# For the reaction H2(g) + I2(g) ↔ 2 HI(g), you have the initial concentrations [H2] = 0.15 and [I2] = 0.05. Keq for the reaction at this temperature is 4.5 x 10-6. Make a reaction table. Include rows for initial

23,060 results, page 93-
## chemistry

Complete and balance the following reactions, where applicable. If no reaction occurs, write N.R. Li + H2O ---> KCI + F2 ---> Au + HNO3 ----> CI2 + NaF ---> Li + Fe(NO3)3 --->

*asked by Danny on November 3, 2014* -
## Chemistry

For the oxidation-reduction reaction equation given here, 2Rb+Br2 --> 2RbBr Indicate how many electrons are transferred in the formation of one formula unit of product.

*asked by Jematormal91 on May 10, 2012* -
## chemistry

Consider the following unbalanced reaction: Fe2O3 (s) + CO (g) --> Fe (s) + CO2 (g) How many moles of carbon dioxide are produced per mole of iron (III) oxide reacted.

*asked by Jack on September 20, 2011* -
## physical chemistry

This question is about a lab called Heats of Ionic Reaction in my Physical Chemistry class. I need to know why there should be a large percentage error in deltaH4

*asked by shelby on March 5, 2013* -
## chemistry

the activity series of metals is: Au < Ag < Cu < Sn < Cd < Zn < Al < Mg < Na < Cs which reaction below occutrs spontaneously upong mixing the reageant shown? a) Sn(s) + Al3+ (aq)-> sn2+(aq) + al(s) b) sn(s) + zn 2+ (aq) -> sn 2+ (aq) +zn (s) c) zn (s) + au

*asked by Dani on October 23, 2011* -
## CHEMISTRY

Method for getting correct answer? Thank you! What is the value of Kc at 226.85 °C for the reaction below if Kp is 6.24e-3 at this temperature? CO(g) + 2H2(g) ↔ CH3OH(g) a. 3.70e-6 b. 2.1614 c. 1.08e5 d. 10.5000

*asked by Chemistry on April 6, 2014* -
## Chemistry

Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Cr2 ] = 0.859 M and [Ni2 ] = 0.0190 M. Standard reduction potentials can be found here.

*asked by Molu on May 8, 2014* -
## chemistry

Balance each of the following redox equations using the half-reaction method. HI(s) + H2SO4 (aq) --> H2S(g) + I2 (s) My only question about this equation is...how do I know how many electrons I need to put on both sides? Other than that I know how to do

*asked by Aria on February 25, 2012* -
## General Chemistry

The value of delta H for the reaction below is -6536 kJ. ____kJ of heat released in the combutsion of 16.0g of C6H6. 2C6H6(l) + 15O2(g) yield 12CO2(g) + 6H2O

*asked by Anonymous on May 1, 2013* -
## Chemistry

Under acidic conditions, MnO4− becomes Mn2+. Write the balanced half-reaction for this transformation. (Omit states-of-matter from your answer.)

*asked by Tsion on April 14, 2014* -
## Chemistry

Please help !!!! In addition to the main product what are two side reactions that could occur in the experiment of The Diels-Alder Reaction of Cyclopentadiene with Maleic Anhydride. Thanks

*asked by Amanda on February 10, 2010* -
## Chemistry 105

Consider the following chemical reaction. 2H2O(l) -->2H2(g)+O2(g) What mass of H2O is required to form 1.6 L of O2 at a temperature of 330 K and a pressure of 0.954 atm?

*asked by JULIE on October 23, 2011* -
## chemistry

If a reaction has a percentage yield of 83.0%, what mass of methane can be obtained from 1150 g of carbon? 2 C(s) + 2 H2O(l) CH4(g) + CO2(g) *Answer in grams*

*asked by Jagoda on February 16, 2015* -
## chemistry

Can aluminum (Al) react with K2SO4 by single replacement to yield products? Using the activity series chart, I know that K is more reactive than Al so does that mean that a reaction will occur or not?

*asked by Ally on April 27, 2015* -
## Chemistry

Write a net ionic equation for the reaction that occurs when aqueous solutions of potassium hydroxide and nitrous acid are combined.

