Can a DC motor run on AC? The AC series motor you describe is a universal motor, and will work fine on DC. The speed characteristics will be a little different, since when running on AC there’s a significant reactive drop in the field windings that reduces the available driving emf. Can you charge DC […]
Did Antarctica used to be hot?
Did Antarctica used to be hot? Climate change Some of Antarctica has been warming up; particularly strong warming has been noted on the Antarctic Peninsula. A study by Eric Steig published in 2009 noted for the first time that the continent-wide average surface temperature trend of Antarctica was slightly positive from 1957 to 2006. Did […]
What is the difference between an intensive and extensive property?
What is the difference between an intensive and extensive property? Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance’s chemical identity. Which list […]
What are the main characteristics of deciduous forests?
What are the main characteristics of deciduous forests? Key Characteristics of Temperate Deciduous “Broadleaf” Forest Deciduous forests have a long, warm growing season as one of four distinct seasons. There is abundant moisture. The soil typically is rich. Tree leaves are arranged in strata: canopy, understory, shrub, and ground. Which of the following adaptations enable […]
How do molecules bond with one another quizlet?
How do molecules bond with one another quizlet? A molecule is neutral group of atoms held together by covalent bonds. As atoms near each-other, the charged particles in their valence shells begin to interact. The positive nuclei and the negatively charged electrons in the outer shells are ATTRACTED to one another. What are the two […]
Do all elements have isotopes?
Do all elements have isotopes? All elements have isotopes. There are two main types of isotopes: stable and unstable (radioactive). There are 254 known stable isotopes. All artificial (lab-made) isotopes are unstable and therefore radioactive; scientists call them radioisotopes. How do isotopes give off radiation? Radioactive isotope, also called radioisotope, radionuclide, or radioactive nuclide, any […]
What is the third definition of elevation?
How husbands miss their wives?
How husbands miss their wives? Improving your relationship with your husband is the best way to make him genuinely miss you. You can start by considering his point of view instead of focusing only on your own. It’s human nature to think about our own individual needs, but good husbands and wives also think about […]
What increases resistance in a wire?
What increases resistance in a wire? Resistance increases with the temperature of the wire. The hotter wire has a larger resistance because of increased vibration of the atomic lattice. When a material gets hotter the atoms in the lattice vibrate more. What’s the relation between current and resistance? The relationship between current, voltage and resistance […]
Why is it important to submit assignments on time?
Why is it important to submit assignments on time? Homework provides students with necessary practice in writing, thinking, reading, and problem-solving. Doing homework in time is very important since it will show your professor that you are a serious student who is interested in the subject. If you perform all your tasks on time, this […]