An automobile accelerates 1.24 m/s^2 over 6.00 s to reach freeway speed at the end of an entrance ramp. If the cars final speed is 86.0 km/h, what was its initial speed when it began accelerating? Express your answer in km/h I can do it but I just don't know how I'm ...
Tuesday, October 25, 2016 by John
The records of a computer retail store show that out of the 25 customers who purchased a desktop computer last month, all but 8 also purchased a service plan that extends the warranty for an extra year. Out of 100 the customers who purchased a notebook computer last month, all...
Tuesday, October 25, 2016 by Traci
Potassium-40 has a half life of 1.2 billion years and decays into the stable daughter isotope Argon-40. If you find a rock that contains 20 Potassium-40 atoms and 60 Argon-40 atoms, how old is the rock?
Tuesday, October 25, 2016 by lex
History Check Please!
Please check! Thanks! 1. How did the development of universities in medieval Europe strengthen the Church and unify society? a. Universities grew up around cathedrals, and courses of study helped educate clergy.*** b. Universities started cathedrals, which were important ...
Tuesday, October 25, 2016 by Olivia N J
How do the processes for identifying rocks and minerals compare? Describe at least one similarity and one difference between them. Can someone please help me? ASAP please!?...
Tuesday, October 25, 2016 by Just a confused person...
Science (Chemistry) (Yield)
Using your mass of Mg (0.101g), and assuming all of the Mg burns in oxygen and forms the theoretical predicted product, calculate the theoretical yield of magnesium oxide. I wrote out the equation and it turned out to be: 2Mg+O2->2MgO I have my mass of Mg but how do I get ...
Monday, October 24, 2016 by Ray
Your moms vacumm cleaner really sucks up dirt. The motor draws a current of 6 A at a potential of 120 V. Calculate the power and resistance of her vacuum cleaner
Monday, October 24, 2016 by Yasmine
You normally drive the south expressway between Calubang and Magallanes at an average velocity of 105km/hr (65mi/hr), and the trip takes 2 hours and 20 minutes. On a Monday morning, however, heavy traffic slows you down and you drive the same distance at an average velocity of...
Monday, October 24, 2016 by Johnny
How much heat is released when 75.0 g of steam at 100.0 c is cooled to ice at -15.0c? I'm using 6.01 kl/mol for fusion of water, 75.4 j/mol-c for heat capacity of water and 36.4 j/mol- c for molar heat capacity of ice.
Monday, October 24, 2016 by Kurt
In an experiment ti determine the density of a liquid the following pieces of information were obtained. Mass of empty bottle=50g Mass of bottle and liquid=85g Volume of liquid=100cm^3 Use the information to determine the density of the liquid
Sunday, October 23, 2016 by Patrick
suppose a skydiver (mass = 75 kg) is falling toward the earth. when the skydiver is 100 m above the earth he is moving at 60 m/s. at this point calculate the skydiver's
Saturday, October 22, 2016 by Michelle
an object of mass 2 kg is dropped from a certain height.On rebounding from the ground,it rises vertically till 2/5th of its initial height.what will be the ratio of magnitude of momentum of the object just before and after striking the ground?
Saturday, October 22, 2016 by Anonymous
Compare the formation processes of igneous, sedimentary, and metamorphic rocks. In general, which process can be the most direct, requiring the fewest number of steps? Which can be the most complex? I am guessing igneous rocks are the easiest because the formation process ...
Friday, October 21, 2016 by sasha
Which of the following refers to the presentation of patient information in a useful form and the association of other relevant details with it? Computer data Health information Patient data Health data Consumer information Computer dat? was my gut choice
Friday, October 21, 2016 by Anonymous
american goverment check answers
3. The National Science Foundation (NSF) raises money for scientific projects and research in the United States. What kind of agency is&...
Thursday, October 20, 2016 by Anonymous
A gold chain with a mass of 40 grams is placed into a graduated cylinder. The graduated cylinder had a volume of 30 ml before the chain was placed in graduated cylinder. After it was added to the graduated cylinder the volume had risen to 50 ml. What is the density of the chain?
Thursday, October 20, 2016 by Kyra
The above is an article which I had to read for homework and one of the questions that I have to answer is as follows: Which bucket(s) could be supported with evidence from this Document? I do not understand this at all. Please help me.
Thursday, October 20, 2016 by Donald
For many years it was believed by geologists that the location of the continents was fixed.These scientists believed that the locations of the continents was determined many billions of years ago,as the young Earth cooled down from its original state as a ball of molten lava....
Thursday, October 20, 2016 by Donald
1. which of the following should be classified as a suspension? A. soda** B. sand in water C. glass D. milk 2. Which of the following is an of example of a chemical property? A. density B. flammability C. hardness** D. melting point 3. Which state of matter has a definite ...
Thursday, October 20, 2016 by Becky
What is the geologic time scale and what are some thing scientists use it for (at least two things)? Here's my answer could you please verify. the geologic time scale is a record of the geologic events and life forms in Earths history. Scientists use it to understand...
