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Recent Homework Questions About Science
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Science
a ball is thrown upward at a speed of 12 m/s. It will reach the top of its path in about: a) 0.6 sec b) 1.2 sec c) 1.8 sec d) 2.4 sec Please explain how you find the answer!!! I cannot figure it out
Science
What is concluded about one of Mendel's short pea plants? A.It had one dominant and one recessive gene B.It had a pair of recessive genes C.It had a pair of dominant genes D.It had no recessive genes B?
science please help me fast
the stomach uses two kinds of tissue to carry out diffusion. true or false
Science
What can you conclude about Gregor Mendel? A. The Catholic Church forced him to stop his experiments B. He was one of the first researchers to establish how heredity worked C. He concluded that heredity worked for people as well as plants D. He established all the principles ...
7th grade science
what is the gravitational potential energy of a 0.1 kg apple sitting on a 12.5 m flagpole?
Science
What is concluded about one of Mendel's short pea plants? A. It has one dominant and one recessive gene B. It has a pair of recessive genes C. It has a pair of dominant genes D. It has no recessive genes A?
Science
Which of the following is inherited? A. The shape of your blood cells B. Your intelligence C. Your personality D. Your weight A?
6th grade science
how do carrier proteins recognize substances to transport in active transport?
science
Danny sails a boat downstream. The wind pushes the boat along at 21 km/hr. The current runs downstream at 15 km/hr. What is the actual velocity of the boat
English
I just wanted to add a few more things. I urgently need to express them. 1) We keep emailing each other (two people involved) in English because we both agreed to use English as the lingua franca. 2) Therefore, we must vary the application module; otherwise, both our students ...
general science
a train goes forward at a speed of 1 m/s for 20 seconds. then it stops and goes backward at a speed of 0.5 m/s for 4 seconds. after both movements are completed, how far is the train located from its starting point.
English
I urgenlty need you to check these sentences, too. I need to be extremely convincing but also determined. 1) We also agreed to use English as lingua franca during the preliminary meeting we held at our school with our school principals. 2) On that occasion we established that ...
elements of design
1. Study the following sentence, then select the answer that best describes it. THE COW JUMPS OVER THE MOON! A. Italic serifed type B. Bold roman sans serif type C. Bold italic sans serif type(my answer) D. Bold roman serifed type 2. Which one of the following statements about...
phyhsical science
how much time is needed for a car to accelerate from 6.5 m/s to a speed of 22 m/s if the acceleration is 3.0 m/s/s?
Science
Hi , I am doing a written science assessment on burning magnesium metal - one of the questions we had to answer was:explain the reaction using the big idea of energy . Would you have any clue what that means ? Thanks x
English
I urgently need you to check these sentences. 1) Our German partner wrote that students can communicate in one of the European languages of their partners. I'm really disappointed by his words and I need to reply to this. 2) Among the linguistic objectives you included: - ...
English
Thank you very, very much for helping me! I still have to mention a few things to connect the description of the school to the need of promoting the study of English and IT. I hope you can help me express them. 1) I also wanted to say that students from the applied sciences ...
SCIENCE!
10 points to best answer?! Thanks in advance! (: Which particles have almost the same mass? proton and electron proton and neutron electron and neutron all three particles The nucleus is held together by ____. magnetic attraction gravity atomic glue the strong nuclear force
science
How is temperature related to the average kinetic energy of molecules that make up a substance?
science
What do scientists mean when they say that action equals reaction?
science
What is the effect of increasing the temperature of a body?
math
Of the first graders who were asked, one sixth like math best, two thirds like reading best, and 12 like science best. How many first graders were asked their favorite subject? Please provide a "Draw a Picture" strategy to solve the problem.
Science
What environmental niche is most suitable for an animal that eats fruit? A.artic tundra B.temperate swamp C.temperate plains D.tropical forest D? Which of these is NOT an adaptation for the Fennec Fox? A.beige coat to camoflauge B.small ears to prevent heat loss C.hunting ...
