A small water tank which holds 5000 litres of water is filled with a pump in 10 minutes. The tank is 30m above the ground. Calculate the increase in gravitational potential energy of the water.
Friday, April 15, 2016 by nikiwe
EVALUATE THE PHYSICAL,SOCIAL AND ECONOMIC CONSEQUENCES OF THIS CRIME TO THE OFFENDER.HOW DOES THIS CORRUPTION AND FRAUD IMPACT NEGATIVELY IN SOUTH AFRICA
Thursday, April 14, 2016 by promise
Maths Lit, Geography, English, LO, EGD, Afr.
I am very good at Geo and EGD. Because I didn't take Physical Science, I cannot get into varsity for any engineering degree courses. Can you make alternative career choices available that might include these two subjects?
Thursday, April 14, 2016 by Tanner Gibson
evaluate the physical, social and economic consequences of this crime to the offender.How did this corruption and fraud impact negatively in the country; for example service delivery, tax, expense of trial. ......1 to 2 pages pls I need ur help
Tuesday, April 12, 2016 by Gudani Paris
Here are all the word you can use chemical property mixture heatcapasity homogeneous viscosity sublimitation physicalproperty compound chemicalformula substance density mass tempurature pressure heterogenerous A _________ property of matter describes its ability to change into...
Monday, April 11, 2016 by jacob
When a rocket is 3km above the ground,it has an upward velocity of 10 m.s^-1.A booster rockect is fired downward,resulting in a net force of 6000 N being exerted upward on the shuttle.The time it takes the booster to leave the shuttle after being fired is 2,5 seconds.if the ...
Sunday, April 10, 2016 by jeniffer
A car starts from rest and accelerates uniformly for 250 meters. It then moves with a constant velocity for 500 meters and slows down to rest in 300 meters. The whole trip takes 50 seconds. How long did the car move at constant velocity?
Saturday, April 9, 2016 by zinhle
Please check my answer!! I would be great if you could explain this to me a little as well... To find the amplitude, measure_____ a. the horizontal distance between consecutive positions b. the horizontal distance between a consecutive crest and trough c. vertical distance ...
Friday, April 8, 2016 by Becca
How does a change in one nucleotide in one triplet code can change the nature of a protein and therefore the form of the trait ? I believe this has something to do with mutations. I know that mutation may result from errors in DNA replication or recombination, or physical or ...
Thursday, April 7, 2016 by Jamie
What is anything that has mass and takes up space? 1) Weight 2) Volume 3) Density 4) Matter When you measure the boiling point of mercury, you are investigating a ____. 1) Chemical change 2) Chemical property 3) Physical change 4) Physical property Ab object weighing 90 N has ...
Wednesday, April 6, 2016 by Lulu
Complete the following equilibrium reactions that are pertinent to an aqueous solution of Ag2CO3. Physical states, s, l, g, and aq, are optional. So far I worked it out to be: Ag2CO3(s) <--> 2Ag^+ + CO3^(2-) H2CO3(aq) + H2O(l) <--> H3O^(1+) + (HCO3)^(-) HCO3^(-)(aq...
Wednesday, April 6, 2016 by Craig
When water freezes and becomes solid ice, the hydrogen bonds create a crystal structure and there is fixed space between each water molecule. This causes ice to? a.become more dense than liquid water because it is a solid* b.become less dense than liquid water and therefore ...
Tuesday, April 5, 2016 by Boberto
For my project it says "Circle all physical characteristics that are used as a part of your country's boundaries" I am doing the country of India so wwhat would be an example of the physical characteristic used for a boundary I suppose?
Monday, April 4, 2016 by Anonymous
Write a sentence explaining the meaning of the slope and y-intercept for the given linear relation. According to the Statistical Abstract of the United States, the number of crimes, C, reported since 1998 is given by the equation: C=31000-29t where t is in years. A. What is ...
Thursday, March 31, 2016 by Anon
A 20.0-Ù resistor and a 45.0-Ù resistor in parallel are connected to a 120-V dc source. (a) What is (are) the current(s) through the resistors? current through the 20.0-Ù resistor: Incorrect: Your answer is incorrect. . A current through the 45.0-Ù ...
Wednesday, March 30, 2016 by Brian
13.the physical feature of western europe where most major cities are found is called A.the plains (MY ANSWER) B.the glacier C.the tundra D.the taiga 14.what made the rhine river one of europes most polluted rivers? A.urbanization B.loess C.industrial waste (MY ANSWER) D....
