A proton in a linear accelerator has a de Broglie wavelength of 142 pm . What is the speed of the proton? Express your answer with the appropriate units.
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- 5. The helium atom consists of two electrons in orbit around a nu- cleus containing two protons. The part Vee of the the Hamiltonian is given by: Vee Anco ( +) Vee = (+). 2 r2 h2 2m O Vee =- (Vỉ + V}). O Ve = (E) (")Scenario: pouring liquid nitrogen (-196°C or – 320 °F) on a balloon . Link: https://www.youtube.com/watch?v=al5f9q845q0 List the variables (P, V, T, n) as either increasing, decreasing, or staying constant in this experiment. (2 of them will be constant) increasing decreasing staying constant Before Particle Picture After Particle Picture Time in video: 11 seconds Time in video: 30 secondsSubject: Differential Equations Professor Utonium is experimenting on Chemical X which initially weighs 65.73 grams. He left to buy some groceries and when he returned after 82 mins, it has decreased by 29.09 grams. Find the half-life of Chemical X. Round your answer to 2 decimal places.
- The artificial element 114 (flervium) was created in in Russia in 1998. It has an atomic number of 114 and a lifetime of less than a minute. What is the electronic configuration of this element (enter in the following format with no superscripts: [X] ys2yp3) ?_______| Portal Class Score Detail ASTRONOMY 4B(8A)- X 57vBxxhRY5wLzVymZP/view In the equation PS+ X, the particle represented by X is 1. А. Не В. n С. н D. e 2. The structure of an alpha particle is the same as a A. lithium atom B. neon atom C. hydrogen nucleus D. helium nucleus5G 9:02 bbhosted.cuny.edu Remaining Time: 42 minutes, 20 seconds. v Question Completion Status: What if a new element, Tyserium (Ty), was discovered and was found to have two isotopes, Ty-331 (atomic mass = 331amu, % Abundance =35% abundant) and Ty-337 (atomic mass = 337 amu, % abundance = 65%). What is the average atomic mass of Ty as it would appear on the periodic table ? ) а. 335 Ob. 334 Oc. 332 Od. 336 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Save and Submit + 17
- Complete the given table. Round half-lives to one decimal place and values of k to six decimal places,A The Roswell Incident G Physics STAAR Review - Google Sli. G Earth and Space STAAR Review -. G Chemistry STAAR Review- ew en - Chemistry STAAR Review ☆ D O O Present * Shar v Insert Format Slide Arrange Tools Add-ons Help Last edit was 2 hours ago T O - O - 田 Background Layout- Theme Transition I 1 IN 2 I 3 I 4 1 S I 6 7 8 9 Fill in the missing masses below to show that each chemical equation is following the Law of Conservation of Mass. Cao + CO2 CaCO3 2Ag + H2S Ag2S + H2 20 g + 70 g = 15 g + 30 g = lg+ 10 g Which of the following models best demonstrates a balanced chemical equation? a) c) 8-8-8 0-8-8 b) d) Click to add speaker notes + EPIC MacBook Air g88 4 %2# & * 3 4 5 6 8 E Y P F G H J K C V Bow Help 79% Tue 9:36 AM A docs.google.com he Roswell Incident G Physics STAAR Review - Google Sli. G Earth and Space STAAR Review -.. G Chemistry STAAR Review - Goog eview O Present S Share rrange Tools Add-ons Help Last edit was seconds ago Background Layout - Theme Transition I 1 2 I 3 I 4 1 5 6 9 I Fill in the missing information to complete the chart. Check One Box Check One Box Fill out each of these boxes. Total # of Total # Elements of Atoms Chemical Chemical Element Compound Total # of Substance Symbol Formula Molecules H2O 3 1 Cu4 CaCO3 1 Zr Ca3(PO4)2 2CO 2 4 2 speaker notes )山T EPIC MacBook Air E5 F6 F7 F8 F9 F10 F11 F12 % & * +
- Chemistry What is the maximum velocity or 'v' in m/s, of the emitted electron in D? (recall that Ek = 1/2 mv2). Given: Ek=0.23evThe velocitites of an electron (me = 9.1 · 10-31 kg), a proton (mp = 1.7.10-27 kg), a ladybug (mbug = 50 mg) and the moon (mmoon = 7.3 1022 kg) could be determined with an uncertainty of velocity of Av = 1.8 mm/s. Calculate the uncertainty of space Ax.(a) On the basis of nuclear shell model, arrange the nucleons in various shells/orbits and obtain the spectroscopic notation of a nucleus with 20 nucleons for l= 2. (b) decavs the m cta C. e allo tum 7. parity P an! reuS T Spe vid gar