English
Here is the second part of the school description I need to translate. Some words are unclear and the sentences are too wordy. I need your help to improve them. 1) third branch includes the study of two foreign languages: English and French and addresses to all those who wish ...
science
In 91% (by volume) isopropyl alcohol (a large [compared to water], flammable molecule) solution, there are only two substances: the alcohol, and water. So when I poured 50 mL of 91% isopropyl alcohol into a graduated cylinder, how many milliliters were alcohol? How many were ...
Science 7R - HW Check (PLZ read!)
Compare Lamarck's explantion of evolution with Darwin's theory. My Answer - After scientist collected large amounts of data on the inheritance of characteristics, Lamarck's explanation was rejected. Darwin's developed the theory of evolution still accepted ...
Science
What environmental niche is most suitable for an animal that eats fruit? A.artic tundra B.temperate swamp C.temperate plains D.tropical forest D? Which of these is NOT an adaptation for the Fennec Fox? A.beige coat to camoflauge B.small ears to prevent heat loss C.hunting ...
6th grade science
at the end of cytokinesis, how many chromatids will be found in each daughter cell? explain.
Science
Which of these structural adaptations would most help a nocturnal animal living in the forest? A.smaller eyes B.longer hind legs C.darker fur D.wings C? Which of these changes would most help a plant living in a desert? A.more leaves B.more roots C.smaller stem D.smaller ...
English
Writeacher, thank you very much for all your explanations!! I think the part of the integration of the project into the students' curriculum should be improved. This is what I translated. I think certain points should be omitted. I also wanted to add a new point. 1) ...
materials science
A bar of pure nickel is coupled with a bar of pure iron (interfaced). The diffusion couple is then heated to a temperature of 1000°C. (a) How long will it take for the concentration of nickel to reach 0.1 wt%, 1.0 μm below the interface? (b) How long will it take for ...
science/math
A juice processing operation uses steam to heat the fruit juice up to a temperature of 96̊C prior to packaging it in drink boxes. They need to heat 3,250 kg of apple juice (10.5% solids) from an initial storage temperature of 39̊F to its heat treatment temperature. ...
Science
Helium gas is added to a ballon already partially filled with helium gas the balloon inflated because the
6th grade science
during which phase is DNA duplicated?
6th grade science
what are the four phases of mitosis??? -------,-------,-------,-------
Science
Which of the following statements describes the most serious , long term , environmental damage produced by oil spills in the ocean ?
science
Can you help me please? List at least three ways in which insects can help humans? 1. Bees can help by the honey they make. it can be used by humans in many ways. 2. They help the ecology by being producers, consumers and decomposers in the food chain. 3. Insects can be an ...
computer science
Use the Library and other resources to write a "work-from-home" policy manual for an insurance company, educational institution, or another organization concerned about protecting an individual's privacy. Your manual should include policies to cover remote access...
science/physics
A 230kg ball moving at velocity of 25m/s collides with a 420 kg ball that is not moving. What is the final velocity after contact
English
Thank you very much! As to the linguistic objectives, I included a few more things but I don't know if the logical sequence is correct (I think some points could be omitted). As you are also an English teacher, I really hope you can help me organize the linguistic ...
science
Can you help me with these question(s) please??? What substance does a cell use to power active transport? Describe the movement of material during diffusion. Describe the movement of material during active transport. I would appreciate any help whatsoever. Thank you. kathy
science
Which wave property can best explain the apparent bending of a pencil when its dipped in to a glass of water?
science
Which wave property can best explain the apparent bending of a pencil when its dipped in to a glass of water?
science
Which wave property can best explain the apparent bending of a pencil when its dipped in to a glass of water?
science (physics)
five examples of potential energy with diagram
science
what is ways of changing the direction of moving billard ball.
science
An object is dropped off of a 27 meter tall building. How long is it in the air before it hits the ground? To measure the height of a tree, a person throws a ball vertically upward, and takes 13 seconds to reach its maximum height which is exactly the height of the tree. How ...
science
A race car travels northward on a straight, level track at a constant speed, traveling 0.777 km in 16.6 sec. The return trip over the same track is made in 21.7 sec. What is the average velocity of the car for the FIRST leg of the trip? What is the average velocity of the car ...
science
A space probe of the surface of Mars sends a radio signal back to the Earth, a distance of 3 x 1010 km. Radio waves travel at the speed of light (3.00 x 108 m/s). How far away is the space probe? How many seconds does it take for the signal to reach the Earth? How many hours ...
science
why explore volcanoes?
science
A jogger jogs around a circular track with a diameter of 330 meters in 31 minutes. What was the runner's average speed? What was the runner's average velocity
FACS - Pen Pal Letter Project HELP!!!
