Why is it much easier to stop blood flowing from a vein than an artery? Have thinner walls and lower pressure on the inside. The lower pressure can make it more difficult for the blood to return to the heart, so veins have one-way valves in them to prevent blood from pooling or flowing backward […]
Does microwaves or infrared have higher energy?
Does microwaves or infrared have higher energy? The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of […]
Is there any empty space in the human body?
Is there any empty space in the human body? Originally Answered: What percentage of your body is empty space? So, the average 70kg human constitutes 7*10^27 atoms, and atoms are very vastly made up of empty space, and therefore the human body is roughly 99.9999999% empty space. Can two things ever touch? In real life, […]
What are the four exceptions to confidentiality?
What are the four exceptions to confidentiality? Most of the mandatory exceptions to confidentiality are well known and understood. They include reporting child, elder and dependent adult abuse, and the so-called “duty to protect.” However, there are other, lesserknown exceptions also required by law. Each will be presented in turn. What is the punishment for […]
What happens if no one gets 270 electoral votes 2020?
What happens if no one gets 270 electoral votes 2020? A candidate must receive an absolute majority of electoral votes (currently 270) to win the presidency or the vice presidency. If no candidate receives a majority in the election for president or vice president, that election is determined via a contingency procedure established by the […]
What are the 9 basic process skills?
What are the 9 basic process skills? Schools (hereafter known as the K-6 Science Competency Continuum) (Mechling, Bires, Kepler, Oliver & Smith, 1983), the proposed test planned to measure the following process skills: (1) observing, (2) classifying, (3) inferring, (4) predicting, (5) measuring, (6) communicating, (7) using space-time relations, (8) … What are the 5 […]
Is 0.5 elastic or inelastic?
What happens at the beginning of every roller coaster ride 2 does the roller coaster ever get higher than the first hill?
What happens at the beginning of every roller coaster ride 2 does the roller coaster ever get higher than the first hill? By conservation of energy, the potential energy will decrease and transform into kinetic energy. When the roller coaster has just passed the first “valley”, it has a lot of kinetic energy, so it […]
What will happen to an air filled balloon in helium?
What will happen to an air filled balloon in helium? One is that atmospheric pressure is dramatically reduced at high altitudes, so a helium balloon expands as it rises and eventually explodes. If you inflate a balloon beyond its limits at room temperature, it will break into small pieces up to about ten centimetres long. […]
Is heat given off during condensation?
Is heat given off during condensation? An exothermic reaction gives off heat energy. Condensation is the process by which water vapor turns into liquid water. This typically occurs when water vapor molecules come into contact with cooler molecules. This causes the water vapor molecules to lose some energy as heat. What can cause the substance […]