 5.0-kg block at rest on a frictionless surface...Ch. 4 - (a) You are told that an object has zero...Ch. 4 - A fish weighing 25 lb is caught and hauled onto...Ch. 4 - A 1.5-kg object moves up the y-axis at a constant...Ch. 4 - Three horizontal forces (the only horizontal ones)...Ch. 4 - Prob. 12ECh. 4 - Prob. 13ECh. 4 - Prob. 14ECh. 4 - IE ● A 6.0-kg object is brought to the Moon, where...Ch. 4 - A gun is fired and a 50-g bullet is accelerated to...Ch. 4 - Prob. 17ECh. 4 - Prob. 18ECh. 4 - Prob. 19ECh. 4 - Prob. 20ECh. 4 - Prob. 21ECh. 4 - Prob. 22ECh. 4 - Prob. 23ECh. 4 - Prob. 24ECh. 4 - An object (mass 10.0 kg) slides upward on a...Ch. 4 - In an emergency stop to avoid an accident, a...Ch. 4 - Prob. 27ECh. 4 - A force of 10 N acts on two blocks on a...Ch. 4 - Prob. 29ECh. 4 - In a pole-sliding game among friends, a 90-kg man...Ch. 4 - A book is sitting on a horizontal surface. (a)...Ch. 4 - In an Olympic figure-skating event, a 65-kg male...Ch. 4 -
A sprinter of mass 65.0 kg starts his race by...Ch. 4 - Jane and John, with masses of 50 kg and 60 kg,...Ch. 4 - Prob. 35ECh. 4 - A 75.0-kg person is standing on a scale in an...Ch. 4 - Prob. 37ECh. 4 - Prob. 38ECh. 4 - The weight of a 500-kg object is 4900 N. (a) When...Ch. 4 - A boy pulls a box of mass 30 kg with a force of 25...Ch. 4 - Prob. 41ECh. 4 - Prob. 42ECh. 4 - Prob. 43ECh. 4 - Prob. 44ECh. 4 - Prob. 45ECh. 4 - Assuming ideal frictionless conditions for the...Ch. 4 - Prob. 47ECh. 4 -
A55-kg gymnast hangs vertically from a pair of...Ch. 4 - A physicist’s car has a small lead weight...Ch. 4 - A 10-kg mass is suspended as shown in Fig. 4.41....Ch. 4 - Prob. 51ECh. 4 - Prob. 52ECh. 4 - Prob. 53ECh. 4 - A horizontal force of 40 N acting on a block on a...Ch. 4 - The Atwood machine consists of two masses...Ch. 4 - Prob. 56ECh. 4 - Prob. 57ECh. 4 - Prob. 58ECh. 4 - Prob. 59ECh. 4 - In the frictionless apparatus shown in Fig. 4.43,...Ch. 4 - In the ideal setup shown in Fig. 4.43, m1 = 3.0 kg...Ch. 4 - A20-kg box sits on a rough horizontal surface....Ch. 4 - Prob. 63ECh. 4 - Prob. 64ECh. 4 - Prob. 65ECh. 4 - Prob. 66ECh. 4 - A 1500-kg automobile travels at 90 km/h along a...Ch. 4 - Prob. 68ECh. 4 - Prob. 69ECh. 4 - Prob. 70ECh. 4 - Prob. 71ECh. 4 - Prob. 72ECh. 4 - Suppose the slope conditions for the skier shown...Ch. 4 - Prob. 74ECh. 4 - A block that has a mass of 2.0 kg and is 10 cm...Ch. 4 - In the apparatus shown in Fig. 4.46, m1 = 10 kg...Ch. 4 - In loading a fish delivery truck, a person pushes...Ch. 4 -
An object (mass 3.0 kg) slides upward on a...Ch. 4 - For the apparatus shown in Fig. 4.40, what is the...Ch. 4 - Prob. 81ECh. 4 - Prob. 82ECh. 4 - Prob. 83ECh. 4 - Prob. 84ECh. 4 - Prob. 85ECh. 4 - Prob. 86ECh. 4 - Prob. 87ECh. 4 - Prob. 88E
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