Amir observes Wave 1 and Wave 2 crashing into each other at two different intervals. His experiments produce
Wave 3 and Wave 4. Amir records his data in a table.
What is the best statement about the data collected in
Amir's table?
Wave
1
2
3
4
Amir's Waves
Information
Amplitude of 6 cm
Amplitude of 4 cm
Amplitude of 7 cm
Amplitude of 3 cm
O Wave 3 resulted from destructive interference, and
Wave 4 resulted from constructive interference.
O Waves 3 and 4 resulted from constructive
interference.
o Waves 3 and 4 resulted from destructive interference.
O Wave 3 resulted from constructive interference, and
Wave 4 resulted from destructive interference.

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?