Why is angular velocity negative?

Why is angular velocity negative? First definition Angular velocity is positive when the rotation is counterclockwise and negative when it is clockwise. Second definition: Angular velocity is positive when the angular displacement is increasing and negative when the angular displacement is decreasing. Does radius affect angular velocity? Linear/tangential velocity, in a circlular path, increases with […]

Is curl a vector?

Is curl a vector? In vector calculus, the curl is a vector operator that describes the infinitesimal circulation of a vector field in three-dimensional Euclidean space. The curl of a field is formally defined as the circulation density at each point of the field. A vector field whose curl is zero is called irrotational. What […]

Will 2020 be a hot summer?

Will 2020 be a hot summer? We predict summer 2020 will be warmer and drier tan average overall. We think this summer will be around 1C to 1.5C above the long term average. GWV expects all three summer months to have above average temperatures with an equal chance of July or August being the hottest […]

How can I solve all my problems?

How can I solve all my problems? 5 Ways to Solve All Your Problems Solve the problem. Sometimes it’s as easy as that. Avoid the problem. There just may be some things on that to-do list that will go away if you wait long enough. Cut the problem down to size. Address an underlying issue. […]

Do those or does those?

Do those or does those? Roger Woodham replies: We use do/does or is/are as question words when we want to ask yes/no questions. We use does and is with third person singular pronouns (he, she, it) and with singular noun forms. We use do and are with other personal pronouns (you, we they) and with […]

What happens if you have too much acetylcholine?

What happens if you have too much acetylcholine? Excessive accumulation of acetylcholine (ACh) at the neuromuscular junctions and synapses causes symptoms of both muscarinic and nicotinic toxicity. These include cramps, increased salivation, lacrimation, muscular weakness, paralysis, muscular fasciculation, diarrhea, and blurry vision. What gets rid of acetylcholine? One important neurotransmitter, acetylcholine, has a specialized enzyme […]

What are the 5 levels of evidence?

What are the 5 levels of evidence? Johns Hopkins Nursing EBP: Levels of Evidence Level I. Experimental study, randomized controlled trial (RCT) Level II. Quasi-experimental Study. Level III. Non-experimental study. Level IV. Opinion of respected authorities and/or nationally recognized expert committees/consensus panels based on scientific evidence. Level V. What evidence is inadmissible in court? Evidence […]

What is the principle of inertia?

What is the principle of inertia? Law of inertia, also called Newton’s first law, postulate in physics that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by […]

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