Ultrasound of intensity 1. 50\times 10^2~\mathrm{w/m^2}1. 50×10 2 w/m 2 is produced by the rectangular head of a medical imaging device measuring 3. 00 by 5. 00 cm. What is its power output?.

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The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?