HW6 Part2
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Dec 6, 2023
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HW6 Part 2 [10 pts]
+
BONUS [8 pts]
If you use the word document to enter your answers, please use bold font for your answers so that the
graders can easily discern your answers from the questions.
a)
What are Newton’s Three Laws of Motion? [3 pts]
b)
What is the formula for Newton’s Universal Law of Gravitation? Please explain what each of its five
variables represent. [3 pts]
c)
Based on your formula in part (b), how does gravity change as distance between the two bodies
increases? [1 pt]
d)
Equate Newton’s 2
nd
Law of Motion to Newton’s Universal Law of Gravitation. [1 pt]
What term can be found on both sides of the equals sign and therefore cancels out? [1 pt]
What does this say about how bodies fall towards the surface of the Earth (assume air drag can be
ignored here)? [1 pt]
BONUS ON NEXT PAGE!!
1.
An object at rest tends to stay at rest, and an object in motion tends to stay in motion with the
same speed and in the same direction unless acted upon by an unbalanced external force.
2.
The acceleration of an object is directly proportional to the net force applied to it and inversely
proportional to its mass.
3.
For every action, there is an equal and opposite reaction.
Newton's Universal Law of Gravitation is a fundamental law of physics that describes the gravitational force between two
objects with mass.
F represents the gravitational force between two objects.
G is the gravitational constant, a constant of proportionality that determines the strength of the
gravitational force
m1 and
m2 are the masses of the two objects that are experiencing the gravitational attraction. m1 is
typically the mass of one object (e.g., a planet), and m2 is the mass of the other object (e.g., a satellite).
r is the distance between the centers of the two objects. It represents the separation between the two masses.
The gravitational force (
F) between two objects decreases as the distance (r) between the centers of these
two objects increases. This relationship is described by the inverse square law, which means that the force is
inversely proportional to the square of the distance.
F
net
=F
gravity
The term that can be found on both sides of the equals sign and therefore cancels out is the mass (
m) of the object experiencing the gravitational
force. This cancellation occurs because the same mass appears on both sides of the equation.
This equation essentially states that when objects fall toward the surface of the Earth, the net force acting on them is the
gravitational force, and this force causes them to accelerate at a rate equal to the acceleration due to gravity.
BONUS – worth 8 pts to be added to your HW Part 2s
B1)
What is white light? [2 pt]
B2)
Why does white light appear white to our eyes? [2 pt]
B3)
Why does red light appear red to our eyes? [2 pts]
B4)
Please explain why a red t-shirt appears to be red. Make sure you discuss how light interacts with it. [2 pts]
A type of visible light that is a combination of all the colors of the visible spectrum
White light appears white to our eyes because it contains all the colors of the visible spectrum, and our eyes
perceive this mixture of colors as white due to the way our retinas and visual processing system respond to
different wavelengths of light.
Red light appears red to our eyes because it predominantly consists of photons with longer wavelengths that
stimulate the L-cones in our retinas. These cones are specialized to detect longer wavelengths and send signals to
our brain, resulting in the perception of the color red.
A red t-shirt appears red because its fabric contains pigments or dyes that selectively absorb shorter wavelengths
of light (e.g., green and blue) while reflecting longer wavelengths (red). The red wavelengths of light are detected
by our eyes and interpreted by our brain as the color red. This interaction between the t-shirt and light is the
basis for the perception of color in everyday objects.
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Related Questions
Please complete question no 1
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A spaceship in outer space has a doughnut shape with
500-m outer radius. The inhabitants stand with their
heads toward the center and their feet on an outside rim,
as shown in(Figure 1).
Part A
Over what time interval would the spaceship have to complete one rotation on its axis to make a bathroom scale have
the same reading for the person in space as when on Earth's surface?
Figure
Express your answer with the appropriate units.
HA
T =
Value
Units
Submit
Request Answer
Part B Complete previous part(s)
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Earth's equatorial radius is 6378 km. A spacecraft is in circular
orbit 300 km above the equator.
Part A
If the spacecraft orbits every 90.5 minutes, what's its speed?
Express your answer with the appropriate units.
HA
?
Value
Units
Submit
Request Answer
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, I just need help , thank you!
asap ,it’s just for review
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The class I'm taking is physics for scientists and engineers!
I am completely stuck. Need help. I have attached the problem. Please view both attachments before answering.
*****I need help with parts D and F please. ******
***please use SI units and report the numeric part only for all answers!***
I have also attached the links to BOTH videos below. If you can please explain your answer so I can fully understand. Thank you so much!
Link: https://youtu.be/eK7dMnnElx8Link: https://youtu.be/4IYDb6K5UF8
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Answer Requested
The graph of a proportional relationship is a straight line that passes through the origin:
y = Cx
4C-
When we
double x,
y doubles
as well.
2C-
2
Notice that when the x value increases by 1, the y value increases by C·1, and when the x value increases by 2, the y value increases by C. 2.
