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What are two reasons why absorbance measurements are taken at lambda max?
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If the volume of the water could be measured very accurately there would still be uncertainty in the mass of the wate. What source of error have we not taken in account?
Probable you think to the evaporation during measurements.
What technologies discovered the big bang theory?
Edwin Hubble, using the Hubble telescope, is credited with the discovery that the distances to far away galaxies were generally proportional to their redshifts (as in the doppler effect); an idea which was originally predicted by Lemaître in 1927. Hubble's observation was taken to indicate that all very distant galaxies and clusters have an apparent velocity directly away from our vantage point: the farther away, the higher the apparent velocity. Other supportive evidence for the big bang Theory - Cosmic Microwave Background Radiation has been discovered via WMAP mission and it is suggested that this has been left over from the Big Bang and galactic clusters are still moving away from each other at an ever increasing acceleration. WMAP's measurements played the key role in establishing the current Standard Model of Cosmology: the Lambda-CDM model. In the Lambda-CDM model of the observable universe, the age of the observable universe is 13.772 ± 0.059 billion years.
What is the value of density and its uncertainty?
Density is measured in units of mass per unit volume, such as grams/cubic cm, or lbs/gallon. As for the uncertainty, that depends on how accurate your equipment is and how careful you have been in ensuring that you have taken the measurements accurately.
What blood measurements are taken of the left ventricle during a cardiac catheterization?
A comparison of how much blood is ejected from the heart's left ventricle during its contraction phase with a measurement of blood remaining at the end of the left ventricle's relaxation phase.
Is measuring the femur bone in an ultrasound an accurate way to give you an estimated time of conception?
The best person to ask is the person doing the ultrasound. Having said that here are a few guidelines. Ultrasounds can give you a fairly accurate time for the length of the pregnancy. Before 10 weeks the measurement taken is crown-rump length, from the top of the head to the bottom of the spine. This is accurate to within 3-4 days. After about 12 weeks several measurements are taken, head circumference, head diameter and abdominal diameter as well as femur length and the results are plotted on a graph to compare with the estimated length of pregnancy. The earlier the measurements are taken the more accurate they are in assessing the length of the pregnancy.
What two measurements are taken during and after an earthquake?
An foreshocks and aftershocks
What is a fixed point?
A set point where all measurements can be taken from
Measurements taken from space show the earth to be?
a perfect sphere
What were the officials who measured the depth of the River Nile?
In its very long history and given it flows over 4,000 miles through different countries, there must have been thousands of measurements taken for hundreds of reasons.
What is a fixed reference point?
A set point where all measurements can be taken from
How warm is a tornado on the inside?
That is not known. Not enough measurements have been taken.
What is statistical unit?
It is the unit - person, household, object - for which measurements are taken.
What is the difference between direct and indirect measurement?
Direct is an exact measurement and indirect is an estimate.
Two measurements that could be taken to determine a organism's size?
length and weight
What medication requires measurement?
There are quite a few medications that require physiological measurements. Any medication required for a mental illness for example requires these measurements to be taken.
What instruments are used to make maps?
measurements taken by a blank are used to make maps
How do you calculate the equilibrium?
k=[A+][Q-]/[AQ] these measurements must be taken at saturation of course.
