Where do electromagnetic waves come from? Description: Electromagnetic waves are formed when an electric field comes in contact with a magnetic field. They are hence known as ‘electromagnetic’ waves. The electric field and magnetic field of an electromagnetic wave are perpendicular (at right angles) to each other. Is all energy electromagnetic? All of the energy […]
How do you increase current in a coil?
How do you increase current in a coil? Increase Winding Count Increasing the magnetic field applied to the magnetizable material in turn makes its own magnetic field stronger. Similarly, wrapping with thicker wire has the same effect, but by increasing the current. Like a widening river, a thicker conductor allows more current through. Does more […]
What is the energy of a wavelength?
What is the energy of a wavelength? This can be crest-to-crest, trough-to-trough, null-to-null, etc. Wavelength is related to energy and frequency by E = hν = hc/λ, where E = energy, h = Planck’s constant, ν = frequency, c = the speed of light, and λ = wavelength. Wavelength the distance between any given point […]
What is the other name for rectangular coordinate system?
What is the other name for rectangular coordinate system? A Cartesian coordinate system in two dimensions (also called a rectangular coordinate system or an orthogonal coordinate system) is defined by an ordered pair of perpendicular lines (axes), a single unit of length for both axes, and an orientation for each axis. What are the different […]
Does water pressure go up at night?
Does water pressure go up at night? Pressure is higher at night, when fewer people are using water. If your pressure reads over 80 PSI, you need to take action to protect your plumbing system. What is a good water pressure? Normal water pressure is generally between 40 and 60 PSI; most homeowners prefer something […]
What is the key variable in an isometric contraction?
What is the key variable in an isometric contraction? What is the key variable in an isometric contraction of a skeletal muscle? Your answer:The key variable is muscle length. 3. Based on the unique arrangement of myosin and actin in skeletal muscle sarcomeres, explain why active force varieswith changes in the muscle’s resting length. What […]
How do you find weight if you have pressure and area?
What is chemical hazard and its examples?
What is chemical hazard and its examples? There are many types of hazardous chemicals, including neurotoxins, immune agents, dermatologic agents, carcinogens, reproductive toxins, systemic toxins, asthmagens, pneumoconiotic agents, and sensitizers. These hazards can cause physical and/or health risks. Which of the following is considered a chemical hazard? Answer: There are many types of hazardous chemicals, […]
What should the operator of a powerboat do when crossing paths with a canoe?
What should the operator of a powerboat do when crossing paths with a canoe? There are rules that every operator must follow when encountering other vessels. Two terms help explain these rules. Give-way vessel: The vessel that is required to take early and substantial action to keep out of the way of other vessels by […]
What will happen to Earth in 2020?
What will happen to Earth in 2020? 5. World’s population will reach 8 billion. In 1994, the International Food Policy Research Institute projected the world population would increase by 2.5 billion to reach 8 billion by 2020. India, Pakistan, Bangladesh and the continent of Africa would add 1.5 billion people, the institute predicted. What is […]