Category: Physics

Can a necklace be pure gold? Pure gold (24k) is too soft and malleable to wear in jewelry, so the gold must be alloyed with other metals to give it strength and durability. Solid gold is the best quality of gold there is – it’s great to wear everyday, won’t tarnish or fade, and is […]

Does nucleus contain DNA? The nucleus contains the cell ‘s DNA and directs the synthesis of ribosomes and proteins. Found within the nucleoplasm, the nucleolus is a condensed region of chromatin where ribosome synthesis occurs. Chromatin consists of DNA wrapped around histone proteins and is stored within the nucleoplasm. Why is the nucleus not important? […]

Do stars shine forever? Most of a star’s lifetime is spent shining bright. It gets its energy from nuclear fusion reactions at its core. A star will shine bright until all the hydrogen at its core has been converted to helium. Then it begins to die. Why do stars shine only at night? Stars are […]

How is air temperature related to relative humidity quizlet? Terms in this set (12) Warm air has more room for the water vapor. If the amount of water stays the same as temperature increases the relative humidity decreases. When moisture is added it increases both the dew point and the relative humidity. What is relative […]

Why are fringes straight? In a wedge-shaped film, each fringe is the locus of points of equal thickness of the film. For wedge shape air film, the locus of points of equal thickness is straight lines parallel to the edge of the wedge. So, fringes appear straight and parallel. How circular fringes are formed? The […]

What happens when you add another bulb to a series circuit? Increasing the number of bulbs in a series circuit decreases the brightness of the bulbs. In a series circuit, the voltage is equally distributed among all of the bulbs. Bulbs in parallel are brighter than bulbs in series. In a parallel circuit the voltage […]

What happened to the thread when cut? Answer. When the thread has been cut off…the thread falls down and the FORCE OF GRAVITY is applied to it… What tension should my sewing machine be on? 4.5 Why does my thread keep shredding? It will probably be at the needle or just after the tension disc […]

What does input and output force mean? Input vs Output Force. The output force (load) is the scientific name for the weight you want to move (In the picture, the output force is the weight of the elephant). The input force (effort) is the amount of effort used to push down on a rod, or […]

¿Qué es el sistema nervioso Somatico o voluntario? El sistema nervioso somático (SNS) está formado por neuronas sensitivas que llevan información (por ejemplo, sensación de dolor) desde los receptores sensoriales fundamentalmente ubicados en la cabeza, la superficie corporal y las extremidades, hasta el sistema nervioso central (SNC), y por neuronas motoras que … ¿Cómo se […]

Where do Convergent boundaries occur? Convergent boundaries occur between oceanic-oceanic lithosphere, oceanic-continental lithosphere, and continental-continental lithosphere. The geologic features related to convergent boundaries vary depending on crust types. Plate tectonics is driven by convection cells in the mantle. Is the Grand Canyon a divergent boundary? Two plates are moving away from each other at the […]