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In 2001 , the first iPodTM by Apple had a rated battery life of 10 hours (h) to run audio files. The 6th model, introduced in 2009, had rated battery life of 36 hours [h] to run audio files. If the average song is 3.5 minutes [min], how many more songs can you listen to using the 6th model iPod rather than the original iPod on a single battery charge?
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- Your choices from the drop down menu are "1, 2.5, and 3.5" Please see both images for reference. Thanks!arrow_forward⦁ “God himself could not sink this ship” This is an advertisement for the Titanic, produced in the early 1900s. However, after colliding with an iceberg at dawn on April 15, 1912, two rivers were formed, and out of the 2,200 people on board, 1,500 people, including the captain, sank with the ship. According to a later investigation, the “temperature change theory” (DBTT theory) was the most promising cause of the sinking. Give a brief guess of the cause of the ship's sinking in relation to temperature.arrow_forwardFrom a fundamental point of view, there are two distinct ways to describe motion. Match the movement description with the movement name. Lagrangian [ Choose ] Eulerian [ Choose ] Newtonian [ Choose ]arrow_forward
- solve the proble regarding otto cycle and fill the unknowarrow_forwardIn order to fnd the specifc heat c of an unknown substance, you place 75 g of the substance in a 30 g copper calorimeter that contains 65 g of water, all initially at 20 °C. You then add 100 g of water at 80 °C, and measure the fnal temperature of the system to be 49 °C. Assuming no heat is lost to the environment, what is c? [Answer: c = 2200 J/kg. K] 즈arrow_forwardFIGURE 1: Wind tunnel experiment to measure how the force of air resistance depends on velocity. A free-falling object such as a bungee jumper is subject to the upward force of air resistance. We assumed that this force was proportional to some power b of velocity as in Fu=CaVb where Fy = the upward force of air resistance [N = kg m/s2 ], Ca = drag coefficient (kg/m), and V = velocity [m/s]. An individual is suspended in a wind tunnel and the force measured for various levels of wind velocity. The result might be as listed in Table 1 V (m/s) 15 30 45 60 75 90 Fu (N) 65.5 227.9 472.9 793.7 1186 1646.7 Table 1: Experimental data for force (N) and velocity (m/s) from a wind tunnel experiment. Find least sqaures approximation Fy=C,Vb to the data given in Table 1.arrow_forward
- I was going over the equations for the notes in class and I had a thought. Based on the equations in the image, you could get negative propellant mass. So, I coded it in matlab and I got negative mass. How is that possible? I think I used practical values for the velocity and mass ratio and so on. Did I do something wrong?arrow_forwardChrome File Edit View History Bookmarks People Tab Window Help McGraw-Hill Campus - ALEKS Science - CHM1045 GEN CHEM 1 BLENDED 669113 A bconline.broward.edu/d21/le/content/466883/fullscreen/12868783/View McGraw-Hill Campus - ALEKS Science O GASES Interconverting pressure and force A chemistry graduate student is designing a pressure vessel for an experiment. The vessel will contain gases at pressures up to 470.0 MPa. The student's design calls for an observation port on the side of the vessel (see diagram below). The bolts that hold the cover of this port onto the vessel can safely withstand a force of 2.80 MN. pressure vessel bolts side View port Calculate the maximum safe diameter w of the port. Round your answer to the nearest 0.1 cm. O cm Explanation Check O2021 McGraw-Hill Education. All Rights Reserved. Terms of Use FEBarrow_forwardA structural member 10 cm long must be able to support a load of 50,000 N without experiencing any plastic deformation. Given the following data for brass, steel, aluminum, and titanium, find weight of the lightest alloy in accordance with these criteria. Answer the weight in grams only. Alloy [Brass] [Steel] Ultimate Yield tensile Density strength strength (grams/cm³) (MPa) (MPa) 415 600 860 800 [Aluminum] 310 [Titanium] 550 8.5 700 7.9 435 2.7 4.5arrow_forward
- Revisit Example 6 from your Module 4 notes. Consider the well-insulated, rigid tank having a volume of 10 [ft']. Previously, it contained saturated water vapor at 212°F at state 1. The water was rapidly stirred until the pressure was 20 [lbfin'). In class we showed that the temperature at state 2 was 445°F and the work done during this process was -31.3 (Btu]. Now, if insulation were removed from the tank, and the water is cooled at constant volume from T2 = 445°F to T3= 300°F without stirring the water, determine: a) The pressure at the state 3 in [Ibfin*), and b) The heat transfer during the process in [Btu).arrow_forwardEngr 215 Matlab Fahrenheit to Celsius using multiple statements Given a Fahrenheit value temperatureFahrenheit, write a statement that assigns temperatureCelsius with the equivalent Celsius value. While the equation is C = 5/9 * (F - 32), as an exercise use two statements, the first of which is "fractionalMultiplier = 5/9;"]arrow_forwardI need the answer as soon as possiblearrow_forward
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