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science
A string with mass per unit length 0.0065 kg/m is used to suspend a 30 kg mass over a pulley. A transverse wave with wavelength 40 cm and amplitude 2.5 mm moves along the string. Determine the maximum speed of a particle on the string.

Science - Please Check
Consider a wetland ecosystem. In this ecosystem are two species: a small fish species and a wading bird species that feeds on the small fish as its main source of food. Oxygen levels are a limiting factor. Suppose that the local temperature changes in favor of greater oxygen ...

Mpindweni s.s.s science
A rocket of mass 5000kg is launched vertically upwards into the sky at an acceleration of 2om/s. The magnitude of the force due to gravity on the rocket is 49000 N calculate the magnitude and diretion of the force of the rocket's engine.

Science
3. Which of the following small bodies are the hardest to tell apart because they are made of similar materials? dwarf planets and comets asteroids and comets comets and meteoroids asteroids and meteoroids** A scientist examines a sample of an object from the solar system. ...

Science
1. How do scientists classify small objects in the solar system? by size by shape by size, shape, and temperature by size, shape, and composition** 2.Which of the following categories of small bodies in the solar system does Ceres belong to? dwarf planets** comets meteoroids ...

science
Ki reacts with kio3 to give i2 then find mass ofkio3required to completely react with 83gram of ki???

Science
I want to determine how fast can the engine be lifted up!

Science
1.) How does natural gas have a impact on our economy by? 2). How does coal have a impact on our economy by? 3). How dies nuclear electric power have a impact on our economy by?

Life science,,maths lit,economic,business study
Which career field i have to follow?

Maths lit, life science,business study,economic
Wich career i have to choose

science
How did student , most probably measure the volume of 10 glass marbles?

pysical science
An automobile with a mass of 1258 kg accelerates at a rate of 5 m/s² in the forward direction. What is the net force acting on the automobile?

science
what is the enthalphy change for the formation of 1.00 gram of waater vapour from hydrogen and oxygen

Science
A banana turning brown when exposed to air is an example of. And the options for me are. A heterogeneous mixture, vaporization, a chemical change, an amorphous solid.

science
A mass of o.8 kg water at 25c is mixed with m kg of boiling water.The resultant temperature is 40c.Then find m is

Maths lit, life science, economics, geography
hey, I want to do medicine and civil engineering is this subjects are right? If not please tell me which career i can go to with this subjects after my matric? Thanks

Science
What is vectors?

science
Can somebody help me understand batteries? I'll explain what I know, then, you can tell me if I'm right or wrong. I know that a battery consists of three main parts: the anode, the cathode, and an electrolyte. The anode is electropositive and the cathode is electronegative. ...

Science
Is it fair that one athlete could beat another because of the kind of clothes he or she is wearing? Why?why not?

Science
Arrange the steps required to focus a compound light microscope on low power in the correct order. Then write the numbers for the steps in the blanks. 1. Viewing from the side, raise the stage so that the slide almost touches the lens. 2. Move the low power objective lens ...

science
What is the pathaway and processes of ingestion involved when a person has eaten a buttered polony sandwish?

science
When I push on my refrigerator, there is a force acting on it that wasn't there before. That means it should be experiencing an unbalanced force and begin to move. Why doesn't it?

science
When I push on my refrigerator, there is a force acting on it that wasn't there before. That means it should be experiencing an unbalanced force and begin to move. Why doesn't it?

Science PLEASE CHECK ALL
1. Under which of the following conditions would a fossil most likely form? A. A living thing dies and sediment is very slowly deposited on top of its body. B. A living thing dies and sediment quickly covers its body. *** C. A living thing dies and its skeleton is left exposed...

science
Three year ago, Tom brought $750 worth if stock in a software company. Since then the value of his purchase has been increasing at an average rate of 123/5% per year. How much is the stock worth now? 0.126 x 750 ?

Science
Arrange the steps required to focus a compound light microscope on low power in the correct order. Then write the numbers for the steps in the blanks. 1. Viewing from the side, raise the stage so that the slide almost touches the lens. 2. Move the low power objective lens into...

Science
What effect does colored filter has on red,yellow and pink flowers?

Science
So I did a science experiment and I have to wrap a coil wire around a nail and tap the other end to a battery. Then see how many paper clips will stick to the nail, and I had to wrap more coil wire around the nail over time and stuff and record the data. Now I must choose the ...

Science
Together, satellites and ground receivers enable people using ______ to pinpoint their geographic location.

Science
What effects does Coloured Filters have on Red,Yellow and pink flowers?

