In the Compton scattering experiment shown in the figure, a monochromatic beam of X-rays strikes a target containing free electrons.  Scattered X-rays are detected with a wavelength of 2.50 × 10–12 m at an angle of 45° away from the original beam direction.  What is the wavelength of the incident monochromatic X-rays?  Note:  The mass of an electron is 9.11 × 10–31 kg.

What is a common complication of pancreatic carcinoma?

The presence of oligoclonal bands in CSF is associated with:

What is the primary site of cerebrospinal fluid (CSF) production?

The half-life of a particular isotope of iodine is 8.0 days.  How much of a 10.0-g sample of this isotope will remain after 30 days?

Which of the following are required for a subset H of a vector space to be a subspace. 

Photo, a free-lance photographer, took a picture of Player in front of Shoe Store.  Player was a nationally known amateur basketball star who had received much publicity in the press.  At the time, the window display in Shoe Sore featured “Jumpers”, a well known make of basketball shoes.  Photo sold the picture, greatly enlarged, to Shoe Store and told Shoe Store that Photo had Player’s consent to do so and that Player had also consented to Shoe Store’s showing the enlarged photograph in their window.  Shoe Store made no effort to contact Player to ascertain whether indeed Photo had Player’s consent as represented.  In fact, Player did not even know that Photo had taken the photograph.  Shoe Store put the enlargement in their window with the display of “Jumpers” shoes. The college that Player attended believed that Player had intentionally endorsed Shoe Store and Jumpers shoes and the college thus cancelled Player’s athletic scholarship.  If Player asserts a cause of action based upon defamation against Shoe Store, will Player prevail?

Which condition is indicated by high bilirubin in amniotic fluid?

Paula bought a used car from Dick, a used car dealer.  Knowing them to be false, Dick made the following statements to Paula prior to the sale: This car has never been involved in an accident. This car gets 25 miles to the gallon on the open road. This car is as smooth-riding a car as you can get. If Paula asserts a claim against Dick based on deceit, which of the following statements made by Dick would support Paula’s claim?

Which one of the following experiments provides evidence that light consists of particle-like entities?