# Jordan

Popular questions and responses by Jordan-
## chemistry

Quantum numbers arise naturally from the mathematics used to describe the possible states of an electron in an atom. The four quantum numbers, the principal quantum number (n), the angular momentum quantum number (ℓ), the magnetic quantum number (mℓ),

*asked on November 4, 2016* -
## physics

You throw a baseball directly upward at time t = 0 at an initial speed of 13.3 m/s. What is the maximum height the ball reaches above where it leaves your hand? At what times does the ball pass through half the maximum height? Ignore air resistance and

*asked on September 7, 2015* -
## Physics

Which of the following is correct for the reflected ray if a light ray strikes a plane mirror at an angle of 50° from the normal? a. 40° from the surface of the mirror b. 40° from the normal c. 50° from the surface of the mirror d. 90° from the normal

*asked on July 12, 2013* -
## science

An orange is placed on a table in a completely dark room, without any source of light. Which of the following choices correctly describes what an observer will see as he looks in the direction of the orange? A) The orange will not be seen at all because

*asked on April 23, 2019* -
## Chemistry

At 25 °C, an aqueous solution has an equilibrium concentration of 0.00147 M for a generic cation, A (aq), and 0.000735 M for a generic anion, B2–(aq). What is the equilibrium constant, Ksp, of the generic salt A2B(s)?

*asked on May 6, 2016* -
## Chemistry

What is the minimum amount of 6.0M H2SO4 necessary to produce 19.0g of H2(g) according to the reaction? 2Al(s)+3H2SO4(aq)→Al2(SO4)3(aq)+3H2(g)

*asked on November 14, 2014* -
## AP GOVT

The 25th amendment describes the sequence of events that would install the vice president as acting president against the will of the president. Outline that sequence of events.

*asked on August 17, 2009* -
## Chemistry

Which of the following compounds contains both ionic and covalent bonds? SiO2 LiCN LiI PCl3

*asked on January 15, 2016* -
## Physics

A shot-putter throws the shot (mass = 7.3kg) with an initial speed of 15.0 m/s at a 33.0 degree angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.00m above the ground.

*asked on September 12, 2009* -
## differential calculus

a man 6 ft tall is walking toward a building at the rate of 4 ft/sec. if there is a light on the ground 40 ft from the building, how fast is the man's shadow on the building growing shorter when he is 30 ft from the building?

*asked on October 14, 2015* -
## Physics

A baseball is popped straight up into the air and has a hang-time of 6.25 s. Determine the height to which the ball rises before it reaches its peak.

*asked on November 1, 2010* -
## physics

An unsuspecting bird is coasting along in an easterly direction at 4.00 mph when a strong wind from the south imparts a constant acceleration of 0.300 m/s2. If the acceleration from the wind lasts for 2.70 s, find the magnitude, r, and direction, θ, of

*asked on September 8, 2015* -
## chemistry

Which neutral atoms have the following electron configurations in either a ground state or excited state? Enter the name or symbol. [Ar]4s23d3 - I know that this is Vanadium [Xe]6s24f1 - I thought that this was Lu but it counts it wrong each time! Help

*asked on November 4, 2016* -
## Physics

The pressure and volume of an ideal monatomic gas change from A to B to C, as the drawing shows. The curved line between A and C is an isotherm. IMAGE:wvw.webassign.n3t/cj8/15-p-031.gif a)Determine the total heat for the process in joules. b)State whether

*asked on November 29, 2015* -
## CHM

Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations A) 0.377 M B) 0.107 M C) 4.16*10^-2 M Ka= 1.9*10^-5

*asked on October 8, 2012* -
## math

the gas tank of a car is 2/3 full. a trip uses up 1/4 of the gas in the tank. how full is the tank at the end of the trip? please include how you got the answer, thanks

*asked on September 21, 2009* -
## sinusoidal functions

State an equation of a sinusoidal graph with the following properties. The central axis is at y = 5 Two consecutive minimums are found at (3, −1) and (13, −1 find values for a,b,c and d

*asked on February 6, 2016* -
## math

A student takes a multiple choice quiz with 12 questions and 5 alternatives per question. Unfortunately, this student has no idea what any of the answers are, so he randomly selects an alternative for each question on the exam. Using this “blind

*asked on September 24, 2015* -
## Math

An access ramp enters a building 1 meter above ground level and starts 4 meters from the building. How long is the ramp? If it is not possible, write “not possible” and explain why it is not possible.

