Why is a red pencil red - Study guides, Class notes & Summaries

Who was the chemist who observed his younger sister mix petroleum jelly and cold dust and apply eyelashes to the eye for a darker fuller look? - Answer: New York chemist T.L. Williams What country did eyelash extensions originate from? - Answer: Asia/South Korea What year did the U.S. patent office issue patent? - Answer: April 1923 What year was the bolder, dramatic false eyelashes popularized? - Answer: 1960s Who invented the permanent wave in Europe - Answer: Charles Nes...

HESI A2 Biology v2 Questions and Answers Latest 2023 1. A patient receives an antibiotic for symptoms of the flu. Why doesn’t the medication work? a. The medication is for a different type of flu. b. The medication is not suitable for treating the flu. c. The medication is not a strong enough dosage amount to cure the patient. d. None of the above The correct answer is B. Antibiotics are used for treating bacterial infections, but the flu is caused by a virus. Although symptoms can be si...

Why are alpha particles deflected by the nucleus? - Answer-Because both the alpha particles and the nucleus are positively charged and so the alpha particle is repelled. Is this statement (Dalton's Theory) true or false and why? "All atoms of an element are identical and have the same mass and properties." - Answer-False. Atoms of the same element can have different numbers of neutrons. What is the evidence that electrons are subatomic particles? - Answer-The nature of the electron is i...

The Associate CET Study Guide Exam 276 Questions with Verified Answers B+, or supply voltages in electronics products, is considered to be: A. +5 to +12 VDC B. 0 to 30 V DC C. +12 to 300 V DC D. The anode or plate voltage supply - CORRECT ANSWER D. The anode or plate voltage supply Leakage current in an electronic product, between either of the AC power cord conductors and the chassis or any exposed metals should not exceed _________. A. 5 microamps B. 500 microamps C. 5 millia...

Board of Cosmetology (PSI) Written Exam Prep 976 Questions with Verified Answers The federal agency that regulates & enforces safety & health standards in the workplace? - CORRECT ANSWER OSHA if implements come in contact with blood, they must be disinfected in? - CORRECT ANSWER Tuberculocidal One-celled microorganism with both plant & animal characteristics? - CORRECT ANSWER Bacteria First level of decontamination? - CORRECT ANSWER Sanitation (cleaning) The method of decontamin...

Cosmetology State Board Written Exam Practice Test 162 Questions with Verified Answers Which portion of the hair is chemical wave solution absorbed faster? At crown Where hair density is greatest At scalp Where hair porosity is greatest - CORRECT ANSWER Where hair porosity is greatest If the cuticle is slightly raised and accepts color products easily, the hair is: Coarse Fine Resistant Normal - CORRECT ANSWER normal Before giving a chemical wave, the hair should be: Slightly d...

AQA GCSE BIOLOGY 8461/1F Paper 1 Foundation Tier Version: 1.0 Final *jun2384611F01* IB/M/Jun23/E19 8461/1F For Examiner’s Use Question Mark 1 2 3 4 5 6 7 TOTAL Tuesday 16 May 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all ques...

CET Study Guide Exam 294 Questions with Verified Answers B+, or supply voltages in electronics products, is considered to be: A. +5 to +12 VDC B. 0 to 30 V DC C. +12 to 300 V DC D. The anode or plate voltage supply - CORRECT ANSWER A: +5 to +12 VDC Leakage current in an electronic product, between either of the AC power cord conductors and the chassis or any exposed metal parts should not exceed A. 5 micoamps B. 500 microamps C. 5 milliamps D. 50 milliamps - CORRECT ANSWER D: 50...

Type: CR A student put rose under blue light and rose appears black. The student places the rose under red light and it appears red. Explain this student's conclusion using the laws of physics and color. - Answer-the red rose is red because when white light falls over the rose it absorbs all other colors other than red and emits red light. This is why the object appears red If it was a Blue light over the rose, it absorbs the blue light, but there is nothing to emit so it appears black L...

AQA GCSE MATHEMATICS 8300/3F Foundation Tier Paper 3 Calculator Question Paper + Mark scheme [MERGED] June 2022 *junF01* IB/M/Jun22/E9 8300/3F For Examiner’s Use Pages Mark 2–3 4–5 6–7 8–9 10–11 12–13 14–15 16–17 18–19 20–21 22–23 24–25 26–27 28–29 TOTAL Time allowed: 1 hour 30 minutes Materials For this paper you must have: • a calculator • mathematical instruments • the Formulae Sheet (enclosed). Instructions • ...