Is sin 90 degrees undefined? The exact value of sin 90 degrees is equal to 1. What if Tan is undefined? tan(θ) will be undefined when x = 0, since you would be dividing by zero. This places you at an angle of either 90º or 270º. Is Tan 0 undefined? Trigonometric functions are equal […]
How is energy transferred in a bicycle?
How is energy transferred in a bicycle? Mechanical energy usually means the sum of the kinetic energy and potential energy. So when you ride your bike you hope that the muscular (chemical) energy is converted mainly into mechanical energy. Unfortunately friction will produce heat and sound and will reduce the amount of mechanical energy that […]
Why do electrons lose or gain electrons?
Why do electrons lose or gain electrons? Explanation: Atoms and chemical species lose or gain electrons when they react in order to gain stability. Thus, typically, metals (with nearly empty outer shells) lose electrons to non-metals, thereby forming positive ions. The number of electrons depends on their position on the Periodic table (in simple terms). […]
How do RBC survive without nucleus?
How do RBC survive without nucleus? The red blood cells without nuclei, called reticulocytes, subsequently lose all other cellular organelles such as their mitochondria, Golgi apparatus and endoplasmic reticulum. The spleen acts as a reservoir of red blood cells, but this effect is somewhat limited in humans. Is RBC a living cell? rbcs are living […]
How many types of proteins are there?
How many types of proteins are there? Protein is the basic component of living cells and is made of carbon, hydrogen, oxygen, nitrogen and one or more chains of amino acids. The three types of proteins are fibrous, globular, and membrane. How many proteins are there in humans? 400,000 proteins How many proteins are in […]
What frequency is 75 meters?
What frequency is 75 meters? All Frequencies in MHz 160 Meters: 1.885, 1.900, 1.945, 1.985 75 Meters: 3.825, 3.870 (West Coast), 3.880, 3.885 40 Meters: 7.290, 7.295 20 Meters: 14.286 Is 80 meters upper or lower sideband? Lower sideband (LSB)–The common single-sideband operating mode on the 40, 80 and 160-meter amateur bands. Upper sideband (USB)–The […]
Were there any omnivorous dinosaurs?
Were there any omnivorous dinosaurs? Only a few of the known dinosaurs were omnivores (eating both plants and animals). Some examples of omnivores are Ornithomimus and Oviraptor, which ate plants, eggs, insects, etc. Does not eating meat make your skin better? Beyond just helping with stubborn pimples, going vegan can also improve your complexion, said […]
How does my body know how do you carry out the essential functions of life?
How does my body know how do you carry out the essential functions of life? Systems of specialized cells within organisms help them perform the essential functions of life, which involve chemical reactions that take place between different types of molecules, such as water, proteins, carbohydrates, lipids, and nucleic acids. All cells contain genetic information […]
What device may require the use of a 12V 6 pin power connector?
What device may require the use of a 12V 6 pin power connector? Chapter 1 RQ’s Question Answer What device might require extra power so that it uses the 12V 6-pin power connector? A PCI Express card What is the purpose of the 4-pin auxiliary connector on a motherboard? to make more power What is […]
Which are examples of water absorbing energy?
Which are examples of water absorbing energy? When water absorbs enough heat, it becomes a gas (water vapor). This process is called evaporation. Water vapor (steam) mixes with the air and seems to disappear. A simple example is water boiling in a teapot and escaping into the air. What happens when the kinetic energy of […]