Consider an acoustic point source of frequency 1kHz that creates a sound level of 110 dB in your ear.
(a) What is the intensity of the sound source in your ear? (1 mark)
(b) By how much do air molecules typically move in your ear as a
Assult
of the sound?
Consult the PHYS-1130 formula sheet for relevant constants. (2 marks)
(b) Assuming that you are 10 m away from the sound source, what is its power? (1
mark)

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

Coal contains energy. a. light b. kinetic c. chemical d. mechanical

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.