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The period-luminosity relationship for Cepheid variables was discovered by

What technique did astronomers use to make the first confirmed discovery of a planet around another star like the Sun?

The period-luminosity relationship for Cepheid variables was discovered by

With our current techniques, astronomers can typically only measure the minimum mass of a planet orbiting another star. To know the precise mass of the planet, they must also be able to determine

The instrument astronomers are now using to make the most precise measurements of stellar parallax we have ever had is

Which of the following dental restorative material is particularly susceptible to corrosion?

A twisting force is termed:

What could excessive expansion of a restorative material result in?

For questions you asked during online meetings, how satisfied are you with your co-instructor’s responses?

All survey responses (including personal information) will be kept strictly confidential. No personally identifiable information will be reported back to the requestor. Your responses are combined with those of many others and summarized in a report to protect your anonymity. The data will be reported only in the aggregate and no individual will be identified. In rare circumstances, the Director of Continuing Education may access individual student information in order to address any specific concerns.   The following questions are about your co-instructor for this course. Please answer these questions only as they relate to your assigned co-instructor, even if you interacted with other co-instructors during the course (e.g., you attended another meeting as a make-up, a scheduled meeting had a substitute, etc).