Which method of assessing body fat percentage involves an electric current? Bioelectrical Impedance Analysis (BIA) Electrical currents move through muscle easier than fat due to the higher water content of muscle ( 12 ). Which of the following hormones is produced in fat tissue and helps regulate body fat by signaling the brain to reduce […]
What is the rate of energy transfer called?
What are the requirements for heat transfer to occur?
What are the requirements for heat transfer to occur? Heat can travel from one place to another in three ways: Conduction, Convection and Radiation. Both conduction and convection require matter to transfer heat. If there is a temperature difference between two systems heat will always find a way to transfer from the higher to lower […]
Why do electrons do not fall in nucleus?
Why do electrons do not fall in nucleus? Quantum mechanics states that among all the possible energy levels an electron can sit in the presence of a nucleus, there is one, which has THE MINIMAL energy. This energy level is called the ground state. So, even if atoms are in a very very called environment, […]
What is the angle between the two vectors?
What is the angle between the two vectors? “Angle between two vectors is the shortest angle at which any of the two vectors is rotated about the other vector such that both of the vectors have the same direction.” Furthermore, this discussion focuses on finding the angle between two standard vectors, which means their origin […]
Is there a relationship between speed and acceleration?
Is there a relationship between speed and acceleration? Speed is the distance covered in a unit of time while acceleration is the rate of change of speed. The unit of speed in the metric system is meters per second (m/s) while that of acceleration is meters per second squared (m/s2). Speed is a scalar quantity […]
What are the rules for a series circuit?
What are the rules for a series circuit? In summary, a series circuit is defined as having only one path through which current can flow. From this definition, three rules of series circuits follow: all components share the same current; resistances add to equal a larger, total resistance; and voltage drops add to equal a […]
Are we made of waves?
Are we made of waves? Radio waves are obviously waves. Only when we come close do we notice that this object is actually a wave. Summary: With quantum theory, we find a beautiful unification: instead of there being two fundamental entities (particles and waves), there is only one fundamental entity: waves. Does Matter diffract? All […]
What are the three ways in which heat can flow from one object to another?
What are the three ways in which heat can flow from one object to another? Heat can be transferred in three ways: by conduction, by convection, and by radiation. Conduction is the transfer of energy from one molecule to another by direct contact. Convection is the movement of heat by a fluid such as water […]
Why does temperature pressure and density decrease with altitude?
Why does temperature pressure and density decrease with altitude? Altitude is height above sea level. The density of air decreases with height. There are two reasons: at higher altitudes, there is less air pushing down from above, and gravity is weaker farther from Earth’s center. So at higher altitudes, air molecules can spread out more, […]