4. What are three different advertising techniques that sponsors use to encourage you to buy a product? each technique.

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.