An astronomical telescope has an angular magnification of -184 and uses an objective with a focal length of 48.0 cm. What is the focal length of the eyepiece?
Write medical terms for the following layman’s terms. Fill in the blanks.
shoulder blades _________
Infrasound is sound that is too low a frequency for our ears to detect. These sounds may cause nausea or feelings of discomfort. What is the wavelength of an inaudible 15 Hz15 \mathrm{~Hz}15 Hz infrasonic sound wave? The speed of sound in air is 343 m/s343 \mathrm{~m} / \mathrm{s}343 m/s.
The remotely-controlled robotic vehicle of previous problem is now connected to a 200-m tether which has a slight negative buoyancy in that a net downward force of 0.025 N per meter of its length acts on it. Determine the horizontal and vertical components of thrust which must be produced in order to hold the vehicle in the position shown. The vehicle itself is neutrally buoyant.
