Posts by Jake
Total # Posts: 2,304

Physics
A juggler tosses a 0.4kg ball straight up at 8m/s, and then catches it at the same height . a. determine the acceleration on the way up and down b. determine the total amount of time spent in the air by the ball. (hint: you know the displacement) c.determine the velocity of ... 
Chemistry
thats the part I cannot get.. how to balance them 
Chemistry
Complete and balance the precipitation reactions. Include physical states in your equations. Ba(NO3)2(aq) + CuSO4 (aq)> K3PO4(aq)+MgCl2 (aq)> 
Algebra 1
OH Thank you 
Algebra 1
Which statement is always a correct conclusion about the values x and y in the function y=x3? a. The value of x is always 3 less than the value of y b. The value of y is always less than the value of x c. When the value of x is positive, the value of y is also positive d. As ... 
Chemistry
Among the following, which element has the lowest ionization energy? A. Na B. Cl C. Cs D. I 
math
I have the same sheet as you 
physics
bill and bob are both on the roof of a building 176.4 m high. bill drops a penny straight down at the same instant, bob throws a dime vertically upwards. the dime is thrown over the age when it comes back down it misses the roof and follows the penny to the street below. how ... 
physics
bill and bob are both on the roof of a building 176.4 m high. bill drops a penny straight down at the same instant, bob throws a dime vertically upwards. the dime is thrown over the age when it comes back down it misses the roof and follows the penny to the street below. how ... 
Algebra 1
I DID IT NEVER MIND 
Science
I don’t know 
math
A log cabin in the shape of a rectangular prism is modeled using a scale of 1 cm : 0.6 m. If the dimensions of the model are 34 × 20 × 6 centimeters, what is the volume of the actual log cabin? 
Math Explanation
Carl needs to estimate the quotient 547/92=. Explain how Carl could use compatible numbers to make a reasonable estimate. 
Chemistry
A metal foil has a threshold frequency of 5.45× 1014 Hz. Which of the colors of visible light have enough energy to eject electrons from this metal. 
chemistry
thank you; answer is 0.4177 or 4.2 
Chemistry
The tripeptide is TAK 1. What is the overall charge of the tripeptide below pH 1.0? 2. What is the overall charge of the tripeptide at pH 12? 3. What type of intermolecular attractions could the side chains of the amino acids make with the solvent (water) at pH 7.4? (Note ... 
Chemistry
1. What is the overall charge of the tripeptide below pH 1.0? 2. What is the overall charge of the tripeptide at pH 12? 3. What type of intermolecular attractions could the side chains of the amino acids make with the solvent (water) at pH 7.4? (Note that these are attractions... 
Science
Briefly describe a desalination process. What can make desalination expensive? Name 2 renewable energy sources that can be used in desalination. Help me please and thankyou =) 
Math
How would you solve this inequality 3(n+8)<173n 
Math
How you solve this in inequality form? Six less than or equal to the sum of 4 and 2x. 
Math
How would you solve this word problem in one variable inequality form? The maximum safe water temperature in a spa is 104 degrees. The water temperature in bill's spa is 102 degrees. The temperature is increased by, d, degrees. Write and solve an inequality to show the ... 
Spanish 1
No me gusta la lechuga porque no es _____. A. sabrosa B. sabroso C. malo D. horrible D? 
Science
For the second question the answer is feedback 
Science Significant Figures
212 
Two Voice poem
I mean the poem sorry. this is very good it helps me as well. thx 
Two Voice poem
love ya 
PSY317
How does CUPID help normal Aging? 
PSY317
What specifically is the acronym CUPID? 
Spanish 1
Which expression means the same as this one: ¿Son las siete menos veinte? A. Son las siete y veinte. B. Son las ocho y veinte. C. Son las seis y cuarenta. D. Son las siete y cuarenta. B? 
ENG
Discuss the primary characteristics of ageirrelevant theories and agechange theories. What are the fundamental principles of both types of theories? 
EDU352
What are five to seven movements in the field of educational technology that you believe the K12 large, urban school district should pay attention to. Thank You, 
science
How is a parent generation of a fern different from the generation that comes before or after it? 
physics
9.8/8.4 answer: 1.16666 
physics[
Consider a spacecraft whose engines cause it to accelerate at 5.0 m/s2. (a) What would be the spacecraft’s acceleration at a later time if half its fuel has been used up? (b) What assumptions have you made in order to answer (a)? 
physics
A 78kg parachutist, in the first few seconds of her jump, accelerates at a rate of 7.4 m/s2 [down]. Calculate the force she experiences due to air resistance. 
physics
A dolphin experiences a force of 320 N [up] when it jumps out of the water. The acceleration of the dolphin is 2.6 m/s 2 [up]. (a) Calculate the mass of the dolphin. (b) What would be the acceleration of the dolphin if it had the same strength but half the mass 
health
A? 
physics
The Moon has a mass of 7.35 1022 kg and its equatorial radius is 1.74 106 m. Earth’s mass is 5.97 1024 kg and its equatorial radius is 6.38 106 m. (a) Calculate the magnitude of the gravitational force exerted by i) the Moon on a fully suited 100kg ... 