Name ________ Period 5 FACS - (teacher's name) (Space down 5 lines) *Tab 5 across for HEADING/ADDRESS & DATE (what does this means?) (Space down 2 times after date) GREETING (Space down 2 times after greetings THIS IS THE INFO. FOR FRIENDLY LETTER/PEN PAL LETTER - Margins...
science- cell structure
An inner and an outer membrane are characteristic of which organelle? my answer: Mitochondria and chloroplasts What is the nucleus? my answer- nucleus is a cell structure that contains hereditary information What is the nucleiod? my answer: the nucleiod is like the nucleus. ...
science
an areroplane flies to the destination 600km west of its starting point. A wind is blowing from the North-west at 75 m/s. The pilot wants to complete the flight in 55 minutes. Calculate the direction to be taken by the pilot.
science
While rearranging a dorm room, a student does 288 J of work in moving a desk 2.2 m. What was the magnitude of the applied horizontal force?
science
What is the kinetic energy of a 23 kg dog that is running at a speed of 7.4 m/s (about 17 mi/h)?
science
How much work is required to lift a 3.3-kg concrete block to a height of 1.2 m?
science
A 5.8 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.57 m above the counter?
Science
Why do seas provide habitats with minimum temperature variation? How does turbulence of water influences the availability of gases? I read that jellyfish have form in water but collapses into a mass when placed on land, why is that? Its not really Homework i just read it from ...
English
Writeacher, I'll follow your advice. Can you check if everything is OK? 1) As I told you last Saturday, I asked my school's science teachers several times to prepare part D but they didn’t. 2) During the preliminary meeting they haven’t helped us at all ...
science
what is formed when an underwater mountain reaches the oceans surface
Science/English
I really need a science teacher to check point 1 and tell me if the rest is possible. Thank you very much! 1) Task organization and information distribution The various tasks will be divided among participating students according to the logical breakdown of looking at the ...
Earth Science
Can you help me find how many hours are received by these degrees of latitude during the winter (see details)? North Pole = 0 hrs of daylight Equator = 12 hrs of daylight South Pole = 24 hrs of daylight 66.5 degrees north = ? 23.5 degrees north = ? 23.5 degrees south = ? 66.5 ...
Science 7R - HW Qs. Check (PLZ read!)
What is the difference between aerobic and anaerobic organisms? My Answer: Aerobic requires oxygen, anaerobic doesn't. Is my answer to this question is correct. Please reply this post! Thank You!
Science
Bobpursely, thank you for helping me! Our project involving three schools is about biodiversity in water. In particular, participating students will have to carry out a chemical and microbiological analyses of water in each school's local area : river water for us and the ...
science
The pull of gravity keeps the Moon in orbit around Earth. The distance between the Earth and Moon is about 380,000 kilometers. A crew of astronauts leaves Earth on a Monday and lands on the Moon on a Thursday. They land on the side of the Moon facing away from the Earth. On ...
English 7 - Journal Entry Check
English Homework: Journal Entry Due Tomorrow Topic - Dicuss a time when you made a decison to do something (Determination), and perservered as a result. Please check my journal entry to see if it's good. Determination When I first came in the 7th grade at (school name), I ...
science
Objects in motion are the result of _____ forces.
science
Stationary objects are the result of ____ forces.
Science
Writeacher, can you ask a science teacher to help me with my application? (methods adopted when analyzing experiment data concerning biodiversity in water) I would be extremely grateful to you. Approach 1) Task organization and information distribution The various tasks will ...
