2. In a Compton scattering experiment, an x-ray photon scatters through an angle of 21.4° from a free electron that is initially at rest. The electron recoils with a speed of 1,880 km/s.

(a) Calculate the wavelength of the incident photon.

(b) Calculate the angle through which the electron scatters.

When cells migrate, they exert forces on substrate surfaces. Design an experiment to study the magnitude of the forces.Please provide detailed description for each step. (Hint: label the surface, detect surface deformation, reference: Kong H J et al. PNAS 102:4300 (2005))

1. (a) List the sample space in the experiment "roll two dice - a red die and a white die." (Hint: Use a table)

(b) Find the probability that the sum of the numbers on the two dice is less than seven.

(c) Find the probability that the sum of the numbers on the two dice is odd.

I want to build a thin flexible rubber sheet, embedded with piezoelectric materials to convert mechanical energy into electrical energy.

Can anyone please tell me how i can proceed with this experiment?

or if there is any online supplier where i can buy from?

High-resolution peripheral quantitative computed tomography

1. How does this technique work and what does it measure?
2. What equipment is required for this technique?
3. How is the experiment/measurement performed?
4. What do the typical results look like? (you may want to include images here)  

Why is the Frank Hertz experiment different from the photoelectric effect?  For common Blackbody experiments, the Hg lamp used is nearly white, made up of several intense spectral lines.  Why is the Franck?hertz emission primarily blue?  Does this correspond to the expected energy loss?

During an extraction experiment containing benzoic acid, biphenyl, and 2-napthol. What would happen if you extracted with sodium hydroxide first and sodium bicarbonate second? What organic species would be in the hydroxide extraction? (Please type is possible, the previous answer to this question is unreadable)

A 22.05 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 21.56 grams of CO₂ and 4.413 grams of H₂O are produced.

In a separate experiment, the molecular weight is found to be 90.04 amu. Determine the empirical formula and the molecular formula of the organic compound.

The optical Tachometer

a- Can the SIS optical tachometer be used to determine the direction of rotation?
b- If number of slots in the disc is changed what effect would this have on the results?
c- Discuss sensor characteristics as linearity, repeatability, accuracy and sensitivity.
d- What are the sources of errors in this experiment?