How did milikans oil drop experiment change scientists view of the atom?

How did milikans oil drop experiment change scientists view of the atom?
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In the Millikan oil-drop experiment the UPWARD force on the drop is due to the: w) gravitational and electric fields x) gravitational field and the charge on the drop y) electric field and the size of the drop z) electric field and the charge on the drop

Description : In the Millikan oil-drop experiment the UPWARD force on the drop is due to the: w) gravitational and electric fields x) gravitational field and the charge on the drop y) electric field and the size of the drop z) electric field and the charge on the drop

Last Answer : ANSWER: Z -- ELECTRIC FIELD AND THE CHARGE ON THE DROP 

What do scientists write after an experiment which summerizes their experiment and results?

Description : What do scientists write after an experiment which summerizes their experiment and results?

Last Answer : Need Answer

How do scientists ensure the validity of their conclusions when performing an experiment?

Description : How do scientists ensure the validity of their conclusions when performing an experiment?

Last Answer : What is the answer ?

What do scientists do if the resultsb of the experiment do not support a hypothesis?

Description : What do scientists do if the resultsb of the experiment do not support a hypothesis?

Last Answer : Need answer

Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Description : Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Last Answer : ANSWER: B

Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Description : Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Last Answer : ANSWER: B

Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Description : Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Last Answer : ANSWER: B

Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Description : Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Last Answer : ANSWER: B

Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Description : Recently a group of scientists successfully cloned eight calves from the cells of a single cow. The experiment took place in: A. Japan B. Britain C. Switzerland D. USA

Last Answer : ANSWER: B

Generally a scientist's observations related to Experiment and testing are based on Options: A) Scientific principles B) House hold rules C) Self-imagination D) Self-experiences

Description : Generally a scientist's observations related to Experiment and testing are based on Options: A) Scientific principles B) House hold rules C) Self-imagination D) Self-experiences

Last Answer : A) Scientific principles

How did scientists change society’s view of smoking after 1960?

Description : How did scientists change society’s view of smoking after 1960?

Last Answer : -- they showed that smoking causes cancer :)kymmie

In an experiment to prepare the temporary mount of leaf peel, staining of leaf peel is done before putting a drop of glycerine. Explain why?

Description : In an experiment to prepare the temporary mount of leaf peel, staining of leaf peel is done before putting a drop of glycerine. Explain why?

Last Answer : Answer. Staining is meant to highlight the structures. Once glycerin is poured, it forms a protective layer the keeps it moistened. This is why first the peel is stained then glycerin is put over.

Could scientists perfectly simulate the entire universe in a computer, down to the last atom? -Physics

Description : Could scientists perfectly simulate the entire universe in a computer, down to the last atom? -Physics

Last Answer : No. Even with an incredibly powerful computer, scientists could never perfectly simulate the entire universe in a computer. There are a few reasons for this. 1. The universe is non- ... this event because of our fundamentally limited knowledge of the current state of the entire universe.

Which of the following scientists first determined the atomic number of an atom by use of X-rays? Is it: w) Millikan x) Planck y) Thompson z) Moseley

Description : Which of the following scientists first determined the atomic number of an atom by use of X-rays? Is it: w) Millikan x) Planck y) Thompson z) Moseley

Last Answer : ANSWER: Z -- MOSELEY

When scientists make an animal superior by view of genotype, introducing some foreign genes in it, is called (a) immunization (b) genetic engineering (c) tissue culture (d) biotechnology.

Description : When scientists make an animal superior by view of genotype, introducing some foreign genes in it, is called (a) immunization (b) genetic engineering (c) tissue culture (d) biotechnology.

Last Answer : (b) genetic engineering

In the Gold foil experiment of Geiger and Marsden, that paved the way for Rutherford’s model of an atom, ~ 1.00% of the α-particles were found to deflect at angles > 50º. If one mole of α- -Science

Description : In the Gold foil experiment of Geiger and Marsden, that paved the way for Rutherford’s model of an atom, ~ 1.00% of the α-particles were found to deflect at angles > 50º. If one mole of α- -Science

Last Answer : Total number of α particles used for bombardment = 1 mole 1 mole=6.022×1023 particles number of α particles deflected at angles greater than 50°(>50°)= 1% Number of α particles ... at angles less than 50°= 99/100 × 6.022 × 1023 =5.96 × 1023

Who was the first scientist whose alpha particle scatterring experiment led him to conclude that the the nucleus of an atom contains a dense center of positive charge is?

Description : Who was the first scientist whose alpha particle scatterring experiment led him to conclude that the the nucleus of an atom contains a dense center of positive charge is?

Last Answer : The experiments were being done by Ernest Marsden, and HansGeiger, under the supervision of Ernest Rutherford.