*asked on June 23, 2011* -
## Algebra

a. Do some research and find a city that has experienced population growth. Determine its population on January 1st of a certain year. Write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a

*asked on February 27, 2018* -
## physics

While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 7.65 m/s. The stone subsequently falls to the ground, which is 11.1 m below the point where the stone leaves your hand. At what speed does the stone

*asked on September 7, 2015* -
## math

A room is 12 feet long and 10.5 feet wide. A scale model of the room is 3.5 feet wide. What is the area of the scale model? 10.3 square feet 14 square feet 36 square feet 122.5 square feet

*asked on July 20, 2015* -
## math

Juan and rachel have the same number of marbles. Rachel gives away 10 marbles and Juan gives away 22 marbles. Rachel then has 3 times as many marbles as Juan. How many marbles did each of them have at first

*asked on November 19, 2014* -
## Math

if 4/3 x 3/4 =5k whats k

*asked on March 28, 2013* -
## physics

A car starts from rest on a curve with a radius of 120m and accelerates at 1.0m/s^2. Through what angle will the car have traveled when the magnitude of its total acceleration is 2.0 m/s^2?

*asked on September 22, 2009* -
## Pre-Calculus

A parabolic satellite television antenna has a diameter of 16 feet and is 2 foot deep. How far is the focus from the vertex? is the answer 8ft?

*asked on August 21, 2019* -
## geometry

Ray BD bisects ∠ABC so that m∠DBC = (x + 6)° and m∠ABD = (2x – 12)°. What is x?

*asked on September 27, 2017* -
## Chem 2

4) Calculate the solubility of calcium hydroxide, Ca(OH)2 (Ksp = 5.5 x 10-5) in grams per liter in: a. Pure water b. 0.10 M CaCl2

*asked on July 29, 2014* -
## Geometry Help!!!

. Katrina lives directly east of the park. The football field is directly south of the park. The library sits on the line formed between Katrina’s home and the football field at the exact point where an altitude to the right triangle formed by her home,

*asked on May 22, 2014* -
## Chemistry

how many grams of aluminum sulfate are produced if 23.33 g Al reacts with 74.44 G CuSO4

*asked on May 21, 2012* -
## Chemistry.

Calculate the mass of CaCO3 that would produce 40 mL at STP. STP means P= 1 atm and T= 0 degrees C. How do I find the mass?

*asked on November 22, 2008* -
## math

Two sides of a triangle measure 25 cm and 35 cm.Which could be the third side.

*asked on June 12, 2017* -
## pre-calculus

A developer wants to build homes on a rectangular plot of land 4 kilometers long and 3 kilometers wide. In this part of the city, regulations require a greenbelt of uniform width along two adjacent sides. The greenbelt must be 10 times the area of the

*asked on October 14, 2011* -
## Chemistry

Mass of evaporating dish = 41.36 g Volume of saturated NaCl solution = 10.0 mL Mass of evaporating dish and NaCl = 44.50 g Mass of sodium hydrogen carbonate = 0.49g What is the morality(M) of the sodium chloride solution if you prepare in 1 liter of

*asked on August 30, 2011* -
## english

help me please!!!!! The manner in which action is presented indicates verb: mood. tense. voice.

*asked on January 11, 2011* -
## cooking

name the seven principle grains?

*asked on November 18, 2009* -
## Math

Write y = -2/3x -4 in standard form using integers. 2x + 3y = -12 2x + 3y = -4 -2x +3y = -12 2x + 3y = 12 I just need to know the steps for the most part, I don't get them.

*asked on December 14, 2018* -
## Social Studies

For their part, native Americans introduced Europeans, Africans, and agent to new foods, customs, and ideas. After 1492, elements of native American ways of life gradually spread around the world. Sadly, disease also spread from the Americans to Europe and

*asked on August 28, 2017* -
## Social Studies Please help

I need the answers to Unit 4 lesson 8 Constituition for the United states. It is a pretest not a test and it is for connections academey.

