# Posts by sher

Total # Posts: 13

**chemistry**

At what temperature does the rms speed of O2 molecules equal 475 m/s?

**Physics Help ASAP**

so which one is it? all of them are on both

**Physics Help ASAP**

Can you give me the equation instead i'm still confused?

**Physics Help ASAP**

A car horn is pitched at 520 Hz. The car travels along a straight road at a speed of 25 m/s. towards an observer walking at 2 m/. The speed of sound is 334 m/s. Calculate the frequency heard by the observer when: (a) the car is moving towards the observer

**Literacy**

What are the subject headings for the 2002 edition of Invisible Man

**Grammar**

prefix - sub root - scrib suffix - e

**physics**

yeah you just do it

**Statistics**

One sample of n=20 scores has a mean of M=50. A second sample of n=5 scores has a mean of Mean=10. If the two samples are combined, what is the mean

**dictation**

could you please hold the door open for me?

**College Physics**

Vector Algebra let A vector=6ihat+3jhat, B vector= -3ihat-6jhat D vector=A vector-B vector what is D vector? Thank You!

**Physics**

r vector=(340m, 39 degrees below positive x-axis) What is rx and ry? I have no idea how to do or approach this problem, anyone please help and explain how to do this? Thank you!

**literature**

Poetry part 2 01-26-12 1. B Correct 2. B Correct 3. B Correct 4. B Correct 5. D Correct 6. C Correct 7. A Correct 8. D Correct 9. C Correct 10. C Correct 11. D Correct 12. C Correct 13. A Correct 14. C Correct 15. C Correct 16. A Correct 17. C Correct 18. D Correct 19. A ...

**grammar**

could you please hold the door open for me?

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