Questions Asked on
October 27, 2017

Physic question help
A uniform disk with mass 9.6 kg and radius 2.7 m is pivoted at its center about a horizontal, frictionless axle that is stationary. The disk is initially at rest, and then a constant force 31.5N is applied to the rim of the disk. The force direction makes
asked by Anonymous 
Physics
The quantity E^2 − p^2c^2 is an invariant quantity in Special Relativity. This means that it has the same value in all inertial frames even though E and p have different values in different frames. 1)Show this explicitly by considering the following
asked by Yves 
simple harmonic motion
Quick question: I need to find the acceleration, velocity and displacement at the mid point of SMH. So I know these are the equations: x(t) = Asin(ωt + φ) vx(t) = Aω cos(ωt + φ) ax(t) = −Aω2 sin(ωt + φ) I assume that the displacement is greatest
asked by Anon 
Science
How can you purify a water using only materials at home? How will you know if it is purified or not?
asked by Anonymous 
Math
bert is twice as old as jeff. John is 4 years younger than bert. The sum of their ages is 31. How old is bert?
asked by Olivia 
chemistry
For the reaction 2CO(g)+O2 《=》2CO2 with equilibrium constant Kc. Suppose the equation is rewritten as CO + 1/2O2 《=》CO2 with an equilibrium constant Kc'.what is the relationship between Kc and Kc'
asked by Emem 
math
Three girls shared a cake .A gets 3/8 of the cake , B gets 1/4 of the remainder . How much does C get ?
asked by saif 
English
Why does the pencil look bent in the water? 1. It's because light travels slower through water than through air. 2. It's because the light travels slower through the water than through the air. 3. It's because light goes slower through water than through
asked by rfvv 
chemistry
For the reaction 2CO(g)+O2 《=》2CO2 with equilibrium constant Kc. Suppose the equation is rewritten as CO + 1/2O2 《=》CO2 with an equilibrium constant Kc'.what is the relationship between Kc and Kc'
asked by Emem 
chemistry
Phosgene is a potent chemical warfare agent that is now outlawed by international agreement. It decomposes by the reaction CoCl2(g)=>Co(g) + Cl2(g), Kc=8.3×10^4.calculate [CoCl2] when 0.100mol CoCl2 decomposes and reach equilibrium in a 10L flask
asked by Emem 
maths
a ball is dropped on the ground.The time interval between the 1st and 2nd bounce is 1.2s.The interval between the 1st and 2nd and 3rd bounce is 0.9s.Assume that successive time intevals form a geometric progression with an infinite number of terms.Hence
asked by eze 
algebra
How would you graph the inequality 3r+5>3r2 on a number line? I know first you have to solve for r, and I did that (5>2). I'm having trouble putting it on a number line though.
asked by asuadg31 
Physics
How much work must be performed by a hand or other such agent to move the 8kg block very slowly 10 cm to the right if the attached spring was initally relaxed? Let k = 200 N/m and mK = 0.5.
asked by Tunchiie 
Algebra
The partners are given the literal inequality ax+b>c to solve for x. Joaquin says that he will solve it just like an equation. Serena says that he needs to be careful because if a is a negative number, the solution will be different. What do you say? What
asked by asuadg31 
Health
1. Your respiratory system is the system in your body that is responsible for breathing. True False 2. The lungs are made up of thick fibrous tissue. True False 3. Internal respiration takes place in the alveoli. True False 4. The alveoli are located at
asked by Carryyourtorches 
History
I am stuck on the question "How did the southern response to the 1860 election results demonstrate the connection among sectionalism, slavery, and the states' rights?" Can someone link me a website? Please don't give me the answer because I like history.
