Physics Test Questions Essay

Submitted By Saket-Bhargava
Words: 886
Pages: 4
Open Document
1- IS MISSING and THERE ARE TWO NUMBER 2s
YIZHI FANG(LARA)
I have hard time to fix mistakes in your work since that you have not used Microsoft equation 3.0
2.for r(t)=
a)find the tangential and normal component of acceleration. Since r(t)= V=r’(t)= A= r’’(t)=

t j+k

b)find the osculating circle at t=2.
According to the formula: K(t)=
K(2)= ==
Saket Bhargava

2) - For
a) Find the tangential and normal component of acceleration
b) Find the osculating circle at t = 2. Wrong Differentiations

a)

Yoel Pikari
3- Prove the formula for curvature in rectangular form and find the curvature of at
Let the equation of the curve be . And let be the angle which the tangent at any point makes with the x axis. Differentiating with respect to s gives:

Where come from they were not defined
, because

The curvature of at :
,

Fareeha Very Good
4. a) Find radius of curvature on where is the radius and is the curvature of r such that and When taking the magnitudes of these vectors, using the trig identity , the equation simplifies to

b) Show that the radius is increasing for all times
Because the radius is inversely proportional to the curvature, as the curvature decreases, the radius increases. We can see through the graph of the function as well as a table that the curvature decreases throughout time, which means that the radius is increasing as t goes to infinity.

In addition, by taking the derivative of the radius of curvature as a function of time, we find that (using the product rule)

increases Here, we can see that the radius has no critical points, meaning it increases always
Gouri Gupta
#5. Verify that for all the unit vectors are orthogonal to each other.

Since are unit vectors and perpendicular, You have not showed that T and N are perpendicular yetalso being a unit vector, is perpendicular to

Bijan Very Good
6. Prove the formula for curvature in polar and find the curvature for

Let us begin this derivation by making some statements about the above trigonometry.

If we can find out what are equal to, we can solve for the curvature.Referring to the above,
, where r’=Taking a derivative with respect to θ yields,
, where r’’= Now, we know that
Now that we have both pieces of the puzzle, we can solve for the curvature.

Kseniya Konova Very Good
7- Show that

Edrees Very Good
# 8 - Prove that
First of all, we know that the unit tangent vector is equal to r’ (t) over the magnitude of r’(t). In other words: . Then we multiply each side by the magnitude of r’ (t) so we end up with: . We also know that the magnitude of r’ (t) is equal to (ds/dt) so we get: . The next step is to differentiate our current equation and to do so we must use the product rule so we get: . Next we use the chain rule to get: , which simplifies to , where Κ is the curvature of the function and is the unit normal vector. If we wish to rewrite the equation in a different notation we get .
9- IS MISSING BUT I HAVE SENT YOU TH HINT AND SOME STEPS ON SATURDAYs
Chase Yamate Very Good (Fix it)

10) –a) Find the oscillating circle to the curveat time T =1 sec. b) And Find how fast the area of the circle increases as the time increases.
a)the curve is a parabola. So: and
And from the lessons explained by Professor Mosh, the curvature
Substituting what we found: Now if t=1 sec then x=1, therefore we have: so the curvature
Show More

Related Documents: Physics Test Questions Essay

Physics Test Questions with Answers Essay

Playing Toss! Abigail and Benji are tossing a ball underhand back and forth in the gym. They are standing 15 feet apart. It takes 3.5 seconds for the ball to go from one participant to the other. They play like this for 5 minutes. 1. Assign a variable to represent the height of the ball from the ground and the time it takes for a single toss. Y – Height X- Time A. Is there a functional relationship between the height of the ball from the ground and time for a single toss? Yes, the higher…

Words 901 - Pages 4

Personal Narrative: My Time At The Community College

My time at the community college in Baltimore was spent in small classroom sizes. I was able to meet with the professors for tutoring and enhance my understanding of subjects with ease. The number of people taking the engineering curriculum was limited; this led to me accomplishing many of my courses with the same group of peers and also permitted me to create a strong study group. My time at the community college felt like it allowed me to capture a keen sense of what it means to accomplish college-level…

