4,347 Answered Questions for the topic Science

Science

02/21/24

How many licks does it take to get to the center of a Tootsie Roll Pop? (silly question)
Remember the TV commercials....
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Science Physics

02/06/24

Carly was swimming in a river. She swam a total of 884meters downstream at a constant velocity. She swam one-quarter of that distance in 13minutes. What was her velocity?
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02/02/24

Climate Science Air Pressure Questions!
1) Under normal atmospheric conditions, what is the relationship between air pressure and air temperature?A) there is no relationship between air temperature and moistureB) warmer air holds more... more
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Science Chemistry

02/02/24

The activation energy for the diffusion of carbon in coper is

The activation energy for the diffusion of carbon in copper is 200,000 J/mol. Calculate the diffusion coefficient in Å2/s at 300°C, given that the diffusion coefficient at 1000°C is... more
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Science Chemistry

01/30/24

Chemistry Conversions
knowing that a proton weighs 1 mass unit and a neutron weighs one mass unit. write the 4 conversion factors you can derive from these equalities. you know that a carbon atom contains 6 protond and... more
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01/25/24

Center of Mass During the Pullup
Hello,I'm trying to figure out the physics behind different pullup techniques. I read an article online that stated if you change your COM, you can effectively make the pullup easier. Physics of... more
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01/23/24

Do Broadband Vibrations affect the de Broglie wavelength of Lattice Like Materials (e.g Graphene)
I have a random but curious thought that I was wondering if it can be answered extensively.I would like to know what would happen if a Lattice like material (e.g Graphene) were to be exposed to an... more
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Science Biology

01/23/24

Cell structures
Neurones are cells that transmit electrical signals throughout the body. This requires a lot of energy. They also synthesise (make) proteins, which help them to communicate with other neurones... more
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01/21/24

Displacement Question
Answer the following questions about path A in the figure. A city block is a square of l= 115 m on each side.Total Distance Traveled in meters: 460Magnitude of Displacement in meters: 363.7What is... more
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01/21/24

What is 1.68*10^13 m to Tm?
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01/20/24

Multiplication Error
My answer is 0.7142 but my professor says I am off by 1/2. I tried multiplying my answer by 1/2 but I was still wrong. How do I solve that?
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Science Chemistry

01/15/24

How come original charges disappear when ionic chemical formulas are calculated? For example, Na+ and O2- become Na2O or Al3+ and Cl- become AlCl3
How come original charges disappear when ionic chemical formulas are calculated? For example, Na+ and O2- become Na2O or Al3+ and Cl- become AlCl3
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Science Physics

01/14/24

Does a solid, like a night stand, vibrate macroscopically because the atoms and molecules that make up the solid vibrate?
We know particles that make up solids vibrate, but do the solids vibrate themselves because of that? Like a structure or object like a night stand, does that night stand vibrate macroscopically... more
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Science Biology

01/14/24

When it’s said that humans are classified as animals, is it saying that humans are non human animals?

Animals by the definition of how the word in used in conversation. Is it stating humans are non human animals? Or just based off certain characteristics that humans have and that animals also have?
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Science Physics

01/12/24

Do solid objects or structures vibrate as a whole macroscopically?

I know particles vibrate in a solid microscopically, but the solid object itself does not vibrate right? Does the microscopic vibrations cause the solid object to vibrate macroscopically?
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Science Chemistry

01/11/24

Names and Formulas of Ionic Compounds
Why do these elements in the formulas need to be in parentheses?Ba3(PO4)2(NH4)2OFe(ClO)3
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01/11/24

Interesting friction physics problem

The following task was discussed on an internet site, and I also became curious about its solution, but I simply can't figure it out: On a horizontal, rough table, the coefficient of sliding... more
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01/11/24

Variable capacitor
I came across an interesting task in a post:A variable capacitor, whose initial capacity is C, is charged to a voltage U and then short-circuited through a resistor R.1. Determine the ratio of the... more
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01/09/24

Hey what do you find in a tutor that I need to know about?
There no wrong answer!
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01/06/24

Make a Cladogram
Make a cladogram for these flowers: Thunbergia erecta, Plumbago auriculata, Hibiscus rosa-sinensis, Camellia japonica 'Elegans', Catharanthus roseus, Ixora coccinea 'Peach Delight', Spathiphyllum... more
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Science Biology Botany

12/19/23

Create a Phylogenetic Tree
Provide a phylogenetic tree of the following plants ( Make sure to arrange it properly and include labels) :Thunbergia erecta, Tabernaemontana divaricate, Hibiscus rosa-sinensis, Plumbago... more
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Science Chemistry

12/12/23

Moles, Molar Mass, and Molarity│Please Help!
What is the molarity of a solution that contains 50.0g of NaOH (molar mass = 40 grams/mole) in 2.0L of solution? 25M 2.5M 1.3M 0.63M
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Science Chemistry

12/12/23

Moles, Molar Mass, and Molarity│Please Help!
What is the molarity of a 0.500L solution that contains 2.0 moles of NaCl? 4.0M 250M 1.0M 2.0M
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Science Biology

12/12/23

TMRE Staining Question
If TMRE could be used to measure the potential across the thylakoid membrane similar to how it is used to measure the proton gradient in mitochondria, how would the intensity of TMRE staining of... more
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12/12/23

How to make transgenic mice in neurons?

I am confused and curious about the process of making transgenic mice. Can anyone explain and describe in-depth each step of the process one would use to make a transgenic mouse that expresses GFP... more
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