asked by Rylie 
math
3/5+3/17= 2 1/2 1 0 need help
asked by Muhammad 
math
Write a 2column proof Given: RS=~TS, V is the midpoint of RT Prove: /\RSV=~/\TSV /\ is the triangle sign
asked by james 
math
write a two column proof for this Given:QRTU , S is the midpoint of QT Prove: /\ QSR=~/\TSU /\ IS the triangle sign =~ is the congruent symbol
asked by james 
Physics :(
Bobby is pushing a 20kg box up a plane inclined at 27 degrees above the horizon b. find the force bobby needs to push
asked by Anonymous 
algebra 2
what is the number of real solutions 11x2=x+11
asked by the world forgot 
math
write a two column proof. Given: RS=~ TS, V is the midpoint of RT Prove: /\RSV=~ /\TSV /\ is the triangle sign =~ is the congruent sign
asked by John 
science
A stones drops from the edge of the roof .it passes a window2.5m high in 0.1s.how far is the roof above the top of the window?
asked by sssss 
Social Studies
What did the differences between federalists and democratic republicans suggest about national politics in the years following Washington's presidency?
asked by Kinsey 
Grammar/Langauge arts
Hi, so I am writing an essay and couldn't figure out in the sentence below I should use affect or effect. If anyone could help I would appreciate it :). This includes the objectives of the sports, what the environments are like, and the effect the sport
asked by thezombieunicorn 
Calculus
Consider the area between the graphs x+2y=4 and x+4=y2. This area can be computed in two different ways using integrals 1) Compute as a sum of two integrals 2) Compute as a single integral 3) Either way, what is the area? __ So for 1) I rewrote the two to
asked by Troye 
Chemistry
1) Find the pH of 0.54 M C5H5N(aq) given that its Kb = 1.7×10^9. The answer I got is 2.75 but I got it wrong. The answer is supposed to be 9.48. Why? 2) Find the pH of a 0.864 M NH4Cl solution given that the Kb of NH3 = 1.8x10^5 at 25 °C. How would I
asked by Sri2734 
Middle East
the role played by the Suez Canal during the government of Nasser and how it affected the relationship with the US and Britain.
asked by Darlene 
Health
The legal drinking age in the US is 21. True * False The legal BAC for underage drivers is less than 0.4 True * False If you have food in your stomach, it will soak up the alcohol. True False* If someone takes an aspirin before they drink, it'll prevent a
asked by Dylan 
Social studies
what was one cause of the english civil war? 1.Elizabeth was a bad queen 2.William and Mary were catholic*** 3. Henry VII refuses to marry 4. Charles I did not recognize Parliament’s power
asked by Kayla Da Goddess 
PreCalculus
Solve the equation on the interval [0,2pi). 2sin^2x3sinx+1=0 (2sinx+1)(sinx+1) I don't think I did the factoring correctly. When I multiply it out to double check I get 2sin^2x+3sinx+1
asked by Jan 
History
Which accurately describes the impact of the Treaty of Tordesillas on trade? the treaty of Tordesillas awarded Portugal African territories and presentday Brazil, whereas Spain was awarded the rest of the Americas, which greatly improved Spain's power and
asked by malia 
Social Studies
which of the following causes listed on the chart was resolved by the constitution A. A ability of the national government to deal with state issues. B. the violation of the treaty Paris by Britain. C. the process which civil unrest is handled by the
asked by Duece 
History
Which accurately describes the purpose and history of the Dutch East India Company? the dutch east India company was granted a monopoly of the spice trade by the Dutch government and subsequently owned its own military and colonies in the Pacific the dutch
asked by malia 
Math
Given: measure of angle D=~ measure of angle F ; line GE bisects angle DEF Prove: line DG=~ line FG =~ is the congruent sign
asked by Rachel 
History
Which accurately describes the triangular trade? the triangular trade consisted of ships traveling from Spain to France, then to england, and back to Spain to trade goods such as weapons, maps, and works of arts the triangular trade consisting of ships
asked by malia 
Algebra
Rationalize the denominator. (Square root of (b)+(square root of (3))/(square root of (b)(square root of (3)).
asked by Keonn`a 
tourism and hospitality
A parking facility would be an example of a ________________________. service core product facilitating product all of these c?
asked by malia 
Math
When 12 gallons of diesel are put into a truck's tank , the indictor goes from 1/2 tank to 7/8 what is the total capacity of the diesal tank ?