physics
Calculate the time required for an astronaut to freefall 50 m on the Moon. Please show and explain steps answer is 7.9s 
physics
A 7.50kg turkey standing at the top of Ishpatina Ridge, at 693 m the highest point in Ontario, weighs 73.5 N [down]. Calculate the magnitude of the gravitational field strength at this location. answer is 9.8N/Kg 
physics
At the 2004 Olympic Games in Athens, Dwight Phillips won the gold medal in men’s long jump with a jump of 8.59 m. If the angle of his jump was 23°, what was his takeoff speed? (Treat the jumper as an object; ignore that his legs are in front of him when he lands.) 
physics
a football is thrown to a moving receiver .the football leaves the quarterback's hands 1.75m above the ground with a velocity of 17.0m/s[25deg]if the receiver starts 12.0m away from the quarterback along the line of flight of the ball when is is thrown , what constant ... 
physics
a football is thrown to a moving receiver .the football leaves the quarterback's hands 1.75m above the ground with a velocity of 17.0m/s[25deg]if the receiver starts 12.0m away from the quarterback along the line of flight of the ball when is is thrown , what constant ... 
English
In Adventures of Huckleberry Finn, Jim and Huck both decide that their relationships with their friends and loved ones are more important than their freedom, lives, and in Huck's case, his soul. Do you think modern heroes can make the same kinds of choices? In one ... 
English
Thank you so much! I found the two other examples for Huck and now I just have 2 of Tom's examples! 
English
Mark Twain used the characters his novel "Adventures of Huckleberry Finn" to show his contempt for the romantic style of literature. List three examples from the text that support the label for each character. Huck Finn Realism Tom Sawyer Romanticism This is ... 
Physics
A solid sphere rolls without slipping from rest down a plane at 4.00m long inclined at an angle of 42 degrees with respect to the horizontal as shown in the figure below. Determine the speed at the bottom of the incline. 
English
What conflicts are in "Son" by John Updike? External and internal? 
summery
how do u write a summery 
summery
thanks alot ms.Sue 
summery
my teacher told me to find something funny about brooklyn. i spent 2 1/2 hours in looking for it but couldn't find anything. plssssssssssss u must help me im getting tierd of looking at the computer screen. 
physics
orange light (lambda=630nm) hits diffraction grating which has a line spacing of (mu)m. The interference pattern is seen on a screen that is 4.0m away. what is the distance between the central bright spot and the first order bright spot on the screen. (sorry I don't have ... 
Chemistry
A) Determine the pH of a 0.98 x 10^2 mol L solution of hydrocyanic acid (HCN) Ka = 4.0 x 10^10 B) What is the pH of a 0.243mol L solution of methylamine? (pKb for CH3NH2 = 3.30) C) determine the pH of a buffer solution of Na2CO3 (pkb = 3.68, 0.125 M) and NaHco3 (0.35M) 
science
How many moles S are required to prepare 800 liters of SO2 gas in a synthesis reaction? 
Physics
Four resistors 2.1Ω, 3.2 Ω, 4.3 Ω, and 5.4 Ω are connected in a series to a 9 V battery. The effective resistance in the circuit is: 
math
One train left the station and traveled toward its destination at a speed of 65 miles per hour. Later, another train left the station traveling in the opposite direction of the first train, it was going at a speed of 75 miles per hour. After the first train had traveled for 14... 
American History
Following the Spanish American War. and espeacially in regard to American occupation of the philippines, most antiimperialists argued that... A. The occupation would lead to unhealthy racialmixing. B. Because all war was immoral, the fruits of war were tainted. C.installing... 
Physics
If the EMF produced in a wire is 0.88 volts and the wire moves perpendicular to a magnetic field of strength 0.075 newtons/amp·meter at a speed of 4.20 meters/second, what is the length of the wire in the magnetic field? 
math
If a pencil costs 300% more than an eraser and the eraser costs 25 cents, what is the cost of the pencil? 
Hospitality
According to the Farm to Table speaker's, local Farmer's Market's are a key source of produce and other food products for them weekly True False I say, true because food is what farmers produce? 
Hospitality
A key benefit identified as being part of the Food Service industry that Compass is not having to work nights and weekends regulary. True of False. I say True, becaue when you don't work during nights at food industries?? what do you think 
Hospitality
I was more toward the true as well but was confused. Thanks Ms. SUe!!! 
Hospitality
A key difference between Social and Corporate event planner work is the days of the week that are usually worked. True or False 
geometry!!! please help me!!!!
3434 
history
Which of the following is true with regards to The Navigation Acts by the eighteenth century? A In general, the colonist despised the acts and smuggling was rampant. B The Navigation act of 1696 abolished the American customs service. C The colonists became used to buying ... 
Retirement
50,000.00 
math
A standard die is rolled three times. What is the probability that a prime number is rolled on exactly one of the three rolls? 
