Dimensional Analysiserson driving a car is texting on their cell phone. The car is traveling at 35 mi per hourmihr). Suddenly a child steps into the road one house away, 30. feet in front of your car.Because the driver is not paying attention, it takes the driver 1.5 seconds to react beforehitting the brake. How many feet will the car travel during these 1.5 seconds, before thedriver even begins to slow down? Is the child safe?(Note: This is not an acceleration problem. Report answer to two significantfigures) (5280 ft = 1 mile)%3D

Given the speed of the car = 30 mi/hr Given the distance between the child and car = 30. ft time to…

Answered: Dimensional Analysis erson driving a…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.102QE

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In Active Example 3-29 you calculated that you would have to work six weeks to earn enough money to buy a 1082.49 television. You would be working five shifts of four hours each at 9.25/hr. But, alas, when you received your first pay check, you found that exactly 23 of your earnings had been withheld for social security, federal and state income taxes, and workers compensation insurance. Taking these into account, how many weeks will it take to earn the 1082.49?
On December 1, 1783, Jacque Charles became the first human to pilot a non-tethered hydrogen balloon. He flew the balloon for fifteen miles and stayed in the air for a total flight time of 45 minutes. The balloon was made of silk coated with a thin layer of natural rubber and had a diameter of 27 feet. He generated the hydrogen gas needed to lift the balloon by mixing a large amount of iron with aqueous sulfuric acid. If he used 1 x 103 lbs. of iron and excess sulfuric acid, how many liters of hydrogen gas were made? Fe(s) + H2SO4(aq) = FeSO4 (aq) + H2(g)
CH,N, Et,0, CH,Cl, 30 min HO,
A jogger runs a mile in 13 minutes. Calculate this speed in meters/sec. (1 mile = 1.609 km) m/sec %3D
Carl is approaching the Canadian border on a trip from Vermont to Montreal, Canada, and the gas in his tank is low. He wants to determine if it would be more cost efficient to buy gas before or after crossing the border. He consults Gas Buddy and finds that the cost of gas in the US is 2.45 USD per gallon, while just across the border it is $1.40 CAD per liter. The currency exchange rate is $0.750 USD per $1.000 CAD. How much more gas (in gallons) will he get for $20 USD if he buys the gas before crossing the border instead of buying it in Canada? (1.000 liter = 0.264 US gallons).
15. You are calibrating a buret that is graduated to 0.1 mL. The measured volume delivered is 10.88 mL at 24.000°C. The calculated actual volume based on the mass of water is 10.859 mL. IMPORTANT: The actual volume is reported to 2 decimal places since the buret volume is reported to 1/100 of a mL. The buret error (mL) is: -0.02 0.02 -0.021 0.021
Chlorite is reduced by bromide in acidic solution according to the following balanced equation: C10₂ (aq) + 4Br- (aq) + 4H+ (aq) → Cl(aq) + 2Br2 (aq) + 2H₂O (1) A[Br₂] If At A[C10₂] At during the same time interval? Express your answer to two significant figures and include the appropriate units. = 4.1x10-6 M/s, what is the value of A[C10₂] At Part B = O Rate = μA Value Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Units What is the average rate of consumption of Br during the same time interval? Express your answer to two significant figures and include the appropriate units. μАA Value Units ? ?
iffrs T000 ml 1 liters D. 3.9 X 1014 sec = years
A lung-full of air (350 cm3) is exhaled into a spirometer, a device that measures lung capacity. If the air is exhaled from the lungs at a pressure of 1.08 atm at 37°C, but the machine is at ambient conditions of 0.958 atm and 23°C, what is the volume of air measured by the spirometer in cubic centimeters? Provide an answer correct to 2 significant figures. Do not use scientific notation. Do not include units in your answer. For example, if you calculate that the correct answer is 514 cm3, simply type "510" in the box without the quotation marks (") or units as part of your answer.
A cylinder measuring 2.9 cm wide and 3.5 cm high is filled with gas and the piston pushed down with a steady force. piston cylinder gas Calculate the force on the piston if the pressure in the gas is measured to be 879. kPa. Write your answer in units of kilonewtons. Be sure your answer has the correct number of significant digits. |kN
Convert 670mmHg x ft^3 to metric horsepower x h
The following calculation represents what the worker did prior to the flight: 7,682 liters x 1.77 lb/L= 13,597 lb (where d=1.77 lb/L) 22,300 kg - 13,597 kg= 8,703 kg = mass of additional fuel required 8,703 kg / (1.77 lb/L) = 4,917 = volume of additional fuel required Based on your calculations above and the worker’s calculation, (1) where was the mistake made? And (2) how much more fuel would have needed to be added than the worker added to successfully complete the flight ?

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