How far back can carbon dating date? C (the period of time after which half of a given sample will have decayed) is about 5,730 years, the oldest dates that can be reliably measured by this process date to approximately 50,000 years ago, although special preparation methods occasionally make accurate analysis of older samples possible. […]
Why do we need controls?
Why do we need controls? Controls allow the experimenter to minimize the effects of factors other than the one being tested. It’s how we know an experiment is testing the thing it claims to be testing. This goes beyond science — controls are necessary for any sort of experimental testing, no matter the subject area. […]
What is the probability of production of homozygous tall offspring?
What is the probability of production of homozygous tall offspring? What is the probility of production of dwarf offsprings in a cross between two heterozygous tall pea plants ? Cross between two heterozygous tall pea plants can be shown as follows : Hence, the probability of production of drarf offsprings is 25 % and tall […]
What are the 4 factors that affect the rate of diffusion?
What are the 4 factors that affect the rate of diffusion? Several factors affect the rate of diffusion of a solute including the mass of the solute, the temperature of the environment, the solvent density, and the distance traveled. What makes a reaction reversible? Reversible Reactions After products are formed, the bonds between these products […]
Why is the strong force so strong?
Why is the strong force so strong? The strong force holds together quarks, the fundamental particles that make up the protons and neutrons of the atomic nucleus, and further holds together protons and neutrons to form atomic nuclei. As such it is responsible for the underlying stability of matter. What is most powerful force in […]
What do all atoms and ions have in common?
What do all atoms and ions have in common? Atoms vs. Ions. Atoms are neutral; they contain the same number of protons as electrons. By definition, an ion is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to […]
Why is the reverse bias current extremely small?
Why is the reverse bias current extremely small? When a diode is reverse biased, the width of the depletion region increases. Minority carriers of each material are pushed through the depletion zone to the junction. This action causes a very small leakage current to occur. What is the reverse breakdown voltage of a diode? Reverse […]
What are the advantages of modern world?
What are the advantages of modern world? For most people living in the industrialized west, some of the advantages include: Unlimited clean water and food: Convenience beyond measure: Lightning-fast transportation: Communication: Modern medicine: Access to knowledge: What are the negative effects of social media? Social media may promote negative experiences such as: Inadequacy about your […]
What is difference between flour and cornstarch?
What is difference between flour and cornstarch? Because cornstarch is pure starch, it has twice the thickening power of flour, which is only part starch. To thicken sauces, cornstarch is combined with cold water first, which is called a slurry. Flour, on the other hand, is cooked with fat and made into a roux. Is […]
Can you negotiate with insurance adjusters?
Can you negotiate with insurance adjusters? According to Nolo, Sutliff & Stout, and Findlaw.com, an insurance adjuster will often make an extremely low first offer to determine whether you know how to negotiate or understand the value of your car. Even if the offer seems reasonable at first glance, you should always negotiate. What happens […]