I tried to integrate the deceleration equation, but it didn't If it has a velocity v=8 m/s and a position x=10 m when t=0, determine its velocity and position when t=4s. What is the acceleration of the train? how much farther will it travel before coming to rest, assuming the same acceleration ?Ī particle moving along a straight line is subjected to a deceleration a=-2v^3 m/s2. The speed of a train is reduced uniformly from 10 m/s to 5 m/s while covering a distance of 150 m. Sometimes conflict can be healthy critically discuss this statement ( the partial pressure of CO2 in air is 0.0003 ATM what is the solubility under atmospheric condition? Assume that CO obeys henry's law. The solubility of CO2 in water at 25 degree celsis and 1 atm is 0.034 mol/L. Two negative change you may encounter as a student or as an employee in the future What displacement must be added to a 50cm displacement in the +x-direction to give a resultant displacement of 85cm at 25 degrees (a) What is the potential difference across the headlight bulbs when they are the only load onĪ person walks 1 mile every day for exercise leaving her front porch at 9:00 am and returning to her porch at 9:25 am what's the total displacement of her daily walk? The headlights together present equivalent resistance 5.60 (assumed constant). from its base, what is the angle of elevation of the top?Ī boy of mass 50kg runs up a set of stairs of total height of 3.0m.find the work done against gravityĪn automobile battery has an emf of 12.6 V and an internal resistance of 0.0500. What is its speed at this instant?ĭiscuss 4 ways in which one's acceptance of responsibility can influence effective communicationĪ bamboo pole 20 ft. 36 mĪ car travels around a horizontal circular track of radius 45m.If the car increases its speed at a constant rate of 1.2m/s2 starting from rest, determine the time needed for it to reach an acceleration of 1.4m/s2. How long does a car with an acceleration of 2.0 m/s2 take to go from 10 m/s to 30 m/s a. In oneįind the accumulated value of an investment of 5000 at 9% compounded continuously for 6 years.ĭiscuss four ways in which one's acceptance of responsibility can influence effective communicationįind a real root of the equation cos(x) = 3x − 1 correct to four decimal places by using method of successive approximation. The concentration of NaOH is normally in the range of 3 to 6 M. One commercial method used to peel potatoes is to soak them in a solution of NaOH for a short time, remove them from the NaOH, and spray off the peel. what is the mole fraction of SiO2 and PbO in the glass? What is the average power output of a weightlifter who can lift 260 kg to a height of 1.9 m in 1.8 seconds?Ī sample of lead glass is prepared by melting together 20.0 g og silica (SiO2), and 80.0 g of lead oxide (PbO). Write as a single log : 3log2+2log8- 1/2 log4 ( simplify your answer) Ans What is the molality of an aqueous solution that is 10.0% ethanol, C2H5OH, by mass?
What mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepare a 0.0500 molal solution of ethanol?
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What are the differences between proteins produced in free ribosomes versus proteins produced in the rough endoplasmic reticulum?
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