Amagnetic field is uniform over a flat, horizontal circular region with a radius of 1.50 mm, and the field varies with time. initially the field is zero and then changes to 1.50 t, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 130 ms. what is the average induced emf around the border of the circular region?

Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?