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How many seconds does it take a cheetah to catch a gazelle assuming, the gazelle notices...
A cheetah starts at x = 0 and a gazelle starts at x = 0.5 km. The cheetah starts running straight towards the gazelle at steady speed 80 km/hr (he’s tired) and, at the same instant, the gazelle runs straight away from the cheetah at steady speed 60 km/hr. Draw a reasonable graph with the position x vertically and the time t horizontally, including vertical and horizontal tic marks (you can use km and hr as the units if you...
uuIt BoSululely Peady to take it. It is a ti.. est and you cannot save your work and return back. You may attempt to take the midterm twice, however your final grade will be the average of the two if you do so! There are 16 multiple choice questions, 5 pts. each, Then you will have to answer two free response questions. Please type as many details as possible, so that I maybe able to give partial credit. Indicate your...
1 In many fluids, the flow velocity is observed to vary linearly from zero at the bottom to u at the top. Moreover, the magnitude F of the force acting on the top plate is found to be proportional to the speed and the area A of eaclh plate, and inversely proportional to their distance separation y The proportionality factor μ is the viscosity of the fluid. Using the above equation find out the dimensions of (10 pts.) A car...
3. A car is traveling at 55 MPH? a) What does it mean to say that this car is traveling at 55 MPH? b) How many miles the car will cover in 120 minutes? 4. You are driving at 18 m/s, and a cat runs out in front of your car. You stop rani which takes 3 seconds, and miss the cat. What is your deceleration? 5. A car traveling in a straight line with an initial velocity of 10...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 2.20 gallons of gasoline. Only 30% of the gasoline goes into useful work by the force that keeps the car moving at constant speed despite friction. (The energy content of gasoline is 1.3 ✕ 108 J per gallon.) (a) What is the force exerted to keep the car moving at constant speed? N (b) If the required force is directly proportional to speed, how many...
o Consider the renction 2A(g) + B(g) + 2(g) 2D(8) E(s) Suppose at time =0, the partial pressures of the reactant gases are 5 atm A, 10 atm B, and 8 atm C. After 20 minutes the partial pressure of A was found to be 1 atm. a) What is the initial total pressure in the flask at time=0? Bus P + P +++ b) What is the total pressure inside the flask after 20 minutes? Set up a start,...
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions. (2) You must use blank 8"x11" printer paper. (3) Begin each problem on a new page, and put your name on each page. Staple your pages together. 4) Only write on one side of the page. (5) You must write up your solutions independently (i.e. don't copy anyone else's solutions), using your own words and thought process. You must show all of your work....
stion Completion Status: QUESTION1 2 points a. Victoria spends $651 per month on rent. IiTher monthly take home pay s $1860, what percent d percent sign does she pay in rent? Be sure to label your response with a 10 points s QUESTION 2 Match the following conversions A. 1.5c 8.500 bs C. 16 pts D.0.75 Ibs E. 80 or 5 Ibs 12 1 oz 12 oz 025 ton 2 gal 2 points Sae A QUESTION 3 Save and S...
How does this article relate to the factors of productions in economics? From Music to Maps, How Apple’s iPhone Changed Business Ten years ago, hailing a cab meant waiving one's arm at passing traffic, consumers routinely purchased cameras, and a phone was something people made calls on. The iPhone, released a decade ago this month, changed all of that and more, sparking a business transformation as sweeping as the one triggered by the personal computer in the 1980s. Apple Inc.'s...
Many of the bones of the body have an English name as well as a medical name, i.e., skull (cranium). List as many of these as you can. for each multiple-choice question. 1. A cart of mass 4 kg experiences a constant acceleration of 3.0" What is the magnitude of the force exerted on the cart? A. 0.75 N B. 6.0 N C. 2N D3N 2. Displacement vector is 6.0 miles along the negative x-axis and a second displacement vector...