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Hey everyone ☺ I've been considering a degree in Oral Health Therapy (to become a hygienist or therapist ) and was wondering if anyone who has done that degree/worked in the dental field has any advice on what to expect from the course/career and any pros and cons. Thanks☺

Textbook Question: The velocity of a particle is given by v=1/x cms^-1 and the particle is 3 cm to the left of the origin after 3s. Find the equation of the particle's displacement with respect to time. Answer given as: x= -(4t-3)1/2 Just not sure how to get there... Thanks :)

Question: According to Boyle's law, the pressure of a gas is given by the formula P=k/v, where k is a constant and v is the volume of the gas. If k=100 for a certain gas, find the rate of change in the pressure when v=20. Answer: -1/4 I understand that I have to derive dP/dv....but how do...