Physics question and answers for July 17, 2023
- Q Problem 4. Suppose that 70% of a radioactive substance is goneafter 6.43 years. What is the half life of this substance?Question 1. What is N(t)/N0 in this problem? (2points)a. unknownb....
- Q Some particles are created via collisions. For instance, pionsare created via collisionswith high energy protons and carbon, which releases neutrons andpions (which theythemself, decay into muons).Suppose two particles with momenta...
- Q A block of mass m=2kg can slide down a frictionless 53 degreeincline but is connected to a pully of mass M=4kg and radiusR=0.5m. The pulley may be treated as a...
- Q You are being asked to determine if there is any oxygen presentin an unknown mixture of gas. You know that when oxygen is made toglow by placing a large potential...
- Q Ernest Rutherford (the first New Zealander to be awarded theNobel Prize in chemistry) demonstrated that nuclei were very smalland dense by scattering helium-4 nuclei (4He) fromgold-197 (197Au). See the figure...
- Q There was a demonstration I did our Zoom class with a fallingmagnet in a simple copper tube. Explain, in detail, the physicsbehind why the magnet slows its descent through the...
- Q What are some ways to store energy from variable cleansources
- Q The position vector F(t) of a moving particle at time t[s] isgiven by F(t)= e^t sin(t)i-j+e^t cos(t)k a) Calculate theacceleration a(t). b) Find the distance traveled by the particle attime...
- Q Experiment (1)Measurements and UncertaintiesStudent Name:.....................................................................​Experiment’s Objectives………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………ResultsPart 1: Determination of p1) Tabulate your readings in Table (1.1)d (cm)c (cm)11.6655.22521.7555.55533.68511.56542.7558.56552.6758.355average2) Calculate π from the averages.    ………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………Part 2: Determination of density1) Tabulate your...
- Q For polymer structure analysis with purposes givenbelow; how microscopy (light and/or electron) can be used? How canyou get information? Which method/tool you choose to determine thegiven properties? Please explain in...
- Q Assume a square well as a shape of the scattering potential of anucleus ? with ?−wave neutrons of a potential depth of ?_0=50 MeVand a potential radius of ?=6.5 fm.a)...
- Q The neutral Helium atom is made of a nucleus (containing twoprotons and two neutrons) and two electrons. The electrons have anaverage separation from the nucleus of r =31pm. Note: 1pm=...
- Q I need full report for \"uncertainties & Error Analysis\"included the summarized background, theory, procedure 5 steps, andconclusion\"
- Q 1. What is reactance and why is different from resistance?2. What is a phasor diagram and how is it useful? (No Star Trekanswers, please.)
- Q please I don't really know how to start answering this questionI really need to understand itplease show the work with a clear handwritingA collision in one dimensionA mass m1 =...
- Q 1- What is the conclusion of the first video activity(Electric Force vs. Charge)?Explain your answer by referring tothe graph “Force vs. Charge†that you created in Part H of thefirst...
- Q The words \"entropy\" and \"the second law of thermodynamics\" areoften used interchangeably, but there is a difference. Describe thedifference between “entropy†and “the second law ofthermodynamicsâ€.
- Q 3. a) Draw a schematic diagram of anX-ray diffractometer. [4 marks]b) The results of an X-ray diffraction experiment that usedX-rays of wavelength 0.154 nm show the first 6 peaks at...
- Q Nuclei of the same mass number but different Z are isobars. (1)Calculate the bonding energies per nucleon for the isobarsboron-12, carbon-12, and nitrogen-12. (2) In which of the terms ofthe...
- Q In 1963, Maarten Schmidt of the California Institute ofTechnology found the most distant object that had ever been seen inthe universe so far. Called 3C273, it emitted electromagneticradiation with a...
- Q Writing Task1. in what ways are three temperature scales the same ?2. In what ways are the three temperature scales different ?3. At approximately what temperature would Celsius andFahrenheit thermometer...
- Q A long pair of isolated wires provides a device with 12.5Adirect current as input / output. If the diameters of the wires arenegligible, but if there is a 2.8mm gap...
- Q 2. The Cahora Bassa dam, located in Mozambique, is the highestdam in Africa. The hydroelectric facility within the dam generatesan average 1,925 MWe. Nearly all of this electricity is exported...
- Q 1. Why is the safety feature of a garage door opener mountedabout 10 inches off the floor rather than higher?2.Why do photons have to be massless?
- Q a) Describe in less than 300 words ONE type of apparatus (usinga diagram if it helps) that is used to collect diffractioninformation using X-rays. Include in your answer why this...
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