Absolute magnitude Study guides, Class notes & Summaries

A-level PHYSICS Paper 3 Section B Astrophysics Thursday 15 June 2023 Morning Materials For this paper you must have: • a pencil and a ruler • a scientific calculator • a Data and Formulae Booklet • a protractor. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you ...

 -1.5 magnitude Sirius appears 25x brighter than 2 magnitude Polaris.  “All neutron stars are pulsars, but not all pulsars are neutron stars” FALSE  “Spectroscopic Binary” is the term given to a pair of stars that we can determine are orbiting each other only by measuring their periodic Doppler shifts.  A 6.8 solar mass neutron star does NOT exist.  A loop of gas and charged particles following the magnetic field lines between sunspot’s poles is a Prominence/...

when might overfitting occur - Answer- when the # of factors is close to or larger than the # of data points causing the model to potentially fit too closely to random effects Why are simple models better than complex ones - Answer- less data is required; less chance of insignificant factors and easier to interpret what is forward selection - Answer- we select the best new factor and see if it's good enough (R^2, AIC, or p-value) add it to our model and fit the model with the current set ...

2 © OCR 2023 F F 2 Section A You should spend a maximum of 30 minutes on this section. Write your answer to each question in the box provided. 1 Which row contains only scalar quantities? A Absolute temperature, displacement, moment B Acceleration, force, momentum C Gravitational potential, kinetic energy, mass D Kinetic energy, mass, momentum Your answer [1] 2 Forces are applied to a circular shaft of diameter d. Which diagram shows a torque of a couple with magnitude Fd? F 2F ...

Cultural Awareness - ANSWER:Self-examination of one's own prejudices and biases toward other cultures. An in-depth exploration of one's own cultural/ethnic background. Cultural competence in nursing consists of four principles. - ANSWERCare is designed for the specific client. Care is based on the uniqueness of the person's culture and includes cultural norms and values. Care includes self-employment strategies to facilitate client decision making to improve health behaviors. Care is pr...

Kleinman explanatory Model - ANSWER Eliciting the patient's (explanatory) model gives the physician knowledge of the beliefs the patient holds about his illness, the personal and social meaning he attaches to his disorder, his expectations about what will happen to him and what the doctor will do, and his own therapeutic goals Cultural competence - ANSWER Cultural competence is defined as "a dynamic, fluid, continuous process whereby an individual, system or health care agency find meaningf...

TX PACT: Essential Academic Skills 700 (Subtest III: Mathematics - 703) (2022/2023) (Passed with 100%) Real numbers are numbers that have a specific value. Real numbers can be rational or irrational. Within rational numbers, there are integer, whole, and natural numbers. Rational numbers are numbers that can be expressed as a ratio (fraction or comparison) of two integers, a/b where b ≠ 0 (because zero can't be the denominator of a fraction). All rational numbers can be written exactly in bo...

Biostatistics BCPS questions and answers 2023Discrete Variables Can only take a limited number of values within a given range. 1. Nominal 2. Ordinal Nominal Data Discrete Variable Data of categories only, unordered, with no indication of relative severity. Data cannot be arranged in an ordering scheme. (Gender, Race, Religion, mortality, disease state) 00:56 01:13 Ordinal Data Discrete Variable Placed in categories and rank ordered, distance between categories may ...

PLTW Principles of Engineering Latest Updated Graded A+ 1st class lever fulcrum in the middle; see-saw, hammer, scissors 2nd class lever fulcrum at the end, load in the middle; wheel barrow, car-jack 3rd class lever fulcrum at the end, effort in the middle; tweezers, baseball bat 5 Recycling & Material categories -Organics -Metals -Polymers -Ceramics -Composites 6 Types of Simple Machines -Inclined plane -Lever -Pulley -Screw -Wedge -Wheel and Axle Absolute pr...

To find the most accurate distance to a nearby star using parallax, astronomers could compare the view of the star against the background stars at what times of the year? - In January and July Which of the following correctly expresses the distance to a nearby star? - 1.3 parsecs Consider two stars (Y and Z) that both exhibit parallax. Star Z appears to move back and forth against the background stars by a greater amount than Y. Which star is farther away from Earth? - Star Y A star has a p...