Algebra
Please Help! How much money, invested at an interest rate of r% per year compounded continuously, will amount to A dollars after t years? A = 15,500, r = 5.4, t = 5 
math
oh thanks 
math
1. Which set represents a Pythagorean triple? A:2,5,6 B:6,8,10 C:8,8,128 D:8,10,256 2. What is the hypotenuse of a right triangle if the legs are each 20 inches long? Round to the nearest whole number. A:28 B:29 C:30 D:31 I think the first ones B, and the second one is C 
math
86 
physical science
How much energy is stored in a 9V battery rated at 10 A hour? 
Chemistry
An unknown amount of gas occupies 30.0 L at 2.1 ATM and 298K. How many moles does the sample contain? What is the mass if the gas is helium? What is the mass if the gas is argon? 
Chemistry
what volume does 3.01x 10^21 molecules of N2 occupy at STP 
English (Check Please)
1. urgency. 2. the life of city dwellers 3. his awe at the starry sky above the camp 
math
Multiply both sides by 1/2 (1/2)(2y) = (1/2)(4/3) y = 4/6 y = 2/3 
algebra
I think this problem is really (3x  2) / 3x = 4 / 3 [cross multiply] 3(3x  2) = 4 * 3x 9x  6 = 12x 9x 6 + 6 = 12x +'6 9x = 12x + 6 9x  12x = 12x + 6  12x 3x = 6 x = 2 
grade 6 honors math
Thanks. Saiko 
grade 6 honors math
Of 150 sixth graders choosing electives for next year, 50 signed up for theater, 65 signed up for art and 70 signed up for band. Some students did not choose an elective. Represent this information using Venn Diagrams. 
math
The question does not make sense. Did you copy it correctly? 
Algaebra
First, draw a picture to represent the pool with walk around it. Let x = width of pool, then x + 5 = length of pool x+ 9 = length of walk, and x+4 = width of walk Area of pool = x(x +5) Area of walk and pool =(x + 9)(x + 4) Area of pool + 156 = Area of walk and pool x(x + 5... 
calc
find the limit:x>3 ln(x/3)/x^29 
MathPopulation Word Problem
Ohh my gosh, thank you. I was just confused about "a" but the extra information cant hurt. Thank you so much. 
MathPopulation Word Problem
thank you very much, it all makes sense now except for a. could you explain how you get that number. I plugged it into a calculator and it is correct but i just don't understand how it works. 
MathPopulation Word Problem
The population of rabbits in a national forest is modeled by the formula P=8,600+650 ln(t+1) where "t" is the number of years from the present. a)How many rabbits are now in the forest b)Estimate when it will take for the number of rabbits to reach 12,000? c)Estimate... 
Writing
I rock 
English
In which sentence is the underlined word a past participle? Melted rock can explode or flow from different types of volcanoes. Having been warned of a possible eruption, the people left their town at the base of the volcano. Flowing lava from a volcano is an amazing sight to ... 
physical science
A 150L water heater is rated at 8 kW .If 20 percent of its heat escapes, how long does the heater take to raise the temperature of 150 L of water from 10C to 60C? 
Chem
When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed? 
Social Studies
The second answer is wrong it should be D 
Calculus
An ocean oil well is leaking oil into the ocean at a rate of 1 m3/hr resulting in an oil slick in the form of a circular disk (like a quarter or dime). If the slick remains in the shape of a disk with a constant thickness of 1/100 m as the disk expands, determine the rate at ... 
Calculus
An ocean oil well is leaking oil into the ocean at a rate of 1 m3/hr resulting in an oil slick in the form of a circular disk (like a quarter or dime). If the slick remains in the shape of a disk with a constant thickness of 1/100 m as the disk expands, determine the rate at ... 
Calculus
An ocean oil well is leaking oil into the ocean at a rate of 1 m3/hr resulting in an oil slick in the form of a circular disk (like a quarter or dime). If the slick remains in the shape of a disk with a constant thickness of 1/100 m as the disk expands, determine the rate at ... 
Geometry
base of a gm is base x height base  x height  x+5 s(x+5) = 204 x^2 + 5x  204 = 0 (x12)(x+17) = 0 x = 12 or a negative base is 12, height is 17 
physics
11.4 
math
what is 21/2 x 1/2 
physical
A 70kg man and a 50kg woman are in a 60kg boat when its motor fails. The man dives into the water with a horizontal speed of 3m/s in order to swim ashore. If he changes his mind, can he swim back to the boat if his swimming speed is 1m/s? If not, can the woman change the ... 
physical
When 1 g of gasoline is burned in an engine, about 48 kJ of heat is produced. How much mass is lost in the process? Do you think this mass change could directly measured 
Science
If there was zero change in Earth’s eccentricity, how might that affect the possibility of an ice age? 
physics
. A 70kg man and a 50kg woman are in a 60kg boat when its motor fails. The man dives into the water with a horizontal speed of 3m/s in order to swim ashore. If he changes his mind, can he swim back to the boat if his swimming speed is 1m/s? If not, can the woman change the ...