4,347 Answered Questions for the topic Science

06/17/20

What is an easy and not too expensive science project during the summer for students?
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06/17/20

Why are small pet turtles not really a very good house pet?
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06/16/20

vector math problem
Write the vector equation of a line through the point of intersection of 𝑙1 and 𝑙2 and perpendicular to both 𝑙1 and 𝑙2. 𝑙1:[𝑥,𝑦,𝑧] = [2,1,1] + 𝑠[4,0,−1] 𝑙2:[𝑥,𝑦,𝑧] = [3,−1,1] + 𝑡[9,−2,−2]
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06/16/20

What is the difference between ideology and inquiry?

I need examples of the difference between the two.
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06/15/20

What is the connection between the scientific method and critical thinking?

I need examples of the connection between the two.
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Science Biology Nutrition

06/15/20

Macronutrients meal
Ryan ate a stir-fried meal that consisted of mushrooms, snow peas, and some salt and oil. What macronutrients are primarily found in this meal? starch cellulose chitin lipids proteins
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Science Chem

06/12/20

What steps are needed to make 250.0 mL of a .20 mol/L solution from solid NaOH? And the molar mass of NaOH is 40g/Mol.
i need "a complete response that includes the required mass of the sample and a set of detailed instructions"
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06/12/20

What is the best treatment for a traumatic injury to a fish's gills?
I have been looking around but all of the possible answers I've found are either very technical in their language or they're more specific about diseases or illnesses that can damage a fish's... more
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06/10/20

Work out the concentration of the sulfuric acid in grams per dm3 if it took 25cm3 of it to completely neutralise the sodium hydroxide. The relative molecular mass of sulfuric acid is 98
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06/10/20

What type of substance is phenolphthalein
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Science Chemistry Gcse

06/09/20

Magnesium burns in air to give magnesium oxide as shown below. If 8g of magnesium oxide product is produced, calculate how much magnesium metal must have been used.

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Science Chemistry Gcse

06/09/20

The equation below shows the formation of ammonia. If 56g of nitrogen gas is used in the reaction, how much ammonia will be formed?
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Science Calculus

06/09/20

What tells you that the relation is best fit by a linear model? Use principles about what kinds of functions have consistency in which types of rates of change?
Suppose a set of data about the spread (in hundreds of acres) of a food-borne bacteria (after t weeks) in lettuce has the following percentage rates of change: 0.9%, 1.3%, 1.1%, 1.0%, 1.3%, 1.0%;... more
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Science Physics

06/08/20

Neglecting the effects of air resistance, how far will an object fall from rest in 9 seconds? Please show your work in order to earn credit for this question.
Neglecting the effects of air resistance, how far will an object fall from rest in 9 seconds? Please show your work in order to earn credit for this question.Free Fall Kinematic Equations which may... more
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Science Physics

06/08/20

What is the acceleration of the block?
A 9 kg block experiences two external forces acting on it simultaneously. Force A has a magnitude of 20 N and points in the positive direction. Force B has a magnitude of 4 N and points in the... more
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Science Chemistry

06/08/20

Chemistry question
When a gas enters an opened container and reacts with the substances in the container, is it part of the initial measurement of the reactants on the scale? Does the total mass change during a... more
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Science Physics

06/08/20

If a 23 N horizontal force is acting on a box and the box remains at rest, then the force of static friction must be ___________.

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Science Physics

06/08/20

Driving down the highway you see a truck that has a mass of 3250 kg. If you are told the force of friction is 1500 N, what is the coefficient of friction? What is the acceleration of the truck?
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Science Physics

06/08/20

4 N horizontal force is needed to keep an object that weighs 128 N moving at a constant speed.

A 4 N horizontal force is needed to keep an object that weighs 128 N moving at a constant speed. What is the coefficient of kinetic friction between the object and the surface? Do not include the... more
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Science

06/08/20

If A light bulb has a power rating of 100 watts How much does it transfer in one minute

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Science Physics

06/08/20

Driving down the highway you see a truck that has a mass of 3250 kg.
Driving down the highway you see a truck that has a mass of 3250 kg. If you are told the force of friction is 1500 N, what is the coefficient of friction? What is the acceleration of the truck?
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Expert Answers •1
Science Chemistry

06/08/20

What are all the ways that a substance can change phase?
What are all the ways that a substance can change phase? *Any substance in general, not a specific one. Thank you! :)
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06/08/20

how to find fluid displacement and buoyancy?
The liquid Density is 2.4kg/L The object weight is 20.Kg and its density is 4.6kg/LHow do i solve the buoyant force and its new weight while in the liquid?
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06/08/20

Anatomy & Physiology (MRNA & DNA)

Which nitrogenous bases would be found on the MRNA transcribed from a DNA strand with the following nucleotide sequence: AAA/TTT/GGG/CCC and why?
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06/08/20

Anatomy and Physiology (DNA)
One DNA strand of Chromosome #12 has the following nucleotide sequence: TAC/CGC/CCT/TGC/GTA/CTC/ACT.What nitrogenous bases would be found on "the other DNA strand lying along side of it and why?"
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