Why was Dalton's model of the atom changed after Thomson experiment?

Description : Why was Dalton's model of the atom changed after Thomson experiment?

Last Answer : Thomson discovered that the atom is made of electrons

What experiment did Robert Boyle do for atom?

Description : What experiment did Robert Boyle do for atom?

Last Answer : Need answer

In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the following conclusions. It was concluded that: w) the charge of an electron is negative x) the nucleus of a gold atom carries all its charge y) most of the mass of a gold atom is in its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom

Description : In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the ... its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom

Last Answer : ANSWER: Y -- MOST OF THE MASS OF A GOLD ATOM IS IN ITS NUCLEUS

Why did America drop the atom bomb on the cities of Hiroshima and Nagasaki? -SST 10th

Description : Why did America drop the atom bomb on the cities of Hiroshima and Nagasaki? -SST 10th

Last Answer : The USA dropped atom bomb on Hiroshima and Nagasaki because: (i) to take the revenge of the humiliation of the attack on the Pearl Harbour by Japan on December 7, 1941, and (ii) to ... Islands of South West Pacific China, Manchuria and other places from Japanese control and to end the fighting.

Nucleus of an atom resembles with a drop of liquid. Density of nucleus is very high, i.e., `10^(8)` tonne/cc or 130 trillion tonnes `m^(-3)`. This den

Description : Nucleus of an atom resembles with a drop of liquid. Density of nucleus is very high, i.e., `10^(8)` tonne/cc or 130 trillion tonnes `m^(-3)`. This den

Last Answer : Nucleus of an atom resembles with a drop of liquid. Density of nucleus is very high, i.e., `10^(8)` tonne/cc or 130 ... `A^(1//3)` C. `[A]^(3)` D. A

Nucleus of an atom resembles with a drop of liquid. Density of nucleus is very high, i.e., `10^(8)` tonne/cc or 130 trillion tonnes `m^(-3)`. This den

Description : Nucleus of an atom resembles with a drop of liquid. Density of nucleus is very high, i.e., `10^(8)` tonne/cc or 130 trillion tonnes `m^(-3)`. This den

Last Answer : Nucleus of an atom resembles with a drop of liquid. Density of nucleus is very high, i.e., `10^(8)` tonne/cc or ... `10^(13) : 1` D. `10^(12) : 1`

Film boiling is usually not desired in commercial equipments, because (A) The heat transfer rate is low in view of the large temperature drop (B) It is difficult to maintain (C) It is not economic (D) None of these

Description : Film boiling is usually not desired in commercial equipments, because (A) The heat transfer rate is low in view of the large temperature drop (B) It is difficult to maintain (C) It is not economic (D) None of these

Last Answer : (A) The heat transfer rate is low in view of the large temperature drop

Who received the Nobel Prize in Physics in 1923 for his experiment which measured the charge of the electron. The experiment consisted of allowing drops of oil which had become charged to fall in an electric field.

Description : Who received the Nobel Prize in Physics in 1923 for his experiment which measured the charge of the electron. The experiment consisted of allowing drops of oil which had become charged to fall in an electric field.  

Last Answer : ANSWER: (ROBERT ANDREWS) MILLIKAN

What is the accepted view of the placement of electrons in an atom?

Description : What is the accepted view of the placement of electrons in an atom?

Last Answer : Feel Free to Answer

Why A 40 pressure drop across an oil filter screen indicates that the?

Description : Why A 40 pressure drop across an oil filter screen indicates that the?

Last Answer : Need answer

A small drop of oil spreads over water because :

Description : A small drop of oil spreads over water because :

Last Answer : water has higher surface tension

Ail oil drop spreads over water because (1) oil is lighter than water (2) oil is more viscous (3) oil does not mix with water (4) surface tension of oil is much smaller than that of water

Description : Ail oil drop spreads over water because (1) oil is lighter than water (2) oil is more viscous (3) oil does not mix with water (4) surface tension of oil is much smaller than that of water

Last Answer : (4) surface tension of oil is much smaller than that of water Explanation: Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. It is ... is caused by cohesion of similar molecules, and is responsible for many of the behaviors of liquids.

A small drop of oil spreads over water because : (1) oil has a higher surface tension (2) water has a higher surface tension (3) oil has a higher viscosity (4) water has a higher viscosity

Description : A small drop of oil spreads over water because : (1) oil has a higher surface tension (2) water has a higher surface tension (3) oil has a higher viscosity (4) water has a higher viscosity

Last Answer : (2) water has a higher surface tension Explanation: Dispersion is used to separate a beam of white light into its constituent spectrum of colours. This phenomenon leads to rainbow.

