Answer:
Anaerobic Threshold (AT) heart rate observed for the 100m and 200m sprinters were 178.4 (+ 1.4) and 180.1 (1.9) beats.
Explanation:
Average peak heart rate attained during running were 199.6 (+ 1.7), 199.4 (+ 2.1), 197.6 (3.1), 198.3 (+ 2.4) and 199.3 (13.6) beats. min-1 respectively for 100m, 200m, 400m, 1500m and 5000m. Anaerobic Threshold (AT) heart rate observed for the 100m and 200m sprinters were 178.4 (+ 1.4) and 180.1 (1.9) beats.
Answer:
42
Explanation:
Atoms have a neutral charge overall, which means they have an equal numbers of positively-charged protons and negatively-charged electrons. Here, an atom of arsenic with 33 electrons must also have 33 protons.
The mass of any atom is contained in its <em>nucleus</em>, a part made up of protons and neutrons - particles with no charge. Both protons and neutrons are exactly 1 atomic mass unit each, so to find the atomic mass of an atom, we can use the formula
(# of protons) + (# of neutrons) = atomic mass
or equivalently:
atomic mass - (# of protons) = (# of neutrons).
For arsenic, we have an atomic mass of 75 amu and 33 protons, so using our formula:
# of neutron = 75 - 33 = 42 neutrons
Minerals are naturally-formed substances that have a specific chemical properties: abiogenic (minerals are not produced by or derived from living organisms, non-organic in origin), stable at room temperature (i.e. at 25 degrees C)
, are represented by a known chemical formula
, have an ordered atomic arrangement/structure. Coal is not classified as a mineral because it is an organic substance. Correct answer: D (coal is formed from the remains of dead plants and animals).
A hollow sphere and that has ellipsoid, tube, and many other shapes. it has 60 carbon atoms, this form of carbon is named in recognition.