*asked by Megan on October 8, 2012* -
## Chemistry

What mass of precipitate will form if 1.50L of concentrated Pb(ClO3)2 is mixed with 0.200L of 0.280M of NaI? Assume the reaction is complete

*asked by Katherine on April 17, 2013* -
## chimestry

150 ml of 0.4m nitric acid reacts with 100 ml 0.3m mg(oh)2. calculate the ph as poh of the solution after completion of the reaction. 2hno3+mg(oh)2-->mg(no3)2+2h2o

*asked by ileen on March 5, 2015* -
## cHEMISTRY

Strontium metal is responsible for the red color in fireworks. Fireworks manufacturers use strontium carbonate, which can be produced by combining strontium metal, graphite (C), and oxygen gas. The formation of one mole of SrCO3 releases 1.220 x 10^3 kJ of

*asked by Jess on February 1, 2007* -
## Research Writing

1. A blowout, or a flat tire that occurs ____ while you are driving, can be frightening. sudden suddenly -------------------------------------------------------------------------------- 2. Blowouts happen less ____ than they used to. frequently frequent

*asked by Nikia walker on September 23, 2008* -
## Circuits and electronics applications3

We are presented with a familiar first-order circuit: a capacitor driven by a Thevenin source. Now we have a sinusoidal drive that starts at t=0. so the differential equation is RCdv(t)dt+v(t)=vI(t)=Vicos(ωt)u(t) and we are given the initial state

*asked by sengeni on November 25, 2016* -
## Physics

a space-satellite mass of 600kg fires a rocket engine for 2 seconds expelling 40kg of exhaust gases at 350m/s. By how much will the speed of the capsule change? You may consider the initial relative velocities to be zero, but would it matter?

*asked by Sarah on April 27, 2012* -
## Math

find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is negelcted. The gravitational constant is given as G= 6.67428*10^-11 m^3 kg^-1 s^-2 Please give lots of details in

*asked by Gerry on April 27, 2011* -
## Maths and Physics

Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 (10 marks).

*asked by David on April 19, 2011* -
## Physic 101

in suv of which the total mass is 800 kg is travelling with an initial velocity of 200m/s suddenly observe a stationary dog 50m ahead along its path if the driver exerts a break of 2000N,what would happen?

*asked by Emmanuel on February 17, 2018* -
## modeling exponential growth

hey. the directions say identify the initial amount "a" and the growth factor "b" in each exponential function. i've looked at the examples given and i still don't understand. the first problem is g(x)=20x2^x or g(x) equals twenty times two to the "x"

*asked by kiana on March 15, 2011* -
## Math HELP PLEASE

find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is negelcted. The gravitational constant is given as G= 6.67428*10^-11 m^3 kg^-1 s^-2 Please give lots of details in

*asked by Daphine on April 27, 2011* -
## phy

A blue ball is thrown upward with an initial speed of 20.6 m/s, from a height of 0.8 meters above the ground. 2.5 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 8.2 m/s from a height of 23.7 meters above the

*asked by a on September 13, 2011* -
## chem 12

This is my question Into a 500mL container a chemist introduces 2.0 x 10^-2 mol of N2(g) and 2.0 x10^-2 mol of O2(g). The container is heated to 900degrees celcius and the following equilibrium is achieved. N2(g) + 2O2----N2O4(g) calculate the intial

*asked by George on February 3, 2016* -
## Chem

A 2.461-g sample of glutamic acid, C5H9NO4 (147.13 g/mol) was burned in a bomb calorimeter with excess oxygen. The temperature of the calorimeter and the water before combustion was 23.76 °C; after combustion the calorimeter and the water had a

*asked by Anthony on October 28, 2017* -
## chemistry

Limestone rock contains solid calcium carbonate that can react with acid to give products. In one experiment, 1.452 g of limestone rock is pulverised and then treated with 25.00 mL of 1.035 M HCl solution. After the reaction is completed, the resulting

*asked by Anonymous on February 12, 2016* -
## physics

4. Assuming that ball 1 was thrown with an initial velocity of 5 m/s, how far will it land away from the building horizontally? A. 10 M b. 16 M C. 21 M D. 0.63 M 5. A projectile is launched a t 35 m/s at an angle of 33 degrees. Determine (a) the maximum

*asked by Anonymous on October 31, 2015* -
## AP PHSYICS DUE LATE HOMEWORK HELP!!!

4. Assuming that ball 1 was thrown with an initial velocity of 5 m/s, how far will it land away from the building horizontally? A. 10 M b. 16 M C. 21 M D. 0.63 M 5. A projectile is launched a t 35 m/s at an angle of 33 degrees. Determine (a) the maximum

*asked by Anonymous on October 31, 2015* -
## chemistry. Chl my answers please!

(1) To make NaTcO4, Tc metal is dissolved in nitric acid to make HTcO4, NO2 and H2O. Then the product HTcO4 is treated with NaOH to make NaTcO4. If you begin with 4.5 mg of Tc metal, how much of NaOH (in grams) is required to convert all of the HTcO4 into

*asked by Tiffany on December 3, 2008* -
## Chem. Could someone check my answer.