Fuel oil is subjected to visbreaking to reduce its (A) Pour point (B) Viscosity (C) Pressure drop on pumping (D) All (A), (B) and (C

Description : Fuel oil is subjected to visbreaking to reduce its (A) Pour point (B) Viscosity (C) Pressure drop on pumping (D) All (A), (B) and (C

Last Answer : (D) All (A), (B) and (C

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because (A) Its calorific value is very less (B) Tar neutralises the residual acids present in pitch (C) It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop (D) All (A), (B) and (C)

Description : Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because (A) Its calorific value is very less (B) Tar neutralises the residual acids ... for its transportation through pipelines at economic pressure drop (D) All (A), (B) and (C)

Last Answer : (C) It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop

What type of wholesaler is most often used for large -volume purchases of bulky goods like coal, oil, and chemicals? A)A rack jobber B)A truck wholesaler C)A drop shipper D)A cash -and -carry wholesaler E)A bulk distributor

Description : What type of wholesaler is most often used for large -volume purchases of bulky goods like coal, oil, and chemicals? A)A rack jobber B)A truck wholesaler C)A drop shipper D)A cash -and -carry wholesaler E)A bulk distributor

Last Answer : C)A drop shipper

A small drop of oil spreads over water because : (1) oil has a higher surface tension (2) water has a higher surface tension (3) oil has a higher viscosity (4) water has a higher viscosity

Description : A small drop of oil spreads over water because : (1) oil has a higher surface tension (2) water has a higher surface tension (3) oil has a higher viscosity (4) water has a higher viscosity

Last Answer : water has a higher surface tension

An oil drop spreads over water because (1) oil is lighter than water (2) oil is more viscous (3) oil does not mix with water (4) surface tension of oil is much smaller than that of water

Description : An oil drop spreads over water because (1) oil is lighter than water (2) oil is more viscous (3) oil does not mix with water (4) surface tension of oil is much smaller than that of water

Last Answer : surface tension of oil is much smaller than that of water

Scientists can now determine which weather events were caused by, or made worse by, human-produced emissions. Will this finally put to rest the political partisanship over Climate Change -- something which should be matter of science?

Description : Scientists can now determine which weather events were caused by, or made worse by, human-produced emissions. Will this finally put to rest the political partisanship over Climate Change -- something which should be matter of science?

Last Answer : No. Because the non-science types (the deniers, the creationist, the god-wills-it types, and the republicans) won’t accept the science, because they think it will be tainted. That population never lets facts get in the way of a belief, no matter how erroneous the belief.

If it could be proven one way or another that God is false or that what scientists believe is false, how would it change you?

Description : If it could be proven one way or another that God is false or that what scientists believe is false, how would it change you?

Last Answer : I suppose I would trust an all-knowing God to know why I believe as I do and why I act as I do. In which case He (or She) would forgive me for not being a believer. It wouldn't change what ... make the world a better place. If Science was proved to be correct, there wouldn't be any problem for me.

Suppose that scientists came with indisputable evidence that God exists. Would you, being a non-believer, change your mind and 'convert' to being a believer?

Description : Suppose that scientists came with indisputable evidence that God exists. Would you, being a non-believer, change your mind and 'convert' to being a believer?

Last Answer : If the evidence is truly indisputable, then yes, I’m not going to dispute the indisputable evidence.

Why did scientists in 1944 change their minds regarding the existence of psi?

Description : Why did scientists in 1944 change their minds regarding the existence of psi?

Last Answer : More details, please. Which psi are you speaking of?

How did the scientific method change the way scientists worked beginning in the 16 th century?

Description : How did the scientific method change the way scientists worked beginning in the 16 th century?

Last Answer : Need answer

If your experiment does not support your hypothesis you should change your data to give support to the hypothesis. True False?

Description : If your experiment does not support your hypothesis you should change your data to give support to the hypothesis. True False?

Last Answer : False- The hypothesis is your prediction of what you expect tohappen. If the data does not agree with your hypothesis you simplyexplain why your hypothesis did not come true and possiblyinvestigate variable which would allow your hypothesis to cometrue.

In an experiment there are two groups what group does not change in any way?

Description : In an experiment there are two groups what group does not change in any way?

Last Answer : What is the answer ?

In an experiment on studying the dependence of current flowing through a given resistor on the potential difference applied across it, list two ways how a student would change the values of current in the circuit?

Description : In an experiment on studying the dependence of current flowing through a given resistor on the potential difference applied across it, list two ways how a student would change the values of current in the circuit?

Last Answer : Answer. There are two ways in which a student can change the values of current in the circuit: By increasing or decreasing the number of cells. By changing the value of resistance.