Does phosphorus move in the soil?

Does phosphorus move in the soil? Because phosphorus is very immobile in the soil, it does not move very far in the soil to get to the roots. Diffusion to the root is only about 1/8 of an inch per year, and relatively little phosphorus in soil is within that distance of a root. Therefore […]

How do you calculate radionuclide activity?

How do you calculate radionuclide activity? Activity = λN. = (0.693/8 days) x (1/86,400 sec/day) x (3 x 1017 atoms) = 3 x 1011 atoms/sec I-131. = 3 x 1011 dps I-131. How is radioactive decay measured? Radioactive decay shows disappearance of a constant fraction of. activity per unit time. Half-life: time required to decay […]

What is the value of R in PV nRT?

What is the value of R in PV nRT? 8.314 J/mol What does P mean in PV nRT? pressure What is value of gas constant R? Constant Value Units R 0.08206 L·atm/K·mol R 8.3145 J/K·mol R 1.9872 cal/K·mol Vm 22.414 L/mol What is the value for R? The value of R at atm that is […]

How do you balance the center of mass?

How do you balance the center of mass? For example, the center of mass for a hula hoop is in its empty middle. On a skewer, place one marshmallow in the middle and one on each end. Place the tip of your finger under the middle marshmallow and try to balance the structure on your […]

What is data missing at random?

What is data missing at random? When we say data are missing completely at random, we mean that the missingness is nothing to do with the person being studied. When we say data are missing at random, we mean that the missingness is to do with the person but can be predicted from other information […]

Which is not a drawback of using fossil fuels?

Which is not a drawback of using fossil fuels? Answer: A) They release radioactive waste. Explanation: Fossil fuels are non renewable resources do not release radioactive wastes / materials, but they do release greenhouse gases, causing air pollution. What is a major disadvantage of many alternatives fuels? Biodiesel cars. One of the major cons of […]

What is Newton in KG?

What is Newton in KG? The newton is equal to the amount of force needed to accelerate a one kilogram mass at a rate of one meter per second squared. 1 newton (N) = 0.101971621 kilogram-force (kgf) = 0.224808943 pounds force (lbf) How many grams are in a Newton? 101.9716213 grams How do you convert […]

Is there a gene allele for tallness in humans?

Is there a gene allele for tallness in humans? For most individuals, though, height is controlled largely by a combination of genetic variants that each have more modest effects on height, plus a smaller contribution from environmental factors (such as nutrition). More than 700 such gene variants have been discovered and many more are expected […]

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