English/Science
I really need your help to determine if the following techniques are possible when analyzing scientific data (biodiversity in water) with pupils. I think an English science teacher can help me determine the techniques. Approach 1) Task organization and information distribution...
Science
A 2400-pound car exerts its maximum force of 750 pounds. What will be its minimum time needed to slow it down from 50 m/s to 10 m/s? Determine how far will the car travel in that time.
computer science
You work for a company that requires you to compute the average temperature for 8 A.M. to 6 P.PM. each day. You are to computer program to compute the average temperature.
science
what is the massof fresh water(p=1.00g/cm^3) in a 72.8L tank?
science
what is co2 ..can anybody remind me because i forget.
science
what technologies or what do explorers need to survive a volcano underwater and space?
Science
A 95 kg tennis player hits a 0.5 kg tennis ball with a force of 150 N What force does the ball exert on the raquet?
Science
Which of the following is an example of an inherited trait? A. Migration in geese B. Hunting behavior of tigers C. A child riding a horse D. A dolphin jumping through a hoop A? An orangutan is trying to catch a fish with a long pointed tool. Which of the following describes ...
Science
Which of the following describes a learned behavior? A. A cat nursing its kittens B. A parrot singing words to a song C. A mocking bird building a nest D. A zebra's black and white stripes. B?
science
if the distance between crest were 1.5 meters apart, and 2 crest pass the pole each second, what would be the speed of the wave ?
English
Here is the second part of the project I urgently need to prepare on biodiversity. Please, I don't know what else to include. What impact do you expect partnership activities to have on persons and on the participating institutions? 1) The project will develop ...
Physical Science
The string of a certain yo-yo is 80 cm long and will break when the force on it is 10 N. What is the highest speed the 200 g yo-yo can have when it is being whirled in a circle? Ignore the gravitational pull of the earth on the yo-yo.
Physical Science
A man has a mass of 70 kg. A) What would his weight be on Jupiter which as an acceleration of gravity of 25m/s^2? B) What would the mass of a person have to be in order for him to weigh that amount on earth?
Physical Science
A force of 20 Newtons gives a brick an acceleration of 5 m/s^2. What is the mass of the brick?
Physical Science
A bicycle and its rider together have a mass of 80 kg. If the bicycle's speed is 6m/s, how much force is needed to bring it to a stop in 4 seconds
English
Could you please check the following sentences, please? 1) Our teachers haven't helped us at all to establish the objectives or the possible results of our project. 2) That's why I believe we should consider the possibility of including Finland in our partnership. 3) ...
science
A thermally insulated 50 ohm resistor carries a current of 1 A for 1 s. The initial temperature of the resistor is 10 degree Celsius, its mass is 5 g, its specific heat capacity is 850. What is the change in entropy of the resistor?
Pleaseeeee help! on science
Can you explain a watch and a to me on tornados
Science
Can you tell me one time a tornado actually took place in the world and which tornado was it?
Science
I do not need a link, just a straight up answer please. What are 3 saftey tips you can give me for 'Tornadoes'?
science
Imagine that you are the scientist who discovered cells. If you were to give a speech to a group of fellow scientists, what key points would you include that describe your accomplishments? What are some that would help?
Science
What are emotional changes boys and girls experience during puberty?
science
How much work is done by an applied force that moves two charges of +7.8 µC that are initially very far apart to a distance of 3.8 cm apart
science
Runner A is initially 5.0 km west of a flagpole and is running with a constant velocity of 4.5 km/h due east. Runner B is initially 7.0 km east of the flagpole and is running with a constant velocity of 6.5 km/h due west. How far are the runners from the flagpole when their ...
science
I have a test tomorrow and i need to be able to say what type of bacteria something is in their agar colonies. I am having a hard time diffirentiating between bacillus cereus and bacillus subtilis. does anyone have any good websites that would help? or know any tricks?
Physical Science
The string of a certain yo-yo is 80 cm long and will break when the force on it is 10 N. What is the highest speed the 200 g yo-yo can have when it is being whirled in a circle? Ignore the gravitational pull of the earth on the yo-yo.
