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Science Math Algebra 1 Algebra 2

03/08/22

The difference between the prices of a coach ticket and a first class ticket is $135. If the cost of a first class ticket is 175% of the cost of a coach ticket, what is the cost of a coach ticket?

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Science Biology

03/08/22

What would the outcomes be of AaBbCc x aabbcc?

I am not sure how to do this but need to know how to for my upcoming test in class.

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Science Chemistry Biochemistry Organic Chemistry

03/08/22

An excess lead nitrate solution was added to a 6.5 g sample mixture containing strontium nitrate and potassium bromide to precipitate out 0.8993 g of lead (II) bromide.

Solve for the percent by mass of the individual components of the mixture.

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Science Biology General Biology

03/08/22

Why is DNA barcoding important in classifying organisms?

1.Why is DNA barcoding important in classifying organisms?a.It helps identify the morphological structures of organismsb.It makes the identification of an organism faster and easierc.It provides a... more

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Science Biology Taxonomy General Biology

03/08/22

Why do different species like Monstera deliciosa and Monstera dubia belong to the same genus?

1.Why do different species like Monstera deliciosa and Monstera dubia belong to the same genus?a.It is because they have the same morphological structureb.It is how the scientists grouped them as a... more

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Science Math Algebra 1 Algebra 2

03/07/22

One day, 10% of the students enrolled in the school were absent. There were 1,620 students present on that day. How many students were absent?

(Hint: Figure what percent of the students were present.)

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Science Biology

03/07/22

My question is in the description because it didn’t fit here. (?)

The color for squirrel (Sciurus carolinensis) fur "F" is determined by two alleles. When two squirrels withgray fur are crossed the following phenotypic ratios are present in the offspring:a. 25%... more

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Science Physics Biochemistry

03/07/22

Carter and his girlfriend both swim at 4.0 m/s. They jump into a river 1.0 Km across, with a current of 3.0 m/s [E]

a) Carter faces (heads) due north at all times. What is his velocity relative to the ground?b) Carter's girlfriend swims straight across relative to the shore ( she does this by heading upstream a... more

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Science Physics Biochemistry

03/07/22

A young pilot flies 300.0 km [E] adn then back home 300.0 km [w] at an air speed of 300.0 km/h. A 30.0 km/h wind is blowing to the east.

a) what is the pilot's velocity relative to the ground for each leg of the trip?b) What is the time for each leg of the trip, in minutes?c) how long, in minutes, would the trip take if there were... more

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Science Economics Political Science

03/06/22

When is civil disobedience a viable tactic to effect change?

a.When other channels for change are blocked or don't existb.When there is a need to set a moral example to motivate action by othersc.When an institution or government is undermining the... more

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Science Biology Chemistry Biochemistry

03/02/22

need help with photosynthesis experiments

You have CAM, C3 and C4 plants. You should now investigate photosynthesis using these different plants. The light mentioned is photosynthetically active radition(PAR light), nutrients are nitrogen,... more

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Science Physics

03/02/22

4 1 8 4 J of energy is needed to heat 1 kg of water by 1 ∘ C ,but only 140 J is needed to heat 1 kg of mercury by 1 ∘ C .Which material has the higher specific heat capacity?

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Science Physics

03/02/22

4 1 8 4 J of energy is needed to heat 1 kg of water by 1 ∘ C ,but only 140 J is needed to heat 1 kg of mercury by 1 ∘ C .Which material has the higher specific heat capacity?

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Answers •1

Science Chemistry Biochemistry Organic Chemistry

03/01/22

CONCENTRATION OF SOLUTIONS CHEMISTRY (MOLARITY)

What is the molarity of a solution that contains 25 g of KOH in 250 mL of solution? What is the mole fraction of sulfuric acid (H2SO4) in 8% aqueous H2SO4 solution?

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Science Math Prealgebra Algebra

02/28/22

There were a total of 14 bicycles and tricycles in the park. There were 36 wheels in all. How many bicycles and how many tricycles were there?

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Science Math Prealgebra Algebra

02/28/22

Andrew scored 7 more goals than sam in a soccer season. If Sam had scored 3 times as many goals, he would havw scored 1 goal more than Andrew. How many goals did each boy score?