asked by Deana 
modern studie
what enabled northern Italy to sponsor learning
asked by sherdin 
history
Could someone please tell me how the second president of the US, John Adams, lived prior to the war please? God bless you.
asked by turtles♥are♥cute♥ 
Math
Given: measure of angle D=~ measure of angle F ; line GE bisects angle DEF Prove: line DG=~ line FG =~ is the congruent sign
asked by PLEASE ANSWER 
History
Which best describes accomplishments of Ferdinand Magellan? he sailed around the southern tip of Africa before reaching Calicut, India. he sailed to the Caribbean islands and pioneered trade between Europe, Africa, and the Americas he sailed around South
asked by malia 
Math
the cote family car gets between 25 and 29 miles per gallon of gasoline the fuel tank holds 17 gallons of gasoline and the cotes refill the tank whenever it is 1/4 full the cost of gasoline will be 3.46 and 3.69 per gallon A) write expressions to estimate
asked by Anonymous 
math
A spice store charged 2.75 for 25 grams of paprika. It also charges 5% of the purchase price for shipping any order. Write and simplify an expression to determine the cost of buying and shipping x ounces of paprika. Use 1 once = 28 grams Can a customer buy
asked by Angela 
math
list all factors of 30 plz hurry
asked by Kaleb 
History
Which accurately describes the role of British corporations in the New World and their effect on colonists’ opinions of England’s monarchy? colonist were forced to purchase their goods only from British corporations, adding a colonial animosity toward
asked by malia 
History
when citing an article which does not give you the authors names how do you cite it?? MLA Format.
asked by D.<3 
Math
A lily pad grows so that each day it doubles its size. On the twentieth (20th) day of its life, it completely covers the pond. On what day day was the pond half covered ?
asked by Jaheme 
History
Which accurately describes exploration events of Sir Francis Drake? drake found a northwest passage to Asia through presentday Canada drake sailed to the new world and founded the colony of Jamestown drake sailed north along the coast of Greenland to find
asked by malia 
Math
Five players agree to divide a cake fairly using the last diminisher method. The players play in the following order: Anne first, Betty second, Cindy third, Doris fourth and Ellen last. Suppose that there are no diminishers in round 1 and Cindy and Doris
asked by Dion 
Math
Given: measure of angle D=~ measure of angle F ; line GE bisects angle DEF Prove: line DG=~ line FG =~ is the congruent sign
asked by PLEASE ANSWER 
History
What was the purpose of multinational corporations during the Age of Discovery? to overthrow monarchies and promote capitalism to promote free trade among European nations to colonize foreign lands to make a profit to lead crusades against the Arab empire
asked by malia 
tourism and hospitality
Positioning, or branding, is the creation of ________________________________. an image for a product in the minds of costumes the product the value of the product all of these b?
asked by malia 
tourism and hospitality
What three things strongly affect marketing decisions? politics, economics, and demographics whether, education, and gender music, color, design preferences CEOs, managers, and salespeople A?
asked by malia 
math
can someone review my answers 1. Express 5/8 as a decimal Answer: 0.875 2. express 1 1/20 as a decimal Answer: 1.2 3. express 2.6 as a mixed number Answer: 2 6/10
asked by help 
Math
A box has 9 marbles, 4 of which are white and 5 of which are red. A sample of 5 marbles is selected randomly from the box without replacement. What is the probability that exactly 3 are white and 2 are red? (Enter your answer as an exact fraction.)
asked by Anonymous 
Chemistry
Why wasn't information about the mass of isotopes sufficient for identifying the isotopes? Provide an example to explain the answer. Figure 2 shows 2.5 min averaged spectra of ambient aerosol at nominal m/z 208 obtained with the HRAMS located at T0. Panel
asked by Joe 
math
ABC is a sector of a circle with radius R cm and centered at C. The arc DE lies on a circle also centered at C.If the arc DE divides the sector ABC into two regions of equal area. Find the length of the interval CD in terms of R.
asked by Lala 
History
Explain the main sectors of the economy in Egypt.
asked by Mr. Carter