Given the mass of the rubber in the balloon is 140 g what
(a) Calculate the buoyant force on a 2.00 L helium balloon.
N (upward)
(b) Given the mass of the rubber in the balloon is 1.40 g, what is the net vertical force on the balloon if it is let go? You can neglect the volume of the rubber.
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A 77.0 kg man floats in fresh water with 3.00% of his volume above water when his lungs are empty, Calculate the volume of air he inhales--called his lung capacity--in liters
Write the molecular equation for the combination of KNO3 (aq) and BaCl2 (aq). Include states of matter. I wrote 2KNO3 (aq) + BaCl2 (aq) ---> 2KCl (aq) + Ba(NO3)2 (aq) but it says it is wrong.
A company is considering purchausing an impact wrench for $1000 which wich has a maximum life of 4 years. The impact wrench can be sold for $600 at the end of oneyear and this salvage value decreases by $200 per year through year 4.
In the temperature range from 40 K to 90 K, a certain amount of liquid has a temperature dependent heat capacity that is given by Cp = 18.5 J K?1 + T × 0.24 J K?2. Determine the enthalpy change resulting from heating this sample from 58.0 K
Given the mass of the rubber in the balloon is 1.40 g, what is the net vertical force on the balloon if it is let go, Calculate the buoyant force on a 2.00 L helium balloon.
A small businessman planes to start a taxi -service and purchased a new car for #36000 with borrowed money at 15% compounded annually , his net income is $12000 per year and the salvage value of the car at the end of 4 years is $5000.
Describe the effect of an organization's strategic planning on the IT systems it uses. Address how strategic planning simplifies and complicates IT system development and use. This only has to be 200 words.
A perfect gas has a constant volume molar heat capacity of CV,m = 1.5× R, and a constant pressure molar heat capacity of Cp,m = 2.5× R. For the process of heating 4.50 mol of this gas with a 12 W heater for 400 seconds, calculate
A 7.0mW laser beam has a circular cross section with diameter 0.80mm, What is the maximum radiation pressure that this laser can exert on a mirrored surface
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