(WCSU25) Shown below are a series of charged particles in an initial state (left) and a final state (right). The initial distance is given as “d”.  Select the system where the electrostatic potential energy decreases.   Data Sheet

16. Cell phones and other electronic devices with emit light by LEDs.  Screen time can be bad for our eyes due to the blue light emitted from these devices.   Blue light has a wavelength of approximately 425 nm. (WCSU25., 10 points) a. In one minute, roughly 175 J of energy are emitted from a cell phone screen.  How many photons are emitted in that time? b. How many moles of photons is this? c. We hear a lot about blue light warnings and can even purchase glasses with a blue light filter.   Explain in a few words why there aren’t similar concerns over red light.     Periodic Table Data Sheet   Enter the value of part b in the box below.   

(WCSU25) Consider a system under constant pressure. Which one of the following situations will always result in an decrease in the internal energy of the system?

Explain your choice in the question above about the energy of two charged particles in just a few words. (WCSU25)

15.  Pepto-Bismol contains bismuth salicylate (C7H5BiO4) and is used to treat a variety of symptoms including nausea, heartburn, upset stomach, indigestion, and diarrhea.  (WCSU25., 9 points)    a.  Calculate the mass, in grams, of a single atom of bismuth (Bi), MW = 208.98 g/mol.   b.  Calculate the number of bismuth atoms in one dose of Pepto-Bismol that contains 303 mg of bismuth.   Periodic Table Data Sheet   Enter the value for part b in the box below.   

Explain your choice in the question above about the energy of two charged particles in just a few words. (WCSU25)

A 90 year old male with PMH of HTN and osteoporosis reports Left hip pain since yesterday.  The patient reports he slipped and fell in the shower yesterday and has had the pain since then.  The patient reports he barely can put any weight on the left leg and had been using a chair for ambulation.  The patient denies previous injuries to the hip.  On exam, the patient is in mild painful distress.  The left leg appears mildly shorter than the opposite leg.  Left leg is slightly abducted and mildly externally rotated.  There is tenderness to palpation in the left groin and upper thigh area.  Decreased flexion at the left hip due to pain.  Distal thigh and knee non-tender.  Left knee with no effusion and with FROM.  Left calf and ankle with no tenderness and with FROM.  Left foot with no signs of injury and with FROM.  Rest of the exam unremarkable.  VS: BP: 145/90 mmHg Rt arm sitting; HR: 95 bpm; T: 98.6F; R: 16. Please provide differential diagnosis for this presentation (at least 4) AND what imaging would be indicated for this case.

True or False? Family planning has allowed women to advance in society, while also resulting in healthier infants, women, and children.

True or False? Family planning has allowed women to advance in society, while also resulting in healthier infants, women, and children.

We’re two-thirds through Summer A and our semester is wrapping up quickly!! You’re doing great so far!! Hang In There!! Hugs, Dr. G 🙂