Science
A particle moves along the parabola y = x^2 such that the x-component of velocity is always 2m/s. The acceleration of the particle is

Science
What is vector?

science
Find the initied valocity it which stop in 25 second the retidation produce in atrain is 1.2metersqure

Science
I have the 1st part of final tomorrow, how can I study it'll be a multiple choice test. Need help asap!

science
Calculate the no of neutrons present in 12x10^25 atoms of oxygen (8O^17)?

Science CHECK ALL
1. Under which of the following conditions would a fossil most likely form? A. A living thing dies and sediment is very slowly deposited on top of its body. B. A living thing dies and sediment quickly covers its body. *** C. A living thing dies and its skeleton is left exposed...

Science
A squirrel drops an acorn from a tree.How does potential energy of the acorn compare to its kinetic energy just before the acorn hits the ground

Science
What do astronauts take to space/what materials do they need and use? Plz help ASAP i cant find enough information and i need 40 bulletpoints by tomorrow!

Check my answers? Science
The order of events and ages of rocks by examining positions is *relative dating*. Gaps in rock layers are called *unconformities*. What uses properties of atoms to find ages of rocks? *Absolute Dating*. A life form in Precambrian Time was *Cyanobacteria*. What signaled the ...

math,science
A car traveling at 22 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?

physical science
A car traveling at 22 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?

science
A wire of length 1m has resistance of 10 ohm.if its length become 2m by stretching it then what is new value of resistance?

science
How are continental glaciers different from valley glaciers

Science
Based on the density of the wood V=15.625 m=10.00 D=.64g/cm3, would the wood float or sink if it is placed in a bowl of water? Explain your answer. Remember that the density of liquid water is 1.00 g/cm3.

science
how many electrons are trasfered if a liquid has a on 7,5×10-19C

science
two forces each of magnitude 10newton act in opposite direction at the end of the table if the length of the table is 50centimeter calculate.The resultant force and moment acting on the table.

science
the density of o2 at NTP is 1.429g/l.calculate standard molar volume of the gas?

science
Imagine that you are standing in the shallow end of a swimming pool, you look ahead at the bottom of the pool and see a coin, Describe the difference between where the coin appears to be and where it actually is. a clear plastic cube, with exactly the same index of refraction ...

Science one question dont understand plz help ASAP
What will my instruments need to do? (You don’t have to have special names. If you know what kind of data you want to collect, you’ll know what the instruments need to do. Don’t forget that you may need to store samples or other information and find a way to get it (we ...

science
calculate number of oxygen atom in 2 mol sulphuric acid.

science
The measured density oe He at NTP is 0.1784g/l.what is the weight of one mole?

science
The density of o2 at NTP is 1.429g/l.calcute standard molar volume of gas?

science
How does graphite burn in air to give carbondioxide

maths,science,geography and life science
What is restorative justice intention in process of human rights?

Computer science
How is creating a virtual ecosystem similar from the real world?

Science
A cyclist of total mass 85 kg maintains a constant speed up an inclined plane. the plane is inclined at 20 degrees to the horizontal. with frictional force of 120 N. the cyclist covers a distance of 50 m along the inclined plane in 20 s. 1. Calculate the work done by the ...

Science
I'm writina a speech about a mythical character/legendary whom you admire

Computer science (please help)
How is a creating a virtual ecosystem different from the real world?

PHYSICAL SCIENCE
A BALL IS DROPPED (V=0) FROM A TOWER 7 M HIGH. HOW FAR WILL THE BALL HAVE FALLEN AFTER AA TIME T1=1 S, T2=2S AND T3 = 3S.

Science
How far away from the pinhole should you move the screen to obtain a 5cm high image of a girl who is 125cm tall and stands 250cm away from the camera?

Science
How is creating a virtual ecosystem similar and different from the real world?

science
how do you feel when you are pregnent

science
A car travels West for 20min at 80km/hr and in direction 45NW at 30km/hr for 6min. Calculate the Total distance covered/ displacement of the car/ average speed/ average velocity.

Science
The sky is mostly blue, with some high, thin, feathery clouds. Which type of weather is most likely to occur? A. Light drizzle,**** B. Heavy precipitation, C. fair weather D. thunderstorm I say A. because the sky is mostly blue.

science
Explain briefly how pure dry crystals of calcium chloride could be obtained from a solution of calcium chloride.

science
A program that will calculate average marks for five students using multi dimensional array in vb

Science
A student goes to college,driving his car at 20 km per hour. He returns though same route ,driving at 40 km per hour . Find average speed during entire journey

Science
How test tube babies are born?

Biology/science
How is creating a virtual ecosystem similar and different from the real world?

Science
What are the systems that move the body?

science
why do we put salt on sidewalks when it snows?