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Science Chemistry Stoichiometry

02/27/22

Using 2H2+ Oz--> 2H20. Determine the limiting reactant when 19g of hydrogen reacts with 19g of oxygen

Well I don’t understand what this means or what the answer is.. I just need to figure everything out before tomorrow

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Science Physics

02/25/22

physics question !!!

a convex lens has a focal length of 10 cm. an object 2 cm tall is placed in front of the lens.(a) at what distance will the image appear inverted and 2 cm tall?(b) at what object distance will the... more

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Science Statistics Psychology

02/24/22

Psychology experiment

Explain why “a correlation does not prove causation.” Design an experiment that will examine the question, “Who will learn more about psychology, those students attend face- to-face lecture or... more

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Science Physics

02/22/22

physics question

a convex lens has a focal length of 10 cm. an object 2 cm tall is placed in front of the lens.(a) at what distance will the image appear inverted and 2 cm tall?(b) at what object distance will the... more

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Answers •1

Science Chemistry

02/21/22

Chemistry Equilibrium

A gaseous mixture of NO2 and N2O4 is in equilibrium. If the concentration of N2O4 is 7.1 x 10^-4M what is the concentration of NO2?2 NO2 = N2O4, Kc= 170Thank you in advance! If you could explain... more

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Science Chemistry High School Highschool

02/20/22

Give a concrete scenario/occurrence that is analogous to the transcription and translation process

Hello! I am currently studying protein synthesis, but I am struggling to think of any scenario that could be comparable in certain aspects to the transcription and translation process of DNA. Thank... more

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Science Physics Physical Science Mechanical Engineering

02/18/22

Does these violate Newton's third law?

A 50 KG brick is put on a glass table glass. Action force and reaction force are not the same and the glass breaks because a glass's opposing force will never equal the heavier brick. So in... more

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Science Chemistry Biochemistry Organic Chemistry

02/18/22

What is the weight of a specimen (MW=56.1) in grams if the molarity of a 500 mL solution is 1.5 M?

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Science Chemistry Biochemistry Organic Chemistry

02/18/22

The solution is made up of a A, B, and C in 4:3:1 proportions. How much of each is present if the whole solution has a volume of 350 mL?

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The difference between the prices of a coach ticket and a first class ticket is $135. If the cost of a first class ticket is 175% of the cost of a coach ticket, what is the cost of a coach ticket?

What would the outcomes be of AaBbCc x aabbcc?

An excess lead nitrate solution was added to a 6.5 g sample mixture containing strontium nitrate and potassium bromide to precipitate out 0.8993 g of lead (II) bromide.

Why is DNA barcoding important in classifying organisms?

Why do different species like Monstera deliciosa and Monstera dubia belong to the same genus?

One day, 10% of the students enrolled in the school were absent. There were 1,620 students present on that day. How many students were absent?

My question is in the description because it didn’t fit here. (?)

Carter and his girlfriend both swim at 4.0 m/s. They jump into a river 1.0 Km across, with a current of 3.0 m/s [E]

A young pilot flies 300.0 km [E] adn then back home 300.0 km [w] at an air speed of 300.0 km/h. A 30.0 km/h wind is blowing to the east.

When is civil disobedience a viable tactic to effect change?

need help with photosynthesis experiments

4 1 8 4 J of energy is needed to heat 1 kg of water by 1 ∘ C ,but only 140 J is needed to heat 1 kg of mercury by 1 ∘ C .Which material has the higher specific heat capacity?

4 1 8 4 J of energy is needed to heat 1 kg of water by 1 ∘ C ,but only 140 J is needed to heat 1 kg of mercury by 1 ∘ C .Which material has the higher specific heat capacity?

CONCENTRATION OF SOLUTIONS CHEMISTRY (MOLARITY)

There were a total of 14 bicycles and tricycles in the park. There were 36 wheels in all. How many bicycles and how many tricycles were there?

Andrew scored 7 more goals than sam in a soccer season. If Sam had scored 3 times as many goals, he would havw scored 1 goal more than Andrew. How many goals did each boy score?

Using 2H2+ Oz--> 2H20. Determine the limiting reactant when 19g of hydrogen reacts with 19g of oxygen

physics question !!!

Psychology experiment

physics question

Chemistry Equilibrium

Give a concrete scenario/occurrence that is analogous to the transcription and translation process

Does these violate Newton's third law?

What is the weight of a specimen (MW=56.1) in grams if the molarity of a 500 mL solution is 1.5 M?

The solution is made up of a A, B, and C in 4:3:1 proportions. How much of each is present if the whole solution has a volume of 350 mL?

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