*asked on December 16, 2016* -
## Physics

A uniform rod of weight 5N and length 1m is pivoted at the 20cm mark from one end. A weight is hung from the other end so that the rod balances horizontally. What is the value of the weight?

*asked on September 29, 2016* -
## grade 12 math

In 2011, the estimated population of Canada was 34 699 000. If the government wants to use an alphabetic string using letters of the alphabet for every person in Canada. How long should the string of letters (repetition allowed) be so that every person in

*asked on January 29, 2016* -
## physics

A cannon is mounted on a tower above a wide, level field. The barrel of the cannon is 20 m above the ground below. A cannonball is fired horizontally with an initial speed of 900 m/s. Assuming air resistance can be neglected, approximately how long will

*asked on September 9, 2015* -
## S.S.

4.What can you infer about what Lewis and Clark saw as they moved west from the Mississippi River. -the land on the east coast was more fertile than the land in the west. -the landscape rose sharply and then flattened as they went farther west. -the

*asked on January 5, 2014* -
## Math

Find the unknown digit to make the sentence true 2.48>2.4__ 1>2.463 5.723

*asked on September 10, 2012* -
## economics

4. Engineers for the Off Road Skateboard Company have determined that a 10% increase in all inputs will cause output to increase by 5%. Assuming that input prices remain constant, you correctly deduce that such a change will cause ________ as output

*asked on May 1, 2012* -
## Calculus (Help please)

A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters

*asked on January 9, 2012* -
## math (Caluclas)

A spherical ballon is leaking air at 2 cubic inches per hour.l How fast is the ballons radisu chancing when the radisu si 3 inches.

*asked on January 9, 2012* -
## dynamath

the value of 2 coins is 35 cents. one of the coins is not a quarter. what are the 2 coins

*asked on June 7, 2010* -
## physics

In the figure below, a constant horizontal force !@#$%^&p of magnitude 18 N is applied to a wheel of mass 12 kg and radius 0.50 m. The wheel rolls smoothly on the horizontal surface, and the acceleration of its center of mass has magnitude 0.50 m/s2. What

*asked on April 7, 2010* -
## algebra

11y+22=33y-11

*asked on May 6, 2008* -
## Chemistry

Calculate the value of Keq for the following equation. Heat + N2(g) + 3H2(g) ↔ 2NH3(g) [N2] = .533M [H2] = 1.600M [NH3] = 0.933M Bob if you're here, can you tell me if adding a substance like "Heat" to the equation changes the whole problem? Or does it

*asked on May 21, 2020* -
## Math-trig

So how do find the arcsec(-3)? secy = x secx = -3 1/cosx = -3 1 = -3cosx -1/3 = cosx Now what angle is this?

*asked on June 20, 2018* -
## Science

Scientists have discovered a new virus that is very different from any known viruses. What type of matter is the virus most likely made of? A)combination of protons and some atoms that have not been discovered so far. B)Combination of protons of differnt

*asked on November 3, 2017* -
## Social studies PLEASE HELP!

1. What was one impact of the Iranian Revolution on the United States? a. Higher oil prices*** b. Increased terrorisim c. Increased taxes d. Increased military spending

*asked on May 18, 2017* -
## Statistics

A physical fitness association is including the mile run in its secondary-school fitness test for boys. The time for this event for boys in secondary school is normally distributed with a mean of 450 seconds and a standard deviation of 40 seconds. If the

*asked on February 21, 2017* -
## chemistry

A sample of 45.1 g of methane gas (CH4(g)) has a volume of 6.20 L at a pressure of 2.90 atm. Calculate the temperature. Another one that I'm stumped on, last question for my practice exam, can you explain how to solve?

*asked on November 4, 2016* -
## chemistry

When the following solutions are mixed together, what precipitate (if any) will forms? Write the reaction equation for all the cases and write the net ionic equation for only those reactions that react: potassium nitrate solution and barium acetate I am

*asked on November 4, 2016* -
## structural grammar

Identify: May I go to the library?

