Mechanical waves are classified according to transverse waves.
Answer:
t=(70)ln(19.9/20)/-ln2
70 is the years. 19.9 kg is what is left after 0.1kg decay. 20kg is your initial amount.
t=0.506 years with a decay constant of 0.0099021/year
Explanation:
The number of grams of Mgo that are produced is calculated as follows
calculate the moles of Mg used
that is moles =mass/molar mass
= 3.45 g/ 24.305g/mol = 0.142 moles
write the equation for reaction
that is 2 Mg + O2 = 2 MgO
by use of mole ratio between Mg to Mgo which is 2:2 this implies that the moles of Mgo is also 0.142 moles
mass of Mgo= moles x molar mass of MgO
molar mass of Mgo = 24.305 + ( 3x15.999) = 72.302 g/mol
mass= 0.142 mol x 72.302 g/mol= 10.27 grams
A molecule of acetonitrile ch3cn contains 5 sigma bonds and 2 pi bonds.
What is acetonitrile?
Acetonitrile is a nitrile which is hydrogen cyanide where the hydrogen (H) is replaced by a methyl group (-CH 3 ). Acetonitrile is a volatile organic compound. it is also called Cyanomethane.
To know more about acetonitrile go to the given link :
brainly.com/question/14900816
Answer:
Yes, the data supports the researchers hypothesis.
Explanation:
From the given data, in all the cases except the fanning event in females, the fish parents which was fed full ration appeared.
Take for example, 30.7 mouthing events in males given full ration as opposed to 24.5 events when they were fed on half ration.
