CIVL 4046 Fluid Mechanics Tutorial No. 1 2.15 A team is designing a helium-filled balloon that will fly to an altitude of 24‚000 m. As the balloon ascends‚ the upward force (buoyant force) will need to exceed the total weight. Thus‚ weight is critical. Estimate the weight (in newtons) of the helium inside the balloon. The balloon is inflated at a site where the atmospheric pressure is 0.89 bar and the temperature is 22°C. When inflated prior to launch‚ the balloon is spherical (radius 1.3 m) and
Premium Force Viscosity Fundamental physics concepts
Physics Formulas: Mechanics Mechanics is the oldest branch of physics. Mechanics deals with all kinds and complexities of motion. It includes various techniques‚ which can simplify the solution of a mechanical problem. Here are some of the often required physics formulas falling in mechanics domain. Motion in One Dimension The physics formulas for motion in one dimension (Also called Kinematical equations of motion) are as follows. (Here ’u’ is initial velocity‚ ’v’ is final velocity‚ ’a’ is
Free Force Classical mechanics Mass
SAMPLE PROBLEMS: 112- Topic 1: ELECTRIC FORCES & ELECTRIC FIELDS. 1) Charges of - 6 and + 4 nC are 3 m apart. Determine the force they exert on each other‚ and the electric field at a point midway between them. |Solution: This is an electrostatics problem (stationary charges). Since the charges|[pic] | |are of opposite sign‚ they will attract each other. The forces are indicated in the|
Premium Electric charge Fundamental physics concepts Electromagnetism
Page 12 1 a) Between t = 30 and t = 45 mins b) 7.5 mins c) i) distance travelled = area under graph between t = 0 and t = 12½ mins ii) average speed = total distance travelled total time for journey = total area under graph 60 mins 2 a) ∆v = 32 m/s a =10 m/s² t = ∆v = 32 = 3.2 s a 10 b) 3 a) OP – constant acceleration PQ – constant acceleration (greater than OP) QR – constant speed RS – constant deceleration b) O and S c) 6 m/s d) 70 s e) Total distance travelled = area under
Premium Force Specific heat capacity Energy
Everything is relative or objective Nothing is really as it seems to us and all things are subjective to the observer. Everything is relative to each person from the viewpoint. Comparative readings‚ of two almost unimaginably accurate precision atomic clocks located on fast moving spacecraft and airplanes and on earth‚ have detected this strange skewing of time and proved Einstein’s theory of relativity to be fact. Stop all the clocks in the universe and movement will continue unaffected
Premium Time General relativity Special relativity
Name _____John Munro___________________________ Electric Fields – Lab 16 Go to http://phet.colorado.edu/simulations/sims.php?sim=Charges_and_Fields and click on Run Now. Part 1: What is an equipotential line and how is this simulation related to work and energy? 1) Turn on “Show Numbers” 2) Place a positive 1 nano-coulomb charge near the center of the screen. 3) In the lower left of the screen is a meter for indicating electric potential‚ in volts‚ created by the charge that you
Premium Electric charge Force Electromagnetism
REFRIGERATION CYCLES Carnot Cycle We start discussing the well-known Carnot cycle in its refrigeration mode. Figure 1: Carnot Cycle In this cycle we define the coefficient of performance as follows: COP = qL TL = w TH − TL (1) Which comes from the fact that w = qH − qL (first law) and qL = TL Δs ‚ qH = TH Δs (second law). Note that w is also given by the area of the rectangle. Temperature differences make the COP vary. For example‚ the next figure shows how COP varies with
Free Gas Temperature Thermodynamics
Most people have heard of the more common states of matter: solids‚ liquids‚ and gases. Fewer people know that there are actually more states of matter‚ including the fourth and fifth states: plasma and the Bose-Einstein Condensate‚ or BEC. The plasma and Bose-Einstein Condensate states of matter‚ while having some similarities‚ are two completely different forms of matter and connect with the Kinetic Molecular Theory in differing ways. Plasma is the fourth state of matter. It’s a fluid‚ gas-like
Premium Atom Molecule Fundamental physics concepts
Newton’s Laws of Motion and Gravity Define mass‚ weight‚ force‚ and acceleration. Mass – A measure of the total amount of material in a body‚ defined either by the inertial properties of the body or by its gravitational influence on other bodies. It is proportional to‚ but not the same as‚ its mass Force – A quantitative description of the interaction between two physical bodies‚ such as an object and its environment. Force is proportional to acceleration. Acceleration – A vector quantity that
Premium Electromagnetic radiation Electron Light
6 05 Tsunami Nicolai Kortendick 1. The web site presents extensive information regarding tsunamis. Survey the site. A. Select the five facts about tsunamis that were the most interesting or surprising to you. Make a list of your facts. 1. A tsunami is made up of a series of traveling ocean waves of extremely long wavelength. 2. They are triggered by earthquakes and undersea volcanic eruptions and deep sea landslides. 3. The wave shape changes and the height increases as
Premium Ocean Wavelength Wave