What organ is active at 3AM? 3AM – 5AM | LUNGS The Lungs regulate breathing, distribute oxygen to the blood, and govern our immune system by circulating the body’s Defensive Qi. Is getting up at 4AM healthy? Dr. Charles A. Czeisler, a professor of sleep medicine at Harvard Medical School, calls early rising a “performance […]
On what factors does the kinetic energy depends?
On what factors does the kinetic energy depends? The amount of translational kinetic energy (from here on, the phrase kinetic energy will refer to translational kinetic energy) that an object has depends upon two variables: the mass (m) of the object and the speed (v) of the object. The following equation is used to represent […]
What sunset symbolizes in life?
What is the formula for calculating half-life?
What is the formula for calculating half-life? How to calculate the half-life Determine the initial amount of a substance. For example, N(0) = 2.5 kg . Determine the final amount of a substance – for instance, N(t) = 2.1 kg . Measure how long it took for that amount of material to decay. Input these […]
What are the uses of convex and concave lens?
What are the uses of convex and concave lens? Uses of convex lens and concave lens it is used in Magnifying glass. used in cameras. used in microscopes for magnification. used in reflective telescopes. What is concave lens and its uses? Concave lenses are most commonly used to correct myopia which is also called near-sightedness. […]
What is the difference between a dependent and an independent variable?
What is the difference between a dependent and an independent variable? You can think of independent and dependent variables in terms of cause and effect: an independent variable is the variable you think is the cause, while a dependent variable is the effect. In an experiment, you manipulate the independent variable and measure the outcome […]
How do you explain thrust to a child?
What is wrong with speeding?
What is wrong with speeding? The problem of speeding: As crash speeds get very high, airbags and seat belts do not work as well to keep passengers safe2. Speed influences the risk of crashes and crash injuries in three basic ways2: By the time the driver realizes he/she needs to react, they’ve traveled closer to […]
What causes the velocity of an object to change?
What causes the velocity of an object to change? Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes […]
Why is thallium used in NaI detector?
Why is thallium used in NaI detector? Thallium activated NaI and CsI crystals are commonly used, as well as a wide variety of plastics. The high Z of iodine in NaI gives good efficiency for gamma ray detection. A small amount of Tl is added in order to activate the crystal, so that the designation […]