Is eccentricity positive or negative? In mathematics, the eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape. How is eccentricity calculated? The formula to determine the eccentricity of an ellipse is the distance between foci divided by the length of the major axis. What does a negative eccentricity mean? […]
Is pumice toxic?
Is pumice toxic? Pumice is an excellent filler. It is non-crystalline by nature, non-toxic and non-hazardous. What can I do with leftover lava rocks? 4 Uses for Lava Rock BBQ. Lave rock is used in gas barbecues. Landscape. Lava rock can make effective landscaping in a flower bed or border. Aquarium. Lave rock is often […]
Why is the tundra worth saving?
Why is the tundra worth saving? Why is the Tundra important to protect? The tundra is important to protect because it acts as a carbon sink by absorbing carbon dioxide from the environment and helping to counteract the detrimental effects of carbon emissions. Where are tundras found? The tundra is a treeless polar desert found […]
How far does the tip of the minute hand of a clock move in 20 minutes if the hand is 5 inches long?
Can airbags kill you?
Can airbags kill you? Not only can the airbag can seriously injure you, it can kill you. Second and third generation airbags, even though, they have been de-powered from the mid 1990’s, still deploy outward at 300 mph. A deploying airbag has the explosive equivalent of 20 shotgun shells. This can cause neck fractures and […]
What are the three types of accumulators?
What are the three types of accumulators? Depending on separating elements, we can distinguish three types of hydraulic accumulators: bladder accumulators, diaphragm accumulators, and piston accumulators. What is the purpose of accumulator? Accumulator is a pressure vessel for storing hydraulic pressure in it utilizing compressible and decompressible nature of nitrogen gas. So, it can be […]
What is wave interference and what two types are there?
What is wave interference and what two types are there? There are two types of interference: constructive and destructive. Constructive interference occurs when the wave amplitudes reinforce each other, building a wave of even greater amplitude. Destructive interference occurs when the wave amplitudes oppose each other, resulting in waves of reduced amplitude. What are sources […]
How does friction affect total mechanical energy?
How does friction affect total mechanical energy? Mechanical energy is reduced due to friction and converted to heat. This is the reason why there is an increase in temperature in objects that move against each other. The role of friction in a closed system is to convert a part of the total energy to heat. […]
What are the 5 critical thinking questions?
What are the 5 critical thinking questions? I want to share five important questions that I learned, that each of us can ask in order to exercise our critical thinking skills….The questions are as follows: What are the issue and the conclusion? What are the reasons? What are the assumptions? Are there any fallacies in […]
What are the three main physical properties of sound waves?
What are the three main physical properties of sound waves? Sound waves are changes in pressure generated by vibrating molecules. The physical characteristics of sound waves influence the three psychological features of sound: loudness, pitch, and timbre. Loudness depends on the amplitude,or height, of sound waves. The greater the amplitude, the louder the sound perceived. […]