Why does rain make me feel safe? Studies have found that when rain sounds enters people’s brain, brain unconsciously relaxes and produces alpha waves, which are very close to the state of brain when human sleeps. Rain sound is generally between 0 and 20 kHz. It is not upsetting. On the contrary, this sound makes […]
Does helium go bad?
Does helium go bad? No, helium does not expire. You must close the valve tightly or helium will leak over time. Are Balloon Time tanks recyclable? What weight can helium lift? Helium atoms weigh less than the oxygen and nitrogen atoms in the air. Helium has a lifting force of about one gram per litre. […]
Did Newton agree with Galileo?
Did Newton agree with Galileo? Galileo determined the laws of gravity and explored the laws of motion on earth. Newton first conclusively affirmed the laws of motion and linked them with Kepler’s laws of planetary motion. Galileo had suggested this, but was censored by the Church before he was able to do further work to […]
What happens to the size of pupil of our eye in I Dim Light II bright light?
What is transistor action?
What is transistor action? So in a NPN Transistor it is the movement of negative current carriers (electrons) through the Base region that constitutes transistor action, since these mobile electrons provide the link between the Collector and Emitter circuits. How many electrons are there in a transistor? There are about 6.24×1018 electrons per Coulomb, so […]
When approaching a railroad crossing with flashing lights you must quizlet?
When approaching a railroad crossing with flashing lights you must quizlet? Flashing red lights, lowered crossing gates and/or a bell at a railroad crossing indicate that you must stop, at least 15 feet (5 m) from the tracks. Do not go across the tracks until the lights and bell have stopped and the crossing gates […]
What is the least reactive element?
What is the least reactive element? Noble gases Which of these parts of an atom is the smallest? Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. What are the […]
Where would your mass be greatest?
How do you calculate exponential population growth?
How do you calculate exponential population growth? From the given data, we can conclude the initial population value, x0, equals 10,000. Also, we have the growth rate of r = 5%. Therefore, the exponential growth formula we should use is: x(t) = 10,000 * (1 + 0.05)t = 10,000 * 1.05t . What is exponential […]
What is the newest food pyramid?
What is the newest food pyramid? The most recent update of the Dietary Guidelines came out in 2020, and it uses an updated MyPlate visual model. The 2020 MyPlate model, shown below, shows a plate containing the five food groups (fruits, vegetables, proteins, grains, and dairy) in a place setting. Which food group should you […]