*asked on September 23, 2016* -
## Chemistry

If sulfur dioxide and oxygen can be made into sulfur troxide, what is the reverse reaction? 2SO3-->2SO2+O2*** SO3+O2-->SO5 2SO2+O2-->2SO3 SO3+2SO3-->3S+4O2

*asked on May 4, 2016* -
## Chemistry

At equilibrium, what is the rate of production of reactants compared with the rate of the production of products? much higher higher*** the same lower

*asked on May 4, 2016* -
## Chemistry

A 2.20 g-sample of a compound containing carbon, hydrogen, and oxygen is burned and it produces 4.61 g CO2 and 0.94 g H2O. What is the empirical formula of this compound?

*asked on September 7, 2015* -
## Science

What elements have the highest ionization energy and why?

*asked on August 30, 2015* -
## Chemistry

A compound is found to contain 50.05 % sulfur and 49.95 % oxygen by mass. What is the simplest (empirical) formula for this compound? They said to assume that it is 100 grams. I found the molar mass. S- 32.06 0-16.00 But now I don't know what to do. Please

*asked on August 27, 2015* -
## Java

NEED HELP! I would like to create a class for finding the voltages of 1, 2 or even 4 batteries. The Class can be called BatteryVoltage with a default voltage value of 1.5 (AA Battery) Must allow the user to find the total voltage of batteries when

*asked on October 26, 2014* -
## Physics

A pendulum 1.70m long is released (from rest) at an angle 30 degrees. 1. Determine the speed(m/s) of the 60.0g bob at Theta = 15. 2. Determine the tension in the cord at the lowest point Theta = 0. 3. Determine the tension in the cord at Theta = 15. A

*asked on October 17, 2012* -
## Physics

A copper pipe with an outer radius of 0.011 m runs from an outdoor wall faucet into the interior of a house. The temperature of the faucet is 4.4° C and the temperature of the pipe, at 3.1 m from the faucet, is 24° C. In fourteen minutes, the pipe

*asked on April 26, 2012* -
## geometry

Point A is the incenter of (triangle) PQR. Find each measure. ARU AU QPK

*asked on November 8, 2011* -
## chemistry

a mixture of 3 gases a, b and c is at a total pressure of 6.11 atm the partial pressure of gas a is 1.68 atm, that of gas b is 3.89 atm. what is the partial pressure of gas c?

*asked on May 24, 2010* -
## Math

x(2nd power)+ 2x - 3 ________________________ (Divided by) x (2nd power) + 3x

*asked on September 2, 2009* -
## AP GOVT

what documents in american politics have been influenced by John Locke's philosophies

*asked on August 17, 2009* -
## 3rd grade

Explain how to compare 8,563 and 8699

*asked on September 18, 2008* -
## math

a set of 20 cards is numbered 1,2,3,... ..20. Suppose you pick a card at random without looking. Find the probability of each event. Write as a fraction in simplest form. P(3 or 13)

*asked on March 25, 2008* -
## Math

The standard form of a linear equation is Ax + By=c. If b=0 and A and c are positive which best describes the graph of this equation?

*asked on June 10, 2019* -
## World History

How did Asoka foster peace during his reign? Select all that apply. -He posted his laws in public on stone pillars. -He made everyone observe Buddhist practices. -He fought wars of conquest throughout his rule. He built rest houses and set up hospitals.

*asked on November 28, 2018* -
## Math

Jennifer got a box of chocolates. The box is a right triangular prism shaped box. It is 7 inches long, and the triangular base measures 2 inches x 3 inches x 4 inches. What is the surface area of the box of chocolates?

*asked on February 27, 2018* -
## History

How did magnetic Compass And porcelain effect life in europe? Im really confused help me Please!

*asked on October 10, 2017* -
## Math

Which question is an example of an statistical question? Ask all your friends,"What is your favoriet color?"(my anwser). Ask your teacher,"What college did you attend?" Ask one of your neighbors,"How Manu times do you eat pizza a month?"

*asked on October 7, 2017* -
## algebra

How to solve 5x - 3y equals 0 to determine if x and y show direct variation?

*asked on September 24, 2017* -
## Geometry

Which of the following describes the growth rate of the exponential function in the graph below?

*asked on June 12, 2017* -
## trig

Suppose that θ is an angle in standard position whose terminal side intersects the unit circle at , −15/17,−8/17

*asked on June 4, 2017* -
## Geometry

A mountain bike tire has a diameter of 26 inches. To the nearest foot, how far does the tire travel when it makes 32 revolutions?

