exam 3 physics

# exam 3 physics - Name P2601(Spring 2010 Individual Exam...

This preview shows pages 1–2. Sign up to view the full content.

Name:______________________________________________ P2601 (Spring, 2010) Individual Exam 3 "It is important to realize that in physics today, we have no knowledge of what energy is." Nobel Laureate R. P. Feynman "No one means all he says, and yet very few say all they mean, for words are slippery and thought is viscous." Henry Adams I. (72 pts) For the multiple choice only: No explanation is needed if your answer is correct. Justify your answer with well-chosen words or a formula and you may receive partial credit even for a wrong answer--but use your time wisely. 1. __ A spring-loaded toy dart gun is used to shoot a dart with a launch speed of 16 m/s. The same dart is shot a second time from the same gun, but this time the spring is compressed only half as far before firing. Approximately what is the launch speed this time, neglecting friction and assuming an ideal spring? A. 32 m/s B. 16 m/s C. 11 m/s D. 8.0 m/s E. 4.0 m/s 2. ___A viscous fluid flows through a long tube at an average speed of 40 cm/s. What would be the flow speed if the tube’s cross sectional area is doubled, but the pressure difference between the ends of the tube is unchanged? A. 320 cm/s B. 160 cm/s C. 80 cm/s D. 40 cm/s E. 20 cm/s F. 10 cm/s 3. ___ The figure shows a portion of a rope in which a disturbance XY travels in the direction of the arrow.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

exam 3 physics - Name P2601(Spring 2010 Individual Exam...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online