Category: Physics

What single rigid motion can move the solid figure into the dashed figure? rotation Is the image congruent to the Preimage? Because the image of a figure under a translation, reflection, or rotation is congruent to its preimage, translations, reflections, and rotations are examples of congruence transformations. A congruence transformation is a transformation under which […]

What should you not wear in a lab? Avoid wearing the following items to lab: Tank tops or cropped shirts. Mesh shirts. Shorts or skirts that do not cover your knees when you are sitting. Sandles, flip-flops, or other shoes that do not completely cover your feet. What are the dos and don’ts in the […]

Is Magma more dense than the crust? In fact, it can get so hot that the rocks that make up the crust can actually begin to melt. This molten material is called magma. It is less dense than the surrounding rock so it tends to move upwards through the crust. Magma also comes from material […]

Why can I not float? Hicks explained not everyone can float — it depends on body density and their ability to displace enough water to float. People with smaller or muscular body types tend to have trouble. RelaxNSwim further explains fat is less dense than muscle and bones, so fat floats more easily. Does holding […]

What does FST of 1 mean? no sharing What is the bottleneck effect give an example? The bottleneck effect is an extreme example of genetic drift that happens when the size of a population is severely reduced. Events like natural disasters (earthquakes, floods, fires) can decimate a population, killing most individuals and leaving behind a […]

Which part of an atom has the least mass? The majority of an atoms’ mass comes from the protons and neutrons that make up its nucleus. Electrons are the least massive of an atom’s constituent particles, with a mass of 9.11 x 10-31 kg and a size too small to be measured by current techniques. […]

What does model mean? (Entry 1 of 3) 1 : a usually miniature representation of something a plastic model of the human heart also : a pattern of something to be made. 2a : a type or design of product (such as a car) offers eight new models for next year, including a completely restyled […]

What are different phases of steel? Whilst there are many structures or mixtures of structures, there are only three phases involved in any steel; ferrite, cementite and austenite. The area denoted as austenite in Figure 3 is an area within which iron can retain much dissolved carbon. Which is the hardest form of steel? Steel […]

Is Carnot a cycle? The Carnot cycle consists of the following four processes: A reversible isothermal gas expansion process. In this process, the ideal gas in the system absorbs qin amount heat from a heat source at a high temperature Thigh, expands and does work on surroundings….T-S Diagram. Process ΔT ΔS IV Thigh−Tlow 0 Full […]

What is the most dangerous UV radiation? UVB Can UV cause cancer? Too much UV radiation from the sun or sunbeds can damage the genetic material (the DNA) in your skin cells. If enough DNA damage builds up over time, it can cause cells to start growing out of control, which can lead to skin […]