What are elements 57 70 called? rare earths What are elements 89 102 called? actinide series What are examples of actinides? The most abundant or easily synthesized actinides are uranium and thorium, followed by plutonium, americium, actinium, protactinium, neptunium, and curium. What is the lightest actinide? Protactinium What do you call the element from atomic […]
What two things started Earth?
What two things started Earth? When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle and a solid crust. Why […]
What does it mean when a nucleus is stable?
What does it mean when a nucleus is stable? Definition. Nuclear stability means that the nucleus of an element is stable and thus it does not decay spontaneously emitting any kind of radioactivity. Those nuclei with the highest binding energy per nucleon are the most stable with respect to destructive nuclear reactions. What is the […]
Why is Nhst bad?
Why is Nhst bad? NHST is unsuitable for large datasets Most NHST studies rely on nil null hypothesis testing (Nickerson, 2000) which means that H0 expects a true mean difference of exactly zero between conditions with some variation around this true zero mean. The p-value is smaller if the test statistic is larger. Why is […]
What are the benefits of subject design?
What are the benefits of subject design? The main advantage that the within subject design has over the between subject design is that it requires fewer participants, making the process much more streamlined and less resource heavy. For example, if you want to test four conditions, using four groups of 30 participants is unwieldy and […]
Does all the ice melt calorimetry?
Does all the ice melt calorimetry? Once all the ice has melted, the temperature of the liquid water rises, absorbing heat at a new constant rate. At 100oC the water begins to boil….Heat and Change in Physical State. Substance Mercury Melting Point (oC) –38.9 ΔHfus, (J/g) 11.8 Boiling Point (oC) 357 ΔHvap (J/g) 272 When […]
What is one of the most important developmental tasks in late adulthood?
What is one of the most important developmental tasks in late adulthood? Newman and Newman (2012) identify developmental tasks as areas of learning for most people in modern society. They associate the stage of later adulthood (60 to 75) with such tasks as accepting one’s life, redirecting energy toward new roles, promoting intellectual vigor and […]
When a slab of dielectric medium is placed between plates of a parallel plate capacitor which is connected with a battery then the charge on plates in comparison with earlier charge?
When a slab of dielectric medium is placed between plates of a parallel plate capacitor which is connected with a battery then the charge on plates in comparison with earlier charge? Two identical capacitors are connected as shown in the figure. A dielectric slab is introduced between the plates of one of the capacitors so […]
Is the Carnot cycle 100% efficient?
Is the Carnot cycle 100% efficient? No,, never . It can be 100℅ only if the sink temperature is zero or the source temperature is infinite (very large value). Carnot is an ideal cycle is provides benchmark to compare efficiency of other cycles. Carnot efficiency is the maximum efficiency that can be achieved in a […]
What temperature should I wash white bed sheets on?
What temperature should I wash white bed sheets on? Use the hottest water setting on your washing machine that’s safe for the material. Polyester blends are best washed using warm water, while cotton can tolerate hot water. Hotter water kills the most germs and takes care of dust mites that thrive in bedding. How long […]