1
In the graph that you just drew, C = 1/2. Therefore, when the x value increases by 1, the y value increases by
1. How much does the y value
increase when the x value is increased by 3?
For the following parts, use the fact that when an object is moving at constant velocity, position s and time t are related by s = vt + so , where v is the speed of
the object and so is the position at time zero in the chosen coordinate system.
Part B
You wave goodbye to a friend after physics class, and she rides off on her bike. After 3.0 s, she is 15 m away. How far away will she be after 30 s ?
Express your answer in meters to two significant figures.
View Available Hint(s)
Πνα ΑΣφ
?
m
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SR If the mass of one object doubles while the other increases by a factor of three, the gravitational force
between the objects changes by a factor (times) of? (A word or number is acceptable).
"Submit your work with this last question as an attached photo or scan.
0 6
O six
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units
To do this, you must feed it a series of commands of the form "turn degrees and move
forward". Angles are measured in degrees, with positive angles turning counterclockwise, and negative
angles turning clockwise. All turns are relative to the robot's current direction. The grid marks 1 unit
squares.
From the red starting dot, with the robot facing directly to the right, issue your commands: (all commands
should be given as decimal values)
Move 1: Turn
9
Move 2: Turn
Move 3: Turn
Move 4: Turn
degrees and move
degrees and move
degrees and move
degrees and move
units forward
units forward
units forward
units forward
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DIRECTION: Find in the puzzle the scientific words used in this unit lesson. You
may use markers or highlighters. For words written horizontally across, use red
markers, green for downward and violet for words diagonally along the puzzle.
Indicate the position or coordinates of the first and last letter of the text word in the
hint column; i.e. Love (K12, N12).
HINTS:
1. A disturbance or energy propagating in space or a medium
2. A longitudinal-mechanical wave consisting of pressure fluctuations
3. The visible part of the electromagnetic spectrum
4. The vibrating particles move perpendicular to wave motion
5. The vibrating particles move parallel to the wave motion
6. Transversal wave travelling in free space at the speed of light
7. Waves requiring physical medium for transmission
8. A wave which is a combination of transverse and longitudinal
9. Bouncing back when a wave encounters a solid impenetrable barrier
10. Bending of wave from one medium to another of different density
11.…
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A 0.65-m-diameter solid sphere can be rotated about
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which accelerates it uniformly from rest through a total
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I could not figure out a-b during lecture please help me solve it! ANSWER ALL OR DO NOT ATTEMPT
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A 400 gram rock is thrown vertically upwards from the surface of Earth. When it is 14 m above the ground, it is traveling upwards at 24 m/s.
3) Determine the rock's initial speed right after it was thrown?
4) Evaluate your solution. Explain why the magnitude of your answer reasonable? How do you know what the sign of your answer should be? In what way is your answer consistent with your representations? Please be as detailed as possible
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Please Answer the following question step-wise with detailed explanations.
Thanks in advance? ❤️
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I am needing assistance with this question in its entirety
***Please type your answer or write in print, because I have had great difficulty with understanding most handwritten assistance done in cursive or mixed print/cursive.
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a mycourses.13IU.U0
Help English United States (en_us)
Resources
s2
Courses -
ysical Science I (lec) (PHYS-1315-7Z3)
courses / tstc / 22-SP / TSTC / 7PHY / 22/SP PHYS-1315-7Z3
pter 2 - Motion / Homework #2 Part 2
An 83.0 kg man is standing on a frictionless ice surface when he throws a 2.90
kg book at 11.0 m/s. With what velocity does the man move across the ice?
Answer:
Choose...
ge
Next
work #2 Part 1
Jump to...
Next Steps
tion
6
npt...
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Show picture and all work please asap please faster
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Kindly provide a COMPLETE and CLEAR solution. (Answer should be typewritten)
*Solve the following problem accordingly. Show your solution. *#6
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Activity 2
Answer questions on vectors and scalars
Exam words
1.
What is meant by the terms physical quantity, equal vector and
negative vector?
define: give a full meaning
of something accurately, as
in a dictionary
draw: show in a visual way
2.
Write definitions for vector quantity, scalar quantity and
resultant vector.
3
explain: give the details of
something in full sentences
without giving reasons
Classify the following quantities as vectors or scalars: mass,
weight, temperature.
Force F = 5 N acts to the right.
4.
Draw a fully labelled scale drawing of the 5 N force using a scale of
10 mm : 1 N. (Hint: Refer to Figure 5 on page 213.)
Draw and label the following vectors to scale (one below the other):
4.2.1 2F (Remember F = 5 N to the right)
4.2.2 0,5F
4.1
calculate: work out
4.2
following a method
4.2.3-F
e p
4.2.4 -2F
Two vectors, F, and F, act on an object. F= 2 N upwards and F, = 2 N
downwards.
Make a tail-to-head sketch vector diagram of the forces.
Explain whether F, and F,…
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