Blue whales communicate with infrasound and insects communicate with ultrasound. Find (a) the SHORTEST infrasound wavelength a blue whale can make in 0°C (icy) water (Hint: If you want a short wavelength, do you want a higher or lower frequency for a given wave speed?) and (b) the LONGEST ultrasound wavelength an insect can make in (room temperature) air.

You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u.s. legal proceeding.)

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig