Is heart disease still the number one killer? While heart disease is often considered a man’s disease, it doesn’t discriminate. It’s the number one killer of both men and women in the United States. How do you lower all cause mortality? They found that, compared with taking 4,000 steps per day, a number considered to […]
What is the difference between the bell and the diaphragm of a stethoscope?
What is the difference between the bell and the diaphragm of a stethoscope? The bell effect is created by light pressure on the stethoscope. Firm pressure makes the stethoscope behave like it should with a diaphragm. The difference between the diaphragm and the bell is that the bell allows low frequency sounds, which permits hearing […]
What are three behaviors you should avoid for a job interview?
What are three behaviors you should avoid for a job interview? 15 things you should avoid in a job interview Arriving late. Poor time management decreases your ability to be punctual due to unpredictable delays. Unexcused absence. Too casual at greeting. A lack of interest in the employer. Questionable documents? Overtired appearance. Lack of care. […]
How does a roller coaster go up a hill?
Who is known as the father of modern astronautics?
Who is known as the father of modern astronautics? For his ideas, careful research, and great vision, Tsiolkovsky has been called the Father of Modern Astronautics. Early in the 20th century, an American, Robert H. Goddard (1882-1945), conducted a variety of practical experiments in rocketry. When did Russia put a man in space? A Is […]
What does constant velocity look like?
What does constant velocity look like? Motion with Constant Velocity: When an object is moving with constant velocity, it does not change direction nor speed and therefore is represented as a straight line when graphed as distance over time. Given a graph as in, we can calculate the velocity from the change in distance over […]
How do you calculate sound pressure?
How do you calculate sound pressure? Sound pressure level (SPL) calculator – formula & step by step calculation to measure the logarithmic RMS value of the sound or acoustic pressure caused by the sound wave relative to a reference value in decibels. SPL (dB) = 10 log10(p2/po2). How do you convert pressure to dB? Sound […]
Why is graphite dangerous?
Why is graphite dangerous? Graphite is a form of pure carbon. It is not edible, but not chemically dangerous. Graphite can be made to be more dangerous than Pb depending on ingenuity. For instance if you powder graphite and force a person to breath the powder until they choke, it is more dangerous that a […]
What type of bond is potassium sulfur?
What type of bond is potassium sulfur? ionic bond What is the bond between potassium and sulfur? The difference in charge between the two 1+ potassium ions and the 2- sulfur ion allows electrostatic attraction between the sulfur ions and potassium ions. This is an ionic bond and is the basis of the ionic compound […]
Which is older intrusion or extrusion?
Which is older intrusion or extrusion? Lava that hardens on the surface is called an extrusion. The rock layers below an extrusion are always older than the extrusion. There, the magma cools and hardens into a mass of igneous rock called an intrusion. An intrusion is always younger than the rock layers around and beneath […]