Why does the mass change? The mass of an object does not change with speed; it changes only if we cut off or add a piece to the object. Since mass doesn’t change, when the kinetic energy of an object changes, its speed must be changing. Special Relativity (one of Einstein’s 1905 theories) deals with […]
Is gravitational force equal to weight?
Is gravitational force equal to weight? The gravitational force on Earth is equal to the force the Earth exerts on you. At rest, on or near the surface of the Earth, the gravitational force equals your weight. What two factors does gravitational force depend on? When dealing with the force of gravity between two objects, […]
What hormone raises blood sugar and increases the heartbeat and breathing rates?
What hormone raises blood sugar and increases the heartbeat and breathing rates? Adrenal-medulla Adrenaline Stimulates breakdown of glycogen to glucose, release of glucose into blood; increases rate of heartbeat and rate of respiration, Pancreas-islets of Langerhans Insulin Stimulates glucose oxidation and removal from bloodstream (storage). How do hormones in the endocrine system move around the […]
Can you capture an image formed by a convex mirror on a screen?
Can you capture an image formed by a convex mirror on a screen? Why it is not possible to capture an image formed by convex mirror ? A convex mirror, also known as a diverging mirror, as this mirror diverges light when they strike its reflecting surface. It always forms virtual, erect, and diminished images […]
What is LS coupling explain with example?
What is LS coupling explain with example? The energy levels which are characterised by certain values of L and S are called terms and the coupling of angular momenta of individual electrons to a resulting orbital angular momentum and spin is referred to as LS-coupling or Russell-Saunders coupling. Which is the selection role for LS […]
What is the heat of solution quizlet?
What is the heat of solution quizlet? heat of solution. the amount of heat absorbed or released when a solute dissolves in a specific amount of solvent. What is heat of solution measured in? The enthalpy change is observed when the solute is dissolved in the solvent. When solid or gas is dissolved in the […]
How do electromagnetic fields affect the human body?
How do electromagnetic fields affect the human body? Low-frequency magnetic fields induce circulating currents within the human body. The strength of these currents depends on the intensity of the outside magnetic field. If sufficiently large, these currents could cause stimulation of nerves and muscles or affect other biological processes. How does frequency affect the human […]
How do I know if my steering rack is part of routine maintenance?
How do I know if my steering rack is part of routine maintenance? Checking the steering box A typical steering-box layout. Check the gasket and seals for leaks, and the moving parts for wear. Measure steering-wheel travel by making a chalk mark on the rim and using your finger as a reference point. Try to […]
Why does a hollow sphere have more rotational kinetic energy?
Why does a hollow sphere have more rotational kinetic energy? Another hollow sphere of the same mass and radius is rotating about its axis through the center at the same rotation rate. Which sphere has a greater rotational kinetic energy? The hollow sphere, since the mass is distributed further away from the rotation axis. Does […]