help asap ftalong a straight, level road decelerates at a constant rate of 22ftwhen the brakes are applied.A bus travelling at 66 -secSec2Determine the time when the bus comes to a stop.(A) 0.3 sec(В) 9 sec0.9 sec3 sec

From the first equation of motion v=u+at .....(1) , where u is the initial velocity ,v is…

Answered: A bus travelling at 66 along a…

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

Chapter6: Rates Of Change

Section6.2: Rates Of Change For Other Functions

Problem 15SBE

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Van der Waals Equation In Exercise 18 at the end of Section 2.3, we discussed the ideal gas law, which shows the relationship among volume V, pressure p, and temperature T for a fixed amount 1 mole of a gas. But chemists believe that in many situations, the van der Waals equation gives more accurate results. If we measure temperature T in kelvins, volume V in liters, and pressure p in atmosphere 1 atm is the pressure exerted by the atmosphere at sea level, then the relationship for carbon dioxide is given by p=0.082TV0.0433.592V2atm What volume does this equation predict for 1 mole of carbon dioxide at 500 kelvins and 100 atm?Suggestion: Consider volumes ranging from 0.1 to 1 liter.
TEST YOUR UNDERSTANDING Suppose we start with 9 milligrams of pollutant per liter of water, as in the example. Assume that the cleaning process decreases the concentration of pollutant by 30 each hour. What is the pollutant concentration after each of the first 3 hours? EXAMPLE 1.9 PURIFYING WATER Water that is initially contaminated with a concentration of 9 milligrams of pollutant per liter of water is subjected to a cleaning process. The cleaning process is able to reduce the pollutant concentration by 25 each hour. Let C=C(t) denote the concentration, in milligrams per liter, of pollutant in the water r hours after the purification process begins. Part 1 What is the concentration of pollutant in the water after 3 hours? Part2 Compare the results predicted by the verbal description at the end of each of the first 3 hours with those given by the formula C=90.75t. Part 3 The formula given in part 2 is, in fact, the correct one. Use it to find the concentration of pollutant after 414 hours of cleaning.
Air Temperature As dry air moves upward, it expand and, in so doing, cools at a rate of about 1°C for each 100-meter rise, up to about 12 km. (a) If the ground temperature is 20°C, write a formula for the temperature at height h. (b) What range of temperatures can be expected if an air plane lakes off and reaches a maximum height of 5 km?

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A bus travelling at 66 along a straight, level road decelerates at a constant rate of 22 sec when the brakes are appli sec2 Determine the time when the bus comes to a stop. A) 0.3 sec B 9 sec 0.9 sec D) 3 sec