Tuesday, March 29, 2016 by LOVE
Geography,maths lit,life science,physical science,xhosa,life orientation and english
Will i be able to do law with the following subject maths lit,geography,life science,physical science and english
Tuesday, March 29, 2016 by Amanda mnyaka
ONE SECOND after ball A is projected upwards with a velocity of 16 m/s, a second ball, B, is thrown vertically downwards at a velocity of 9 m/s from a balcony 30 m above the ground. 1.Calculate how high above the ground ball A will be at the instant the two balls pass each other?
Sunday, March 27, 2016 by Khutso
Are the borders of India (suuch as China, Nepal, Bangladesh, and Burma) related to culture (ethnic boundary) or more related towards physical features? I'm not sure how I can tell
Saturday, March 26, 2016 by Anonymous
The specific heat of aluminum is 0.897 J/g°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.385 J/g°C x 22°C B. Q = 0.75 g x 0.385 J/g...
Friday, March 25, 2016 by Anonymous
What is the density of a rectangular block that has a mass of 500g and a volume of 50cm3? what i came up with was 1000. i feel like im wrong though. can anyone please help me.
Thursday, March 24, 2016 by Please Help
Health and physical education
The peripheral nervous system (Select all that apply)A. Is made up of the brain and spinal B. cord Links the body to the brain C. Is made up of sensory and motor neurons D. Is responsible for thought and reasoning.......A and C?
Wednesday, March 23, 2016 by Haruhi
LOCAL STANDARDS AND REGULATIONS
Local, state, and provincial governments may have specific regulations that apply to the physical space in a day care center. A typical requirement in these regulations is a minimum of _______ square feet of usable play space for each child. A. 35 B. 24 C. 10 D. 18
Tuesday, March 22, 2016 by Anonymous
physical sciences, Life sciences, geography and Mathematics
which jobs are related to these subjects?
Monday, March 21, 2016 by lihle
Please Check! 1. How does nanotechnology help engineers make products for the future? a. By changing a materials atomic structure, it can be made from elements that are easier to obtain.*** b. By changing a material's atomic structure, its physical properties can also be ...
Friday, March 18, 2016 by SpitFireRedHead
Science Please Check
Please Check 1. How does nanotechnology help engineers make products for the future? a. By changing a materials atomic structure, it can be made from elements that are easier to obtain.*** b. By changing a material's atomic structure, its physical properties can also be ...
Friday, March 18, 2016 by Blair
I have a quiz and want to check them out to see if I got them correct: Question 1. When is it considered safe to provide both positive and negative examples of performance to students? (Points : 1) when the learners understand the skill when the learners have practiced the ...
Thursday, March 17, 2016 by Mike
You digestive system has three main functions: digestion, absorption, and elimination. In which organ does absorption begin? A)Mouth B)Stomach C)Small intestine (MY ANSWER) D)Gallbladder
Thursday, March 17, 2016 by LOVE
1. What would happen to an object if the force of gravity on Earth was decreased by half? (1 point) Its mass would decrease. Its weight would decrease.* Its density would decrease. Its volume would decrease. 2. Which of the following represents a heterogeneous mixture? (1 ...
Wednesday, March 16, 2016 by jai
1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. **?? b. The Grand Canal in China is a man-made waterway, still used, that is the oldest in the world. c. The ...
Monday, March 14, 2016 by Etta
of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. b. The Grand Canal in China is a man-made waterway, still used, that is the oldest in the world. c. The ...
Monday, March 14, 2016 by Help!
All about DRAMA! P.S. - Please check!
1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. b. The Grand Canal in China is a man-made waterway, still used, that is the oldest in the world. c. The Grand...
Sunday, March 13, 2016 by Etta
What is the final temperature and physical state if water when 47.50 kJ of energy is added to 15.0 g of ice at -10.0 C? Helpful information: Cs (ice) = 2.1 J/g C Heat of fusion (water) = 6.02 kJ/mol Cs (water) = 4.184 J/g C Heat of vaporization (water) = 40.7 kJ/mol Cs (steam...
Saturday, March 12, 2016 by Nevaeh
Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard, would collide with some...
Saturday, March 12, 2016 by Jacob
Over time artwork has the potential to reach a wide variety of audiences. Which is the most accurate definition of audience? A group of people listening to music. Physical evidence of a culture. A group of people with specific beliefs and practices. (This one or D) The people ...
Wednesday, March 9, 2016 by LOVE
1.Artists make shapes in the background smaller than shapes in the foreground to communicate their distance from the viewer. How else might a landscape artist show shapes in the background to depict their distance from the viewer? A. Show shapes with bright colors. B. Show ...
Wednesday, March 9, 2016 by Reign
PHYSICS ( PERIODIC MOTION)
A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 2.01 kg and length L = 0.19 m that is pivoted freely about one end, with a solid disk of mass 3M and a radius of L/4 attached to the free end of the rod. a) What ...