Physical Science
A man has a mass of 70 kg. A) What would his weight be on Jupiter which as an acceleration of gravity of 25m/s^2? B) What would the mass of a person have to be in order for him to weigh that amount on earth?
science
if a globe has a diameter of 0.5 meters write the globes scale as a ratio. What distance on earth would 1 centimeter on a globe represent
Physical Science
A force of 20 Newtons gives a brick an acceleration of 5 m/s^2. What is the mass of the brick?
Physical Science
A bicycle and its rider together have a mass of 80 kg. If the bicycle's speed is 6m/s, how much force is needed to bring it to a stop in 4 seconds.
physics science
Please can you help as I am stuck, Describe ib detail, how you would carry out an investigation to measure the density of a block of aluminium? Thankyou
engineering science
If a person has a mass of 83 kg, what will that person weigh in newton
engineering science
A 250 cc motorbike must accelerate from rest to 126 km/h in 150 m in 10 seconds. Draw a velocity/time graph of the movement. (Hint: change km/h to m/s
physics science
Please can you help as I am stuck, Describe ib detail, how you would carry out an investigation to measure the density of a block of aluminium? Thankyou
English
I left out the following sentences. Thank you very much for helping me. 1) As for our Comenius project on biodiversity in water, I'm attaching a copy of the European module the coordinating school has to fill in by 21 February. 2) Do you think you could help the German ...
English
Could you please check the following sentences, please? Thank you. 1)I'm still waiting to receive an answer from the principal of the German school to see if they are willing to accept your school in our Comenius partership. 2) In any case, our science teachers are really ...
Science
Examples of seed dispersal Animals carry seeds away carried by the wind animal waste carried by water stuck to fur/clothes Any others?
Science
On the movie, Bill Nye the Science Guy, what was the seventh energy after thermal, elctrical, nuclear, sound, solar, and chemical?
materials science
Consider a copper lattice with an excessive average of one vacancy in every 100 unit cells. What will be its density? Compare this to the theoretical density of copper.
science
how does the thinning of the ozone layer protect your health?
science
How much total, KE and PE does a roller coaster have when it has a mass of 750 kg, and is 5m above the ground?
Science
Which distance is the greatest ? A. The distance across the Milky Way Galaxy. B. The distance to the nearest star Cluster. C. The distance across the solar system. D. The distance to the nearest Galaxy.
Science
Is a medical diagnosis considered a theory or a hypothesis?
7th Grade Science
Can anyone tell me where I can find information for this question. How are proteins synnthesized made?
science
what is hydrocarbon i think its water but im not sure pls help Lol
Science
A traffic light turns green, a car accelerate from rest and cover 10m in 4s . What is the acceleration of the car , assume uniform acceleration
Science
Table 1: Temperature and volume data Trial Temperature (Celsius) Volume (mL) Starting Volume Room Temperature = Hot Water Trial 1 107 5.6ml Hot Water Trial 2 108.3 5.4ml Cold Water Trial 1 lo 4.4ml Cold Water Trial 2 lo 4.4ml PLOT AREA (Insert a graph that you either drew here...
science
V(CH3OH)= 2 litres ρ(CH3OH) = 0,80 g/ml v(O2) - ? (How much O2 is it needed to burn with 2 litres of CH3OH?)
ohysical science
A weightlifter raises a 200-kg barbell through a height of 2 m in 2.2 s. The average power he develops during the lift is
Physical Science
Three balls (see below) are dropped simultaneously from the 40th floor of a tall building into the air below. A) In what order will they hit the ground, or will they arrive at the same time? B) Provide an explanation for your answer above. Ball A (softball size; wt= 50 g) Ball...
science
Circle the term that does not belong in each of the following groupings. 1. HC1 secretion Acetyicholine Histamine Secretin Gastrin 2. Gastric emptying Slowed by fats Enterogastric reflex Solid foods 3. Cephalic phase Reflex phase Intestinal phase Psychological stimuli 4. ...
Physical Science
If there were no air resistance, a quarter dropped from the top of New York's empire state building would reach the ground 9.6 seconds later, what would its speed be? How high is the building?
