What unit is coefficient of friction? newtons What does a wheel and axle do? Wheel and axle, basic machine component for amplifying force. In its earliest form it was probably used for raising weights or water buckets from wells. Its principle of operation is demonstrated by the large and small gears attached to the same […]
Is there no noise in space?
Is there no noise in space? Unlike light, sound requires a medium to travel through. This simply means that in order to hear sound there has to be something for sound to travel through. In the vacuum of space, there are no (or very, very few) particles to vibrate, so sound cannot travel through this […]
What is the formula for potassium iodide?
What is the formula for potassium iodide? KI What is the physical state of potassium iodide? Potassium Iodide Properties (Theoretical) Compound Formula IK Appearance White crystalline solid Melting Point 681 °C Boiling Point 1,330 °C Density 3.123 g/cm3 What is the charge for potassium iodide? +1 What is a substitute for potassium iodide? As an […]
What is a material that conducts electricity under certain conditions?
What is a material that conducts electricity under certain conditions? A substance that will conduct electricity only under certain conditions is called a semiconductor. What is the difference between electronics and electric? The major difference between the electrical and electronic devices is that the electrical devices convert the electrical energy into the other form of […]
What triggers drought?
What triggers drought? When rainfall is less than normal for a period of weeks to years, streamflows decline, water levels in lakes and reservoirs fall, and the depth to water in wells increases. If dry weather persists and water-supply problems develop, the dry period can become a drought. How long did the dirty thirties last? […]
How do you magnetize metal permanently?
How do you magnetize metal permanently? Take two magnets put one North pole and one South pole on the middle of the iron. Draw them towards its ends, repeating the process several times. Take a steel bar, hold it vertically, and strike the end several times with a hammer, and it will become a permanent […]
What is chain reaction with example?
What is chain reaction with example? In chain reaction. Nuclear chain reactions are series of nuclear fissions (splitting of atomic nuclei), each initiated by a neutron produced in a preceding fission. For example, 21/2 neutrons on the average are released by the fission of each uranium-235 nucleus that absorbs a low-energy neutron. What is another […]
What does N stand for on a spring scale?
What does N stand for on a spring scale? The newton. (N) is the basic SI unit of force. The unit is named. in honor of Sir Isaac Newton. What are the different types of balances? There are three different types of balance: symmetrical, asymmetrical and radial. What are the 2 types of balances? There […]
What are the phases of meiosis II?
What are the phases of meiosis II? In meiosis II, the phases are, again, analogous to mitosis: prophase II, metaphase II, anaphase II, and telophase II (see figure below). As shown in the figure below, meiosis II begins with two haploid (n = 2) cells and ends with four haploid (n = 2) cells. Are […]
What should manifold vacuum be at idle?
What should manifold vacuum be at idle? Manifold vacuum is used to show engine compression and is created between the throttle plate and the intake valves. Normal manifold vacuum on an engine running at idle speed is around 18 to 20 inches. How much vacuum should a 350 have at idle? Idle vacuum for most […]