Science
For your discussion assessment, you will present your proposal of a device that minimizes heat transfer.

science
This isn't a question, but I noticed that over half the questions don't even get answer...

Science
I have a project for science and we have to design an experiment to support the hypothesis that light travels in straight lines except at the point it enters a new medium. Does anyone have any examples I could use for this project?

science
I believe the angle of refraction will be ___________ when it goes from a ________ to a _______________ because ____________________________________. Please help

science
The gas-phase reaction, A2 + B2 --> 2AB, proceeds by bimolecular collisions between A2 and B2 molecules. If the concentrations of both A2 and B2 are doubled, the reaction rate will change by a factor of.....? Will you please explain instead of just giving me an answer. thanks

maths science
a mixture of 0.5 mol H2(g) and 0.5 mol 02(g) is allowed to react in a container of volume 200 cm3 .represent in the table

science
A stone projected at an angle of 60 degree and intial velocity of 20 meter second determing the time of flight

Science
How do I prepare 15% mercuric sulphate in 15% sulphuric acid?

Science
Early this spring researchers have recently discovered that there is one small remnant population of endangered bluegrass left in a small prairie plot outside of Kansas City. If there are approximately 850 individuals in the cohort, how many individuals can the researchers ...

science
A sled is tied to a tree on a frictionless snow covered hill,as shown.If the sled weighs 77N ,1)Find the magnitude of the tension force T exerted by the rope on the sled .2)Find the magnitude of the normal force applied by the hill on the sled.MY WORK IS AS FOLLOWS T-Wx=0. T-...

Science
Consider the following food chain: hawk - rabbit - clover. Each species will contain a different amount of calories in its body (clover: 10 calories, rabbit: 500 and hawk: 1200). Each species has a different daily caloric requirement (clover: sunlight, rabbit: 100 calories, ...

Science
Consider the following food chain: hawk - rabbit - clover. Each species will contain a different amount of calories in its body (clover: 10 calories, rabbit: 500 and hawk: 1200). Each species has a different daily caloric requirement (clover: sunlight, rabbit: 100 calories, ...

Science
Consider the following food chain: hawk - rabbit - clover. Each species will contain a different amount of calories in its body (clover: 10 calories, rabbit: 500 and hawk: 1200). Each species has a different daily caloric requirement (clover: sunlight, rabbit: 100 calories, ...

science
the African plate is moving toward the Eurasian plate at a rate of a few centimeters per year. how will this area change in 100 million years? in your answer, consider how continents will change and how the Mediterranean sea will change.

science
a geologist working in a national park finds a mineral. He is caring a kit that contains a Penney, a hand lens, a geologist hammer, and a jackknife. describe how the geologist can use these items determine some of the minerals chartist

science
tom is marking the locations of active volcanos on a world map. explain how the locations of the volcanoes are related to earths plates

Science (PhYsics)
A tire 0.5m in radius rotates at a constant rate of 200 rev/min. find the speed and acceleration of a stone lodged in the tread of the tire (on its outer edge)

Physical science
Is magnitude of displacement is greater than the distance travelled by an object?

Science
In Kjeldhal's method, Conc. H2SO4,NaOH & Boric acid is used to measure the % of nitrogen in a sample. If , in a sample HgCl2 is added , will it interfere the reaction? Accurate conc. of nitrogen will be determined or not?

science
A standard addition method is used to determine the concentration of ethanol in an unknown sample. Six 10 mL aliquots of the unknown are drawn from the processing vat. An aqueous solution of ethanol is standardized to have 1.57 g/L. This standard is pipetted to five of the ...

Science one question dont understand plz help ASAP
i know that from earth to the moon is 238,855 miles but i don't know how much that is in months

science
If a radioactive isotope has a half life of 10 years and you start with 100 grams what is the fraction left, percentage left, and amount of original in grams I would like for you to explain how to do it not tell me the answer that's the question

health science chemistry
How many ml of water should be added to 20.0 ml of a stock of 12.0 M HCl solution to make 1.50 M HCl ?assume that the volumes are additive.

math literacy, life science, history,sotho
What careers can I study for, where and how much will it cost????

9th grade Physical Science
Two dogs are fighting over a rope. The first dog is pulling with 10N to the right. The second dog is pulling with 15N to the left. Which way will the rope move?

Science
How does the force the rocket is launched with affect the distance it travels?

Science
Hello, I was just wondering what it means when something says "a white flower is crossed with a red flower" Could anyone please tell me?

science
Lesson 9: Energy and the Environment Unit Test Science 7 B Unit 3: Energy and the Environment does anyone have answers to this text C.A

Early childhood
What is a natural way for primary kids to process science skills

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