Category: Physics

Why do I feel like passing out when I poop? But straining lowers the volume of blood returning to the heart, which decreases the amount of blood leaving it. Special pressure receptors in the blood vessels in the neck register the increased pressure from straining and trigger a slowing of the heart rate to decrease […]

How do I combine two plots in R? Combining Plots R makes it easy to combine multiple plots into one overall graph, using either the. With the par( ) function, you can include the option mfrow=c(nrows, ncols) to create a matrix of nrows x ncols plots that are filled in by row. The layout( ) […]

Are rocks stronger under tension or compression? Rock is strong under compression but relatively weak under tension and shear. This is a result of the microscopic structure of rock: it contains microscopic cracks which are forced open and enlarged by tension and shear but which are forced closed by compression. What increases rock strength? The […]

What is the function of science and technology in development? The role of S is to lead national development and to support socio-economic needs. The priority areas that have been identified are: – Development of electronics, information, and communication technologies. – Development of selected high technologies to lead the industrial structure adjustment. Is there a […]

What is indicator in simple words? : a substance (as a dye) used to show visually (as by a change in color) the condition of a solution with respect to the presence of a particular material (as a free acid or alkali) litmus and phenolphthalein are acid-base indicators. More from Merriam-Webster on indicator. What is […]

How do you talk about timbre? Terms we might use to describe timbre: bright, dark, brassy, reedy, harsh, noisy, thin, buzzy, pure, raspy, shrill, mellow, strained. I prefer to avoid describing timbre in emotional terms (excited, angry, happy, sad, etc.); that is not the sound quality, it is its effect or interpretation. What does timbre […]

What state is Tornado Alley 2020? Although the official boundaries of Tornado Alley are not clearly defined, the main alley extends from northern Texas, through Oklahoma, Kansas, Nebraska, Iowa, and South Dakota. States such as Minnesota, Wisconsin, Illinois, Indiana, Missouri, North Dakota and Ohio are sometimes included in Tornado Alley. What is the farthest a […]

What causes neon to glow? Neon lighting consists of brightly glowing, electrified glass tubes or bulbs that contain rarefied neon or other gases. A high potential of several thousand volts applied to the electrodes ionizes the gas in the tube, causing it to emit colored light. The color of the light depends on the gas […]

What are the 4 types of skids? Driver Ed: Chapter 13 – Natural Laws and Risk Management A B Cornering Skid You lose steering control in a turn, and the car begins to skid Blowout Skid tire suddenly loses air pressure, and the car begins to skid. List the four different types of skids. Braking, […]

What is the mass of an object that weighs 1000 N? 1N=1kg⋅m/s2. Although almost the entire world uses the newton for the unit of force, in the United States, the most familiar unit of force is the pound (lb), where 1 N = 0.225 lb. Thus, a 225-lb person weighs 1000 N. What is the […]