* SOLUTIONS Jaquins Sections *
SCI111HomeworkAssignment#1
(20PointsTotal)
CHAPTER 1
QUESTIONS FOR THOUGHT
2. What two things does a measurement statement always contain?
What do the two things tell you? (see p 4 and 5) (2 Pt)
A measurement statement alway
1. (a) What is the speed of light while traveling through a vacuum? C=3x10^8m/s (b) While traveling through air at 30 Celsius degrees? V=(3x10^8m/s)/(1.00026)=2.9992x10^8m/s (c) While traveling through air at 0 Celsius degrees? V=(3x10^8)/(1.00029)=2.9991
Complete your reading assignment for week 5 (Chapter 5: Wave Motions and Sound) and solve the ("Parallel Exercises, Group B") problems below: 1. A water wave has a frequency of 6 Hz and a wavelength of 3 m. (a) What is the period of these waves? (b) What
12) 11000m/s=xtime to travel 380000km
11000m/s(1km=1000m)=11km/s
(380000km)/(11km/s)=34545.4545s
17)a)v=at using a to equal free fall acceleration
v=(9.8m/s2)(2.5s)
9.8*4m/s2*s
24.5m*s/s*s
24.5m/s
b)v average = vf+vi/2
=(24.5m/s+0m/s)/2
=12.25m/s
c)d=1/2a
1)A] T=1/frequency
=1/6=0.167s
[B] velocity=(wavelength)(frequency)
=3m*6Hz=18m/s
7)divide the time by 2 to account for trip there and back
then (velocity)(time)=distance
1530m/s*1.125s=1721.25m
9)Vtp(m/s)=V0+(0.600m/s/C)(Tp)
=331m/s+(0.600m/s/0C)(20C)
=3
Physics Lab 3
Sound Waves
We will use this experiment to explore sound waves. The simulation replicates a sound
source and allows the visualization of the emitted sound waves. You can change the
frequency and/or amplitude of the sound, and enable/disable
Physics Lab 5
The photoelectric effect
This lab will investigate the photoelectric effect. The photoelectric effect is the emission
of electrons from a surface when illuminated with light of a certain frequency. The first
insight to understanding this phe
Physics Lab 4
Reflection and Refraction of Light
In this activity, the properties of reflection and refraction of light will be explored. The
simulation shows the light rays as they are incident on a medium interface (incident ray),
the reflected from the
Physics Lab 2
Momentum
We will use this experiment to explore momentum in one dimension. The simulation
replicates an air track on which two carts can move without any friction. Take a few
minutes to investigate the simulation and become familiar with its
Physics Lab 2
Momentum
We will use this experiment to explore momentum in one dimension. The simulation replicates
an air track on which two carts can move without any friction. Take a few minutes to investigate
the simulation and become familiar with its
Physics Lab 1
Density
This experiment will let you do "virtual" direct measurements of the mass and volume (via water
displacement) and indirect measurements of density for a variety of objects.
The lab simulation is an interactive flash movie. You can do
1.
Utilize the formula
F = 800N,
2. Utilize the formula
F=400N,
3. Utilize the formula
F=5.0kg (9.8m/s2
4. Utilize the formula
Solve for
6a. Utilize the equation 1hp=746 Watts
250 Watts
6b. Utilize the equation 1hp=746 Watts
230 hp
11. Utilize the formula
2. What is the force between two balloons with negative charge of 1.6 x 10^-10 C if the balloons are 5.0 cm (center to center) apart? F=(kq1q2)/d =[ (9.0x10^9NM^2/C^2)( 1.6 x 10^-10 C)( 1.6 x 10^-10 C)]/(.05m^2)=9.22x10^-8N 3) How much energy is available
12. Utilize the equation
13. Utilize the equation
15. Utilize the equation
()/5 s = -9.8
17a. Utilize the equation
17b. ()/2 = 12.25
17c. Utilize the equation
22. Utilize
27. Utilize multiple equations: ., Conversion equation, and Newtons 2nd Law
36
29. U
Complete your reading assignment for week 5 (Chapter 5: Wave Motions and Sound) and solve
the (Parallel Exercises, Group B) problems below:
1. A water wave has a frequency of 6 Hz and a wavelength of 3 m. (a) What is the period of these
waves? (b) What is
2. Density = mass/volume
39.5g/5.0cm3 = 7.9g/cm3
3. Mass of copper = 8.96 g/cm3
8.96 g/cm3 X 10 cm3 = 89.6 g/cm3
4. Volume = 5000g/ 0.92 g/cm3 = 5400 cm3
5. Density = 51.5g/50.0 cm3=1.03 g/cm3
That matches the density of Seawater according to Table 1.3
6.
Complete your reading assignment for week 3 (Chapter 3, Energy) and solve the "Parallel Exercises, Group B") problems below: 1 How much work is done when a force of 800.0 N is exerted while pushing a crate across a level floor for a distance of 1.5 m? 2.
Physics Lab 1
Density
This experiment will let you do "virtual" direct measurements of the mass and volume
(via water displacement) and indirect measurements of density for a variety of objects.
This virtual experiment is an interactive shockwave movie. Y