You have a 1.99-m-long stretched string with a mass of 19.3 g. when you oscillate the string at 440 hz., which is the frequency of the standard a pitch that orchestras tune to, you observe transverse waves with a wavelength of 15.7 cm traveling along the string. calculate the tension in the string.

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.