What is the fastest way to solve math questions? 10 tricks for doing fast math Adding large numbers. Adding large numbers just in your head can be difficult. Subtracting from 1,000. Multiplying 5 times any number. Division tricks. Multiplying by 9. 10 and 11 times tricks. Percentage. Quickly square a two-digit number that ends in […]
What is the main organ of circulatory system?
What is the main organ of circulatory system? The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. What is the main function of a circulatory system? The circulatory system delivers oxygen and nutrients to cells and takes away wastes. […]
When preparing to turn left drivers should?
When preparing to turn left drivers should? All of the above. As you approach a left turn, signal your intentions three to five seconds in advance. Continually check your rearview mirror as you gradually slow down. On a multilane road, move into the left lane before reaching the intersection where you plan to turn. How […]
How does removing a bulb or opening and closing the switch affect a parallel circuit?
How does removing a bulb or opening and closing the switch affect a parallel circuit? An obvious advantage of parallel circuits is that the burnout or removal of one bulb does not affect the other bulbs in parallel circuits. They continue to operate because there is still a separate, independent closed path from the source […]
Is there a new planet that looks like Earth?
Is there a new planet that looks like Earth? Kepler-452b (a planet sometimes quoted to be an Earth 2.0 or Earth’s Cousin based on its characteristics; also known by its Kepler Object of Interest designation KOI-7016.01) is a super-Earth exoplanet orbiting within the inner edge of the habitable zone of the Sun-like star Kepler-452, and […]
What is the difference in the charges on a balloon rubbed in your hair and a glass rod rubbed?
What is the difference in the charges on a balloon rubbed in your hair and a glass rod rubbed? The balloon steals electrons from your hair, leaving the hair positively charged, and the balloon negatively charged. It causes the hair to be apart from each other, because they have the same charge. Glass has a […]
Which element has longest half-life?
Which element has longest half-life? Bismuth-209 (209Bi) is the isotope of bismuth with the longest known half-life of any radioisotope that undergoes α-decay (alpha decay). What’s so special about element 115? Moscovium is a radioactive, synthetic element about which little is known. It is classified as a metal and is expected to be solid at […]
Is reheating food in the microwave bad for you?
Is reheating food in the microwave bad for you? The Verdict: When reheating leftovers, microwaving is best While the mineral content of food isn’t affected by microwaving, the vitamin content does take a bit of a hit when food is reheated. (Vitamin C and the B vitamins are especially affected.) Still, the microwave isn’t the […]
What are the three main types of body membranes?
What are the three main types of body membranes? There are three types of epithelial membranes: mucous, which contain glands; serous, which secrete fluid; and cutaneous which makes up the skin. What are the three functions of body membranes? Biological membranes have three primary functions: (1) they keep toxic substances out of the cell; (2) […]
What is the most sensitive type of spectroscopy?
What is the most sensitive type of spectroscopy? Among instrumental techniques, fluorescence spectroscopy is recognized as one of the more sensitive. In fluorescence, the intensity of the emission of the sample is measured. The reason for the high sensitivity of fluorescence techniques is that the emission signal is measured above a low background level. What […]