Words 1563 - Pages 7

Cern: Elementary Particle Physics Essay

elementary particle physics as a science. When I been at the Institute, I studied physics of elementary particles, so most of the terms I was know. The first thing that impresses - scale. Especially the number of people who worked on this project and dimension of the collider. 27 kilometers of scientific equipment: sensors, cooling systems, cables, magnets, etc. And all this must be coupled with absolute precision. Since the one miscalculation can lead to a collapse in the final test. But they did…

Words 371 - Pages 2

Experiment and Risk Assessment Essay

Teacher signature: | ……………………………………………………………………………….. | Blank page Year 9 Student Research Project (SRP) Physics in action In every Olympic event at the 2012 London Olympics all athletes have incorporated the study of Physics in their preparation. Forces and motion are an integral part of each event. Technique, equipment, clothing, direction and speed are all based on Physics concepts. Forces, both helpful and unhelpful, are closely considered and influence technique, equipment and clothing…

Words 2048 - Pages 9

Iodine Experiment

sheets Zinc Rod Looks like rods that are a dull gray color on the outside but a shiny silver on the inside where there are cuts This table records the observations made about the physical appearance of all chemicals used in this experiment. Tabulated Test Results and Calculations: Part 1: Solubility Results Table 2-Solubility of Iodine: Solvent Results Water Liquid turned yellow but few pieces of crushed iodine still remained Slightly Soluble Alcohol Liquid turned a dark red-brown color but few pieces…

Words 1634 - Pages 7

Dews: Sat and Sat Subject Test Essay

laser surgery. (A) nervous about (B) defensive about (C) tolerant of (D) enamored of (E) overwhelmed by Want a hint? Register for the tests SAT Today is Wednesday, June 04, 2014 Test Date Deadline* Fee Status Jun 7 May 28 $96 Passed * Deadlines expire at midnight, EDT (U.S.). More Test Dates Subject Tests Select a subject test to search for available dates The Redesigned SAT: Find out what’s changing and what it means to you. > promo_320x190.jpg Buy Together…

Words 411 - Pages 2

Review Science and Scientific Research Essay

Review of “Science and Scientific Research” The chapter covering the topics of Science and Scientific Research by Anol Bhattacherjee, begin with the question of “What is research?”, Bhattacherjee breaks the chapter into hierarchical topics starting with a basic understanding and definition of science to begin answering that question. He further goes into more depth covering fundamental aspects of scientific knowledge, scientific research, scientific method, the types of scientific research, and…

Words 1664 - Pages 7

No Is The Right Answer

because they failed a standardized test, and rather than enjoy the curriculums they want to take, they have to study for the test all the time. Since I was a kid, the people around me always told me that foreign countries’ education systems treat students humanely and are more about developing personalized skills. Before I read this essay, I didn’t know that U.S. students also have such problems. As a Chinese student I have the experience to talk about standardized tests because Chinese students have…

Words 475 - Pages 2

LLP English Leading The Learning ERW Andy Goudge Essay

Leading the Learning Name: Leadership and Learning Portfolio: Entry One Use the template below to record your entry Date 11/1/2014 1. Rationale and context for the project (750 words) In my current role as head of Physics the performance of pupils in terminal exams at Key Stage 5 is of significant concern. My year 12 pupils progressed well throughout the course between September 2012 and June 2013. This was demonstrated throughout various assessments during the year…

Words 7008 - Pages 29

Chiropractor Research Paper

Such as knowing about the patients and what they need done. They have to be able to work with the people and understand their problems and decide what can help them the best. Normally this will be done through questions and basic physics tests. He or she will help fix the problem that the patient with their learned skills. As a chiropractor there are many requirements you have to meet other than the stuff from school. Such as, the minimum age that a chiropractor can be is…

Words 451 - Pages 2