Thursday, October 20, 2016 by John
Consider: Brittle materials are approximately considered to be those having a fracture strain of less than about 5%. My answer:. I am not sure what the author is saying here. Is it percent elongation that has to be more than 5% to be consider brittle.??
Thursday, October 20, 2016 by Curious
sales of computer increased by 5% per year over a 7 year period. by what total percent did sales of computers increase during this time period. round the answer correct to one decimal place
Wednesday, October 19, 2016 by s.falk
Which of the following can be used to explain why fossils of the same kinds of organisms can be found in different regions of the world? biogeography adaptation continental drift dispersal I think it is dispersal..but not sure..thank you for your help.
Wednesday, October 19, 2016 by Justin
A vehicle having mass of 1000kg is running with a speed of 5m/s.After apply the force of 1000N for 10sec what will be the speed of vehicle(15m/s)
Wednesday, October 19, 2016 by N.Vineeth
suppose that you swat a bee it stings you. jerking your hand away from the bee is a... A) Motor Neuron B) Reflex** C) Stimulus D) Voluntary Motion
Wednesday, October 19, 2016 by The_extraordinary_doodle_─=≡Σ((((╯°□°）╯
a. Choreographing a performance b. Straining pasta from water after you finish cooking it c. Earning a grade based on how many questions you answered d. Answering an essay question e. Determining who is tall enough to ride a roller coaster f. Making a clay mug by hand Is ...
Wednesday, October 19, 2016 by A
Granite lasts a long time when it is used for building in areas where A. Repeated freezing and thawing is common. B. The climate is mostly cool and dry. C. Acid rain is common. D. The climate is hot and rainy.
Tuesday, October 18, 2016 by Becky
What is the speed of motorist B? By what percentage did motorist A increase his speed for the second hour from the first hour? What is the speed of motorist A for the second hour? When motorist B reached his destination,how far behind was motorist A?
Tuesday, October 18, 2016 by zoha
Label the year and name of each geologic area on your geologic time scale. Using the 1 cm = 10 million years scale, figure out and measure each distance below from the PRESENT line. Pre-Cambrian Era = 4.6 Billion years ago = _______________________ cm from PRESENT What would ...
Tuesday, October 18, 2016 by Ayaka
If a lowercase letter (recessive alle) comes before the uppercase letter (dominant alle) what is the genotype? Can someone help me understand this with good details.
Monday, October 17, 2016 by Ras
Science (Chemistry) Ratio of mole
You measured out 0.101g of Mg. You heat the sample and measure out 0.234 of the magnesium oxide compound. Given your data, what us the empirical formula for the Mg(x)O(y)? x and y are ratio x:y If I'm doing this correctly, I divided 0.101g of Mg/24.31g of Mg = .00415 mol ...
Monday, October 17, 2016 by Ray
PART A: What is Asimov's main idea in this essay? (Science an the sense of wonder) A- space is best appreciated through poetry B- poetry and science can work together****** C- the universe is more than beauty D- scientific knowledge is always advancing Help please!
Monday, October 17, 2016 by Kendra
1. What does "Yo necesito la carpeta de argollas" mean in Spanish? A. You need a calculator. B. I need the three-ring binder. **** C. You need to take science class. D. I need a dictionary 2. What country was Diego Rivera from? A. Cuba B. Puerto Rico C. México...
Monday, October 17, 2016 by Just a confused person...
If we implemented the FSM above six states using two digits 0,1 and only one bit per cycle using the classic ROM + State register circuit (shown below), only one input and outputwhat would be the appropriate number of locations in the ROM and the appropriate width in bits for ...
Sunday, October 16, 2016 by bear
In a class of 40 students;30 offer science; 20 offer mathematics and 8 neither. a.illustrate this information on a venn diagram . b.how Many students offer both subjects. c.how many students offer exactly one subject
Sunday, October 16, 2016 by tori
In this activity, we are going to use 1 mm to represent 1 million years. What does 1 cm represent? 1m? 1.0 mm = 1,000,000 years (1 million) 1.00 cm = 10,000,000 1.0000 m = 10,000,000,000 Is this collect?
Saturday, October 15, 2016 by Mami
Environmental Science please help
True or False ~~~~~~~~~~~~~~~~ 1.Most familiar life-forms live in regions of biomes that humans inhabit. (True) or False 2.Biodiversity is the variety of life-forms that exist or existed in the past. True or (False) 3.Changes in an organism can't occur because of an ...
Saturday, October 15, 2016 by GummyBears18
A 2cm tall object is placed perpendicular to principle axis of a convex lence of focal length 10cm. The distance of object from lence is 15cm. Find nature of position and size of image. Also find its magnification
Saturday, October 15, 2016 by Prerna
in a grade 7 class, 36 students are either members of the math club or science club or both. 10 students are members of both clubs. if 31 students are members of the math club how many are members of the science club?
Saturday, October 15, 2016 by iselle
eng, math, science, geography
The marked price of a book is double that of its cost. In a sale, what percentage discount was given if the profit made was 20% of the cost?
Saturday, October 15, 2016 by grace leung