Category: Physics

Which of the following is solid state at room temperature? Answer. Explanation: Hydrogen, Oxygen, Nitrogen, Helium and all of the Noble Gases, Fluorine, Chlorine, Bromine, Mercury. What are 3 examples of a gas? Examples of Gases Hydrogen. Nitrogen. Oxygen. Carbon Dioxide. Carbon Monoxide. Water Vapour. Helium. Neon. What is the difference in gas types? What […]

What is unique about the ALMA telescope? ALMA is a transformative radio telescope that can study cosmic light that straddles the boundary between radio and infrared. Most objects in the Universe emit this kind of energy, so the ability to detect it has been a driver for astronomers for decades. What do you know about […]

What are exceptions to the octet rule? However, there are three general exceptions to the octet rule: Molecules, such as NO, with an odd number of electrons; Molecules in which one or more atoms possess more than eight electrons, such as SF6; and. Molecules such as BCl3, in which one or more atoms possess less […]

What is the trend in atomic radius as you move across a period from left to right? Periodic Trend The atomic radius of atoms generally decreases from left to right across a period. There are some small exceptions, such as the oxygen radius being slightly greater than the nitrogen radius. Within a period, protons are […]

How do you find the slope of a speed time graph? Using the Slope Equation Pick two points on the line and determine their coordinates. Determine the difference in y-coordinates for these two points (rise). Determine the difference in x-coordinates for these two points (run). Divide the difference in y-coordinates by the difference in x-coordinates […]

What are minerals list examples? Examples of minerals are feldspar, quartz, mica, halite, calcite, and amphibole. Examples of rocks are granite, basalt, sandstone, limestone, and schist. What is the different kinds of minerals? The two kinds of minerals are: macrominerals and trace minerals. Macro means “large” in Greek (and your body needs larger amounts of […]

Is a 20 minute run worth it? Greater motivation – If you know you’ve only got to run for 15-20 minutes, you’ll be less tempted to skip a run. This means you’re more likely to stick to a running schedule in the long-term, therefore reaping the health and fitness benefits. If you run for 20 […]

How do you calculate the earliest start? The formula used for calculating Early Start and Early Finish dates: Early Start of the activity = Early Finish of predecessor activity + 1. Early Finish of the activity = Activity duration + Early Start of activity – 1. What is difference between PERT and CPM? PERT is […]

Which of the following is an example of a database management system? The DBMS manages incoming data, organizes it, and provides ways for the data to be modified or extracted by users or other programs. Some DBMS examples include MySQL, PostgreSQL, Microsoft Access, SQL Server, FileMaker, Oracle, RDBMS, dBASE, Clipper, and FoxPro. What are the […]

Which substance is a compound Water Gold oxygen? Therefore the answer is that water is a compound as its chemical make up is H2O. What type of mixture is gold? b) 14-karat gold is an alloy of gold and other metals such as copper and silver. Alloys are homogeneous mixtures. Pure gold is referred to […]