*asked on May 16, 2017* -
## Math

Thirty six members of the middle school choir or 30% participated in the regional contest as shown in the model below

*asked on April 28, 2017* -
## College Algebra

A goldsmith has two gold alloys. The first alloy is 30% gold; the second alloy is 80% gold. How many grams of each should be mixed to produce 50 grams of an alloy that is 68% gold? amount of 30% gold ______grams amount of 80% gold ______grams

*asked on April 10, 2017* -
## Math1

Bacteria can multiply at alarming rate when each bacteria splits into two new cells , thus doubling. If we start with only one bacteria which can double every hour , how many bacteria will have by the end of one day?

*asked on March 22, 2017* -
## chemistry

The number of unpaired electrons and the element for [Xe]6s24f145d7: I know the element is Iridium but I cannot figure out the unpaired electrons!

*asked on November 25, 2016* -
## Math

There are two rectangles that are similar. One rectangle has an area of 24 and the other has an area of 15 how do you find the ratio of the area of the first rectangle to the area of the second rectangle?

*asked on September 21, 2016* -
## Math

A 75% alcohol concentration mixture of water and alcohol and was made by mixing 30 ml of pure alcohol with 150 ml of original mixture

*asked on September 9, 2016* -
## Algebra 1

You buy a used car for $20,000. It depreciates at the rate of 21% per year. Find the value of the car for the given years (5 and 8) I'm using the equation v=c(1-r), and i end up getting 6154.11 ; im not sure if i subtract that from 20,000 or if that is my

*asked on July 28, 2016* -
## Chemistry

In an endothermic reaction at equilibrium, what is the effect of raising the temperature? The reaction makes more products the reaction makes more reactants*** the reaction is unchanged the answer cannot be determined

*asked on May 4, 2016* -
## Chemistry

Consider the reaction N2(g)+3H22NH3(g). What is the effect of decreasing the volume on the contained gases The reaction shifts toward the product gas The system reacts by increasing the number of gas molecules*** the pressure on the gases decreases

*asked on May 4, 2016* -
## Chemistry

Will 1 L of 1 M NaCl contain more chloride ions than .5L of 1M MgCl2? Explain.

*asked on April 19, 2016* -
## Science

Which of the following can be accurately said about climax communities? A. Climax communities are always stable. (B. Restoration of the original climax community is always achieved at the same rate.) C. Climax communities are always uniform. D. Restoration

*asked on March 23, 2016* -
## math

given a cylindrical waterbottle that has a volume of 1.25L, find the radius and a height that is 4-6 times the radius

*asked on January 16, 2016* -
## math

Express each radical in exponential form. Simplify using the exponent laws when possible. a) √k^2/3 b √ab^2 c 4√81x^8y^12 d 3√x √x

*asked on December 26, 2015* -
## math

Determine the solution of the following systems of linear equations using elimination. Briefly explain your work. 3x +2y = 19 2x – 3y = -6

*asked on December 22, 2015* -
## physics

Only two forces act on an object (mass=4.41 kg), as in the drawing. Find (a) the magnitude and (b) the direction (relative to the x axis) of the acceleration of the object.

*asked on October 1, 2015* -
## physics

Two forces A and B are applied to an object whose mass is 12.3 kg. The larger force is A . When both forces point due east, the object's acceleration has a magnitude of 0.443 m/s2. However, when A points due east and B points due west, the acceleration is

*asked on October 1, 2015* -
## Math

The radius of a sphere is 3 cm . the radius is increased by a linear scale factor of 5:2 . calculate the surface area of the new sphere

*asked on September 22, 2015* -
## Algebra 2/Statistics

From a squad of 12 cheerleaders, 10 will assemble themselves into a 4-level pyramid at the Homecoming rally. 1.) How many different combinations of cheerleaders can be used to build the pyramid? For this I got 12C10=66......Right or Wrong? 2.) The coach

*asked on April 30, 2015* -
## Algebra 2/statistics

On a fair 6-sided die, each number has an equal probability p of being rolled. when a fair die is rolled n times, the most likely outcome (the mean) is that each number will be rolled NP times, with a standard deviation of sqrt NP(1-P). Brandon rolls a die

*asked on April 30, 2015*