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 […]
How are bimetallic strips useful?
How are bimetallic strips useful? use in thermometers The bimetallic strip constitutes one of the most trouble-free and durable thermometers. It is simply two strips of different metals bonded together and held at one end. When heated, the two strips expand at different rates, resulting in a bending effect that is used to measure… What […]
Which stage of pregnancy is the longest?
Which stage of pregnancy is the longest? Elephants. Elephants have the longest gestation period of all mammals, carrying their young for 18 to 22 months before giving birth. How can you tell if your baby is abnormal? An ultrasound creates pictures of the baby. This test is usually completed around 18–20 weeks of pregnancy. The […]
Is landslide a natural disaster or man made?
Is landslide a natural disaster or man made? Landslides are more widespread than any other geological event. They are defined as downslope transport of soil and rock resulting from natural phenomena or man made actions. There can be different types of movements: falls, slides, topples, lateral spread, and flows. Is a major cause of landslides […]
What are different phases of steel?
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 […]
What does it mean when a ship honks 3 times?
What is the total energy of the universe?
What is the total energy of the universe? Thus, “the gravitational field has negative energy. In the case of a universe that is approximately uniform in space, one can show that this negative gravitational energy exactly cancels the positive energy represented by the matter. So the total energy of the universe is zero.” Why energy […]
Is blood in your body blue until it touches oxygen?
Is blood in your body blue until it touches oxygen? Hemoglobin bound to oxygen absorbs blue-green light, which means that it reflects red-orange light into our eyes, appearing red. That’s why blood turns bright cherry red when oxygen binds to its iron. But this is wrong; human blood is never blue. The bluish color of […]
Which is the smallest galaxy in the world?
Which is the smallest galaxy in the world? With no more than 1000 stars apiece, spread out over just a few light-years in space, they’re the most extreme galaxies known today. Dwarf galaxy NGC 5477 is one of many irregular dwarf galaxies. What’s bigger than the multiverse? omniverse What is above an omniverse? One multiverse […]