Wednesday, March 9, 2016 by MUSTAFA GHANIM
Maths, geography, life sciences and physical scien
Identify three courses or study fields you are interested in following after grade 12.provide two reasons why you find this a suitable course for each choice
Sunday, March 6, 2016 by Daisy
A 11-kg box is dragged across a frictionless surface by a force F=55N. the box travels 4.0ft. what is the work done by the applied force F and the work done by the normal force?
Friday, March 4, 2016 by barbara
a symmetric projectile spends a total of 20 seconds in the air. it reaches a peak height of 8 meters. how long does it take to reach its peak height? the projectile has a range of 80 meters. what is its horizontal velocity? what is the projectile's horizontal acceleration...
Thursday, March 3, 2016 by anita
a flower pot is dropped out a twentieth story window. how fast will it be moving after 7 seconds? how much is the acceleration 3 seconds after it falls?
Thursday, March 3, 2016 by anita
a piece of metal has a mass of 85 cg and a volume of 450L. What is its density in g/cm^3? What would be the mass of 300cm^3 of this metal? What would be the volume of 200 ounces of this metal?
Thursday, March 3, 2016 by anita
what is the best activity to do immediately after playing tennis? A.Drink plenty of juice and sit in the shade to cool your body down. B.Stretch the leg muscles by bouncing to reach as far as you can each time. C.Stretch your leg muscles by slowly bending over and exhaling ...
Thursday, March 3, 2016 by LOVE
1. The current atomic model would be revised if (1 point) better microscopes were being used to study its structure. better microscopes are invented in the future. new information about an atoms structure is discovered. a new element is discovered in the future. 2. ...
Thursday, March 3, 2016 by Anonymous
Hydrogen sulfide gas burns in the presence of oxygen to produce sulfur dioxide gas and water vapor. Write a balanced chemical equation, including the physical state
Wednesday, March 2, 2016 by Jasmine
What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? The explanation from bobpursly was this The sum of heats gained =0 80(cice)(0+15)+80Hf+80cw(...
Tuesday, March 1, 2016 by Student
john wants to get his friend, peter, to a height of 2.8 m above the ground to reach an apple in a tree. they connect a swing to a high branch in an adjacent tree. the bottom of the swing, X, is at a height of 1.2 m. peter has s mass of 45 kg. ignore the effects of any ...
Tuesday, March 1, 2016 by xolani rudolph ngovene
What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? I still don't understand how to do this.
Tuesday, March 1, 2016 by Student
What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? I don't understand the set up. The setup is like this (answered by bobpursly): The sum of...
Monday, February 29, 2016 by Student
What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? I don't understand the set up that I have to set the equation equal to 0 ...
Monday, February 29, 2016 by Student
1. How does nanotechnology how engineers make products for the future? A. By changing a materials atomic structure, it can be made from elements that are easier to obtain. B. By changing a materials atomic structure, it's physical properties can also be changed. C. By ...
Saturday, February 27, 2016 by Rhyleigh
REPOSTHealth PLEASE CHECK ANSWERS
1. According to the National Clearing House for Alcohol and Drug Information (NCADI), most children under the age of _____ , who do not participate in drug and alcohol abuse, is virtually certain to never do so. 20 21**** 23 19 2. The average age when youth first try alcohol ...
Friday, February 26, 2016 by GOY
Johnny left a glass of milk on his bedside table for week, and it spoiled. At the end of the weel, the glass contained a yellow liquid with lumpy white chunks, and there was a terrible odor. What can be concluded? A. The milk has undergone a physical change B. The mass of the ...
Thursday, February 25, 2016 by Anonymous
A peice of japanese armor was once used to protect the head of soldiers. This work has since been replaced by twenty-first century fighting gear, but the orginal armor is on display in a museum. This change over time is an example of? 1. A once-functional piece of equipment ...
Wednesday, February 24, 2016 by LOVE
What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is Tf= 109 C? Is it in the steam phase?
Wednesday, February 24, 2016 by Student
When the body temperature drops, this has the effect of reducing the potential across the axonal membrane slightly. At a body temperature of 30°C, the potential difference experimentally measured concentration of Na+ ions inside the lipid bilayer is 10^18 NA+ ions/cm^3. a...
Tuesday, February 23, 2016 by Physics lover
Health Truth or False PLEASE CHECK ANSWERS
$$ = MY ANSWER Just as a person inherits physical traits, a person inherits personality traits as well. True $$ False 2. Peers cannot have a direct impact on your personality. True $$ False 3. Your behavior and personality sometimes come directly from role models. (1 point) ...
