Year: 2021

How are the collecting ducts affected by the hormone ADH? Antidiuretic hormone binds to receptors on cells in the collecting ducts of the kidney and promotes reabsorption of water back into the circulation. In the absense of antidiuretic hormone, the collecting ducts are virtually impermiable to water, and it flows out as urine. What happens […]

How do you find zero velocity? So, when the acceleration is 0 the velocity is -1. v(0) just gives you the object’s initial velocity, which is 3 units/s. To find when the velocity is zero you want to find all t such that 0=t2−4t+3. There should be two solutions, t1,t2 as v(t) is a quadratic. […]

What is the first genetically modified animal? mouse What is the most commonly genetically modified animal? Genetically modified mice have been the most common mammals used in biomedical research, as they are cheap and easy to manipulate. Is GMO banned in Europe? A number of EU Members have prohibited individual authorized GMOs or GM seeds, […]

How do the moon and sun affect a tsunami? Ray Coish: The moon’s orbit is elliptical, so it’s not unusual for the moon to come closer or go farther from the earth. But that has nothing to do with an earthquake or tsunami. The tsunami is caused by the sea floor moving. The tidal effect […]

What is the working of rectifier? A rectifier is a device that converts an oscillating two-directional alternating current (AC) into a single-directional direct current (DC). Rectifiers can take a wide variety of physical forms, from vacuum tube diodes and crystal radio receivers to modern silicon-based designs. What is 6 pulse rectifier? It is used in […]

Which is the fastest animal in the world? peregrine falcon What is the fastest bird in the world? peregrine What are the only birds that can fly backwards? Hummingbirds are the only birds that can fly backwards and upside down. The design of a hummingbird’s wings differs from most other types of birds. Hummingbirds have […]

How long does alcohol affect your driving? It takes about an hour for the body to get rid of one normal drink from the circulatory system. Therefore, if someone has had four normal drinks, the person should wait four hours or more before driving. Keep in mind that “sober” means that no alcohol or other […]

Is helium used for rocket fuel? Bubbles can form when frigid liquid hydrogen and oxygen fuel are pumped into a rocket engine. The helium gas is then directed through more pipes back to the liquid hydrogen and liquid oxygen tanks, where it expands and helps force the fuel to the engine. Helium is used because […]

Why does each element have a unique spectrum? There are many possible electron transitions for each atom, and each transition has a specific energy difference. This collection of different transitions, leading to different radiated wavelengths, make up an emission spectrum. Each element’s emission spectrum is unique. What is the difference between action spectrum and absorption […]

How long can you drive with a power steering leak? In this case, topping off the fluid is necessary every time you cover a few miles as it keeps you driving indefinitely. For instance, 14o z of fluid is added into the pump to drive for 400 miles approximately. However, if the level of the […]