Question 1 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. d. 12 °C B. c. 56 °C C. b. 34 °C D. a. 25 °C 1 points   Question 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. c. 3400 J/(kg ∙ °C) B. d. 1250 J/(kg ∙ °C) C. a. 1084 J/(kg ∙ °C) D. b. 1500 J/(kg ∙ °C) 1 points   Question 3  Using the standard form of a wave x = A cos(ωt), 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 For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Content Editor Use arrow keys to select functions Bold Italic Underline Font family Font size Text Color ▼ Bullet List ▼ Number List ▼ Toggle Spell Checker ▼ Insert/Edit Link Remove Link Bold Italic Underline Strikethrough Format Font family Font size Bullet List Number List Text Color ▼ Highlight ▼ Remove Formatting Cut Copy Paste Find Undo Redo Align Left Align Center Align Right Align Full Indent Outdent Superscript Subscript Insert/Edit Link Remove Link Direction Left to Right Direction Right to Left Line Horizontal Rule Insert Nonbreaking Space Character Toggle Spell Checker Browse My YouTube Videos Launch Math Editor Insert Mashup ▼ Show Nonprinting Characters Blockquote Symbol Emotions Anchor Insert/Edit Table Table Row Properties Table Cell Properties Insert Row Before Insert Row After Delete Row Insert Column Before Insert Column After Delete Column Merge Table Cells Split Merged Table Cells HTML Code View Edit CSS Style Preview Help Full Screen Show More Path: Words:0 1 points   Question 4 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. 36 rad/s2 B. 16 rad/s2 C. 24 rad/s2 D. 18 rad/s2 1 points   Question 5 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. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Content Editor Use arrow keys to select functions Bold Italic Underline Font family Font size Text Color ▼ Bullet List ▼ Number List ▼ Toggle Spell Checker ▼ Insert/Edit Link Remove Link Bold Italic Underline Strikethrough Format Font family Font size Bullet List Number List Text Color ▼ Highlight ▼ Remove Formatting Cut Copy Paste Find Undo Redo Align Left Align Center Align Right Align Full Inde ...

1. Question 1
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.
d. 12 °C
B.
c. 56 °C
C.
b. 34 °C
D.
a. 25 °C
1 points
Question 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.
c. 3400 J/(kg ∙ °C)
B.
d. 1250 J/(kg ∙ °C)
C.
a. 1084 J/(kg ∙ °C)

2. D.
b. 1500 J/(kg ∙ °C)
1 points
Question 3
Using the standard form of a wave x = A cos(ωt), 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
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1 points
Question 4
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.
36 rad/s2
B.
16 rad/s2
C.
24 rad/s2
D.
18 rad/s2
1 points
Question 5
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.
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1 points
Question 6
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.
d. 1600 kg/m3

11. B.
c. 1200 kg/m3
C.
a. 2300 kg/m3
D.
b. 4500 kg/m3
1 points
Question 7
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.
d. 977 K
B.
c. 2590 K
C.
b. 572 K
D.
a. 627 K
1 points
Question 8
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.

12. 2PV
B.
3PV
C.
PV
D.
4PV
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Question 1
1.
A car uniformly decelerates at a rate of -5.00 m/s2. How far

13. does the car travel after 1.50 seconds if it initially was moving
at a speed of 25.0 m/s?
A.
d. 28.1 m
B.
a. 25.0 m
C.
c. 31.9 m
D.
b. 37.5 m
12.5 points
Question 2
1.
A cannonball is fired horizontally with an initial velocity of 655
m/s from the end of a cliff 725 m high. How far in the x
direction does the cannonball in the air before it hits the
ground?
A.
c. 7960 m
B.
d. 9540 m
C.
a. 7884 m
D.
b. 5670 m
12.5 points
Question 3
1.

14. A block is at the top of a ramp that is 4.5 m above a table. If the
block slides without friction, how fast is it going at the bottom
of the ramp?
A.
a. 9.4 m/s
B.
c. 0.0 m/s
C.
d. 3.6 m/s
D.
b. 4.5 m/s
12.5 points
Question 4
1.
The international space station orbits the Earth at an altitude of
about 250 km. What is the acceleration due to gravity at that
height above the ground? The mass of the Earth is 5.98 x 1024
kg and the radius of the Earth is 6371 km.
A.
c. 9098710 m/s5
B.
d. 9.10 m/s2
C.
a. 9.8 m/s5
D.
b. 0 m/s5
12.5 points
Question 5

15. 1.
A 25 kg is acted on by a 45 N horizontal force. If the box
accelerates at a rate of .75 m/s2, what is the coefficient of
kinetic friction between the box and the table?
A.
d. 1.05
B.
a. 0.25
C.
c. 0.55
D.
b. 0.11
12.5 points
Question 6
1.
Three forces pull on a block, the first is 65 N and in the positive
x direction. The second is 65 N in the negative x direction and
the third is 45 N and is 90 degrees from the first two forces in
the positive y direction. What can you say about the resultant
force?
A.
c. The resultant force is 45 N and in the negative y direction.
B.
d. The resultant force is 65 N and in the negative y direction.
C.
b. The resultant force is 45 N and in the positive y direction.
D.
a. The resultant force is zero.

16. 12.5 points
Question 7
1.
A subatomic particle with mass m initially at rest suddenly
decays. If one of the resultant particles with mass 0.40 m of
mass leaves with a velocity of 5.5 x 105 m/s, what is the
velocity of the other particle created?
A.
6.0 x 105 m/s
B.
3.7 x 105 m/s
C.
3.3 x 105 m/s
D.
2.5 x 105 m/s
12.5 points
Question 8
1.
A 7.93 kg box is pulled along a horizontal surface by a force FP
of 84.0 N applied at a 47.0º angle. If the coefficient of kinetic
friction is 0.35, what is the acceleration of the box?
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