Tuesday, February 23, 2016 by NOPE
a crate of cooldrinks with a mass of 15kg over a smooth horizontal surface by exerting a force of 80N at 30° to the horizontal. Draw a diagram and aswers the following 1. Draw a force diagram showing and labelling all the forces acting on the crate. 2. Calculate the ...
Monday, February 22, 2016 by Thembelihle Shabangu
a balloon has a volume of 0.5 L at 20 degrees celsius. what will the volume be if the balloon heated to 150 degrees celsius? assume constant pressure and mass. I got 0.7218 L.
Sunday, February 21, 2016 by Emily
The mass of a minibus is 1500kg,assume that the passenger have an average mass of 50kg each.The driver is moving at a speed of 30m/s when he notice that the traffic light ahead have turned to red.he applied a force of 9000N on the break pedal,calculate acceleration of the taxi...
Sunday, February 21, 2016 by ascentia
Imagine two billiard balls on a pool table. Ball A has a mass of 2 kilograms and ball B has a mass of 3 kilograms. The initial velocity of ball A is 9 meters per second to the right, and the initial velocity of the ball B is 6 meters per second to the left. The final velocity ...
Saturday, February 20, 2016 by JCAINE
Suppose the jumbo jet of mass 30000 kg flies against an air resistance of 82000 N while the thrust of all four engines is 100000 N. Find the acceleration
Friday, February 19, 2016 by Ehhhh
1. Which BEST describes the differences that divide Maayan and Muhammad? A. age and interests B. physical barriers C. culture and politics** D. economic status 2. How does Maayan most directly experience the conflict in Israel? A. through treating victims of terrorist attacks...
Friday, February 19, 2016 by Audrey
Health and Physical Ed
If you choose to smoke, your body will use this substance less efficiently. 1:microorganisms 2:carbon dioxide 3:plasma 3:oxygen I think it is #3
Friday, February 19, 2016 by Gabby
a head ball of mass 600g is thrown vertically upwards from ground level and reaches the maximum height of 20metres.calculate the initial velocity of the ball
Thursday, February 18, 2016 by vinny
In an interrogation setting, the strategy of fabricated evidence involves all of the following EXCEPT: A. falsely informing a suspect that an accomplice has ident6ified her or him. B. falsely stating that physical evidence exists that confirms his or her guilt. C. projecting ...
Thursday, February 18, 2016 by Anonymous
A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.03 nm. It then gives off a photon having a wavelength of 396.9 nm. What is the final state of the hydrogen atom? Values for physical constants can be found here.
Saturday, February 13, 2016 by Anisha
4. What measurable property/properties affects the period of a pendulum? 7.Give another example of periodic motion other than simple harmonic motion. 8. If you landed on the moon, could you use the pendulum method to find "g" there? Explain.
Friday, February 12, 2016 by Sherianna
1. According to the National Clearing House for Alcohol and Drug Information (NCADI), most children under the age of _____ , who do not participate in drug and alcohol abuse, is virtually certain to never do so. (1 point) 20 21 23 19 2. The average age when youth first try ...
Friday, February 12, 2016 by untington
A small fish in the pacific ocean watches a shark swim by a large rock a few meters away. Which of the following is a reference point in this scenario? A. shark ** B. large rock C. water D. pacific ocean I think the answer is A, please check!
Thursday, February 11, 2016 by Laci
A car of mass m traveling at a velocity of 20m/s east on a straight level road and a truck of mass 2m travelling at 20m/s west on the same road. ignore the effects of friction. calculate the velocity of the truck-car system immediately after collision. On impact the car exerts...
Thursday, February 11, 2016 by Petunia
What is a substance that cannot be separated into simpler substances by physical or mechanical methods such as filtering, boiling, or sifting? A crystalline solid A sublimation A pure substance An amorphous solid Correct me if I'm wrong
Wednesday, February 10, 2016 by Kiana
If a valid time on a 12 hour time period has the hour hand and minute hand switched, how many times will that result in another valid time? I have found 11, which is when the hour hand points at the same place as the minute hand. I know there is much more, but I can't ...
Wednesday, February 10, 2016 by Andre post for Steve
a flywheel given its angular velocity of 200radian per second and an acceleration of 5radian per second squared in 15minutes.what is angular velocity in radian per second and revolution per minute
Tuesday, February 9, 2016 by Anonymous
Geography of Arabia and Iraq
Question #1: Which statement best describes the physical geography of Arabia and Iraq? A. largely hot and dry with pockets of mountains and fertile river valleys B. tropical, with equal parts rainforest and desert C. mountainous, with diverse terrain and climate based on ...
Tuesday, February 9, 2016 by Gourami