Which is faster maglev or Hyperloop? This Virgin Hyperloop test hit a top speed of just 48.07 meters per second, that’s 107 mph and it traveled 395 meters. Hyperloop is effectively a magnetic levitation (maglev) train in a vacuum tube. As its name suggests, maglev technology suspends trains in concrete tracks using electromagnets so it’s […]
How is atomic number calculated?
How is atomic number calculated? The symbol for an atom can be written to show its mass number at the top, and its atomic number at the bottom. To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number: number of protons = atomic number. number of electrons = […]
Why was Silent Spring banned?
Why was Silent Spring banned? Kennedy ordered the President’s Science Advisory Committee to examine the issues the book raised, its report thoroughly vindicated both Silent Spring and its author. As a result, DDT came under much closer government supervision and was eventually banned. What is the purpose of Silent Spring? Rachel Carson’s Silent Spring was […]
Is a compound microscope 2d or 3d?
Is a compound microscope 2d or 3d? Compound microscopes are light illuminated. The image seen with this type of microscope is two dimensional. This microscope is the most commonly used. You can view individual cells, even living ones. What are the application of compound microscope? Compound microscopes are used to view small samples that can […]
Why buying organic is bad?
Why buying organic is bad? For the end consumer, cost is one of the biggest disadvantages of organic foods. Organic farming is more time and labor intensive, and the organic certification process can be costly and difficult. A smaller amount of organic food is grown per acre and there is less demand for organic foods […]
How many times more intense is a 40 dB sound than a 20 dB sound?
How many times more intense is a 40 dB sound than a 20 dB sound? So, a sound that’s 120 dB—a jet engine, for example—is one trillion times the intensity of the smallest sound a human can hear….That’s Intense: Understanding the Decibel Scale. 0 dB threshold of human hearing 20 dB 100 times more intense […]
Why do bearings have 3 digits?
Why do bearings have 3 digits? A bearing is a direction, expressed as a three-figure number. Bearings are measured clockwise from north. Bearings are always given as three figures because if you only wrote down 35°, it could easily be mistaken for 350°. Do bearings have a degrees sign? There are four main directions on […]
What causes a rain shadow desert quizlet?
What causes a rain shadow desert quizlet? what causes rain shadow desert? air that is blown over a mountain and cooled, generating precipitation. the air loses much of its moisture. when the air goes down the other side of the mountain, it warms, making precipitation even less likely. What causes a rain shadow desert put […]
What are the basic principles?
What are the basic principles? Noun. 1. basic principle – principles from which other truths can be derived; “first you must learn the fundamentals”; “let’s get down to basics” fundamental principle, fundamentals, basics, bedrock. principle – a basic truth or law or assumption; “the principles of democracy” What is the three basic principles? Three basic […]
Why do heavy boats float?
Why do heavy boats float? a gravitational force acts in the downward direction causing the object to sink. That is, if an object weighs less than the amount of water it displaces then it floats otherwise it sinks. A boat floats because it displaces water that weighs more than its own weight. Do cruise ships […]