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A concert loudspeaker suspended high off the ground emits 38W of sound power. A small microphone with a 1.0 cm^2 area is 48 m from the speaker.
A. What is the sound intensity at the position of the microphone?
B. What is the sound intensity level at the position of the microphone?
One method for determining the amount of corn in early Native American diets is the stable isotope ratio analysis (SIRA) technique. What is the diameter of the semicircle
A 60 g ball is tied to the end of a 50 cm --long string and swung in a vertical circle. how far to the right does the ball hit the ground
A convex mirror has a radius of curvature whose magnitude is 59cm. The mirror is positioned on a horizontal optical bench with its front surface at 0cm. A 11.0cm long fluorescent lamp oriented vertically is placed at +106cm.
A 200 g ball on a 60 cm long string is swung in a vertical circle about a point 200cm above the floor. The tension in the string when the ball is at very bottom of the circle is 4.4 N.
A mass rests on top of the piston. The initial temperature of the system is 305 K and the pressure of the gas is held constant at 137 kPa. The temperature is now increased until the height of the piston rises from 23.4 cm to 27.0 cm. What is the f..
q1. stationary bicycle is raised off the ground and its front wheel m 1.3 kg is rotating at an angular velocity of
if an acoustic wave from an echo sounder on a ship take .30 seconds to reach the sea-floor and reflected wave returns to the boat in .30seconds how deep is the water.
Find the angular velocity of the earth as it spins on its axis and the tangential velocity of an object at the equator and one at the University of West Florida in Pensacola
Two positive point charges, each 17?C , lie along the x-axis at x = -0.12m and x = +0.12m . Find the electric field at the point (0, 0.21m)
A diffraction grating is made up of slits of width 420 nm with separation 1300 nm. How many maxima are there in the full diffraction pattern
A car completes one lap in a time of 19.3 s, with an average translational speed of 45.2 m/s. What is the radius of the track, and what was the car's average angular speed for that lap
q1. a 9.7 v battery is connected to a bulb whose resistance is 1.3. how many electrons leave the battery per minute?q2.
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