# Physics SHM

Am self studying SHM, so sorry for the elementary questions.

Would someone check/confirm some facts i think I've learned please.

1 If a sine wave graph starts at the origin at time = 0s, the sysyem is in equilibrium?

2 The amplitude at t= 0s is zero.

3 Same system, the phase angle/constant (phi) is 0 or pi?

4 When a system is displaced, but at rest, the phase angle is + or - half pi?

Thanks

1. 1. What does the sine wave represent?
2. Yes. If your sine wave is amplitude.
3. This makes no sense.
4. yes.

posted by bobpursley
2. Sorry Bob,

The wave represents a simple pendulum.

In 3, I'm referring to the equation

x(t)=Asin(wt+(greek letter phi)), so was looking to confirm that in that specific circumstance I outlined, the value of phi would either be zero or pi (as in 22/7).

Thanks.

posted by charlie

## Similar Questions

1. ### Civics to Ms.Sue

Ms.Sue can you check my questions below I like when you check them and suggest what's best. I just need to finish this study guide so I can start studying on the right questions and not on the wrong ones.
2. ### U.S History

Forming the united States, what were the two plans that arose at the Convention and who were the people responsible for each plan? Just a minute! Have you asked us all your questions? What have YOU done to find the answers? We
3. ### Lingusitics

Hello everyone!! For these six sentences, I have to explain what determines whether the sentence is grammatical or not 1) Both the students were studying. 2) The students were both studying. 3) They were both studying. 4) *Both
4. ### Studying tactics

Hi, I'm a senior in hs. my AP US history (2) teacher gives us ridiculously specific questions on our test. I read the chapter over and over again like 4 times and I still end up getting a 60% how can I improve my studying
5. ### English

A team of explorers ___________ the ocean floor. A.were studying B.are studying C.have been studying D.has been studying I think it is D...?
6. ### Social Studies

Please review the question and check my answer below. Thank you tutors. Q: Which of the Big 5 companies were started by missionaries or their sponsors? My answer: Alexander & Baldwin & (and) Castle & Cooke. I also got my answer
7. ### Science

1.Which of the following is a good study habit? A.maintaining a positive attitude ** B.waiting until the last minute to start on an assignment C.listening to the television while studying D.studying when you are tired 2. Your
8. ### Math

In a group of 500 students, 150 are studying physics, 220 are studying biology, and 100 are studying chemistry. At least 25 students are studying more than one of these sciences. What is the greatest possible number of these
9. ### English

Can someone check these sentences describing Mr Gradgrind? Thank you very much in advance. Mr Gradgrinds's appearance mirrors his beliefs. His eyes contain no light as the square forehead containing facts prevents him from seeing
10. ### math

Would this be a good resource for my students? This website? Yes, I believe so. We have several people who are very good at helping students with their math homework questions, from elementary school through college levels. Be

More Similar Questions