Physical Science
A person dives off the edge of a cliff 33m above the surface of the sea below. Assuming that air resistance is negligible, (a) How long does it dive last? (b) and with what speed does the person enter the water?
Algebra 2
In a quiz program, 3 questions on sprots, 3 questions on general knowledge, and 4 questions on science are printed separately on 10 cards and placed upside down. John is asked to select 2 cards at random. What is the probability of Joohn selecting 2 questions on science?
7th grade science
what are intermediate forms of species for gradualism and punctuated equilibria? Please help!! Thank you!!
physical science
Joe baked a cake for his mother's birthday. When he removed the cake from the oven, Joe noticed that the cake had not risen. Joe guessed that the baking powder he had used was too old. He designed the following experiment to test his idea. Joe prepared two cakes ¡V ...
physical science
is the study of the moon's phases a pure or applied science
Biology
write a paragraph describing the importance of dna to science, medicine, and all living organisms
7th grade science
What are mass extinctions?
Science 7R
the most complex organisms are (a.) animals b. bacteria c. fungi d. protists i choose a am i correct?
Science 7R HELP!
variety of plants and animals I have the match each pharse with the correct term and I don't know what phrase (word) for this term please help!
science
A ball moving eastward with a velocy of 15m/sec bounces off a wall with a velocity of 12m/sec in the opposite direction.If the mass of the ball 200g.Calculate the change in the ball's momentum
science
what does oxytetracycline contain that would destroy bacillus cereus
5 grade science
what was your hypothesis? explain the process that your followed to determine the results for your experiment.
science
what are the molecular or formula masses of each of the following compounds,al[oh]3,hno3,pcl3,cuco3,feso4
Science
Job Issues related to overdrawing surface water?
Science
wHAT DOES E=MC2 MEAN?
Science
Emotional and physical changes in boys and girls.
science
How can you predict if a block of plastic will float in water? I know it has something to do with density but not sure. Thanks..
English
I left out a sentence, too. Thank you very, very much 1) In particular, your school would analyze the water in your local area (the results of which will then be exchanged through an E-twinning platform set up by the German schoool) and you would also help the Italian science ...
English
I don't know exactly how to express these concepts. I urgently need to express them in English. Please, help me! 1) Tomorrow I will tell both our French and German partners that your school is going to cooperate with us on the project. 2) We have agreed on a common theme ...
Science
Can u help me find a picture of a sea sponge budding ?
Science 7R - Homework Check (Q3)
What's the function of a dichotomous key? My Answer: Dichotomous Key use by scientists are arranged in steps with two descriptive statements at each step. Is my answer to this question is correct??? BTW: I got this answer from my textbook in that section that my science ...
Science 7R - Homework HELP!
why can common names cause confusion? PLEASE HELP ME!!! I REALLY NEED HELP WITH THIS QUESTION!
physical science
by what means can earth scientists predict discharge of a stream afeter a rainstorm?
Science 7R - Homework Check
1. List 4 reasons biologists use scientific names instead of common names in their communications. Answer 1. Scientific names help scientists aviod errors in communication. 2. Organisms with similar evolutionary histories are classified together, 3. The scientific names give ...
Science/English/Math
I was selected to the Math Academy at my school. I have it every wednesday after school. They are going to prepare me for the NYS Math Exam!!! :) I got a 80 on my Science Quarterly Exam!!!! :) (i didn't know some of my friends and other people were saying good job laruen ...
English
I urgently need you to check the agenda again: Agenda of the Comenius project 1) 27 January 2012 Greeting of the principal of "... high school" (to the German and French schools) in the teachers' library. 9 pm -12pm Visit of the school (and its laboratories) ...
English
I left out these sentences. Could you please check them? Thank you. 1) We are delighted to welcome today representatives from the French and the German school with whom we will embark (work?) on our Comenius project. 2) We have searched with difficulty to find two schools that...
English
Thank you very much! I still haven't found anything on biodiversity in water. I need to find a website which explains the possible scientific objectives of this type of topic. Remember that the research will be carried out by 17-year-old Italian students specializing in ...
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