(1) To make NaTcO4, Tc metal is dissolved in nitric acid to make HTcO4, NO2 and H2O. Then the product HTcO4 is treated with NaOH to make NaTcO4. If you begin with 4.5 mg of Tc metal, how much of NaOH (in grams) is required to convert all of the HTcO4 into

*asked by Tiffany on December 3, 2008* -
## physics- answers check

1. For a bar magnet, the magnetic field lines point a. towards the South pole. b. towards the North pole. c. always towards the magnet. d. always away from the magnet. my answer: a 2. Magnetic field lines a. are straight lines. b. are always circles. c.

*asked by Liz on May 10, 2014* -
## Chemistry

Hello! I am having a little difficulty answering these two questions on my homework, I was wondering if anyone could please help me out! Thank you! 1) Consider the following balanced chemical equation for the neutralization reaction of calcium hydroxide

*asked by T.C. on November 30, 2013* -
## Chemistry, #1

At 40 degrees C, the value of Kw is 2.92 x 10^-14. a)Calculate the [H+] and [OH-] in pure water at the same temperature. b)What is the pH of pure water at that temperature? I know how to do this with Kw being 1.0 x 10^-14 at 25 degrees C, but how do I do

*asked by Taasha on August 3, 2007* -
## Chemistry

Constants The following values may be useful when solving this tutorial. Constant Value E∘Cu 0.337 V E∘Fe -0.440 V R 8.314 J⋅mol−1⋅K−1 F 96,485 C/mol T 298 K Part A In the activity, click on the E∘cell and Keq quantities to observe how they

*asked by Jasper on March 28, 2018* -
## Chemistry

home / study / science / chemistry / questions and answers / a subtilisin with an active site mutation of his ... Question: A subtilisin with an active site mutation of His t... EDIT QUESTION A subtilisin with an active site mutation of His to Ala had a

*asked by Anonymous on September 11, 2016* -
## Chemistry

Hello everybody, I'm told that potassium permanganate is dissolved in an aqueous buffer of ammonia and ammonium at equal concentrations (1M), and treated with 1M sodium hypochlorite, the permanganate ion is reduced to insoluble manganese dioxide as the

*asked by John Peterson on July 18, 2007* -
## physics

A 2561-kg van runs into the back of a 823-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road is negligible, calculate the initial speed of the van.

*asked by Anonymous, on December 19, 2012* -
## physics

. A cannon ball is fired horizontally with an initial speed of 75 m/s from the top of a 50-m tall building. When the ball hits the ground, its velocity vector makes an angle θ with the horizontal. What is θ ?

*asked by vector on June 27, 2013* -
## Basic Numeracy and statistics (math)

A rocket is shot into the air with an initial velocity of 800m/sec. The equation h = -16t2+144t models the height of the ball. how long does it take for the rocket to hit the ground (h=0)?

*asked by Maria on April 10, 2017* -
## physics

An apple of mass 0.1kg is thrown from a 123 meter high building at an angle of 45 degrees with an initial velocity of 5. How long does it take for the apple to hit the ground? (assume g = 9.8 m.s-2)

*asked by JJ on August 2, 2011* -
## physics

A newly established colony on the Moon launches a capsule vertically with an initial speed of 1.453 km/s. Ignoring the rotation of the Moon, what is the maximum height reached by the cap

*asked by joy on March 9, 2018* -
## physics

A 2561-kg van runs into the back of a 823-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road is negligible, calculate the initial speed of the van.

*asked by Anonymous, on December 20, 2012* -
## maths

You deposited 25000# in an account that earns 7% interest compounded monthly. A)write the first 6terms of the sequence if the initial deposit is excluded B)find the balance in the account after 5years

*asked by adaeze on January 14, 2018* -
## physics

Unpolarized light is incident on four polarizing sheets with their transmission axes oriented as shown in the figure, in which θ1 = 27.0° and θ2 = 50.0°. What percentage of the initial light intensity is transmitted through this set of polarizers?

*asked by opp on November 5, 2012* -
## physics

A projectile is launched at an angle of 54.6 degrees above the horizontal with an initial speed of 225 m/s and lands at the same level from which it was launched. The range is 205 meters. The time of flight is how many seconds?

*asked by Amy on September 19, 2012* -
## physics

A ski jumper leaves a slope at an angle of 20.0 degrees above the horizontal direction. She lands 3.50 seconds later at a point 20.0 meters below her take-off point. (a) What was her initial speed? (b) How far does she travel horizontally?

*asked by tom on February 8, 2016* -
## physical science

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

*asked by vinny on February 18, 2016* -
## physics

A toy rocket is fired off a platform with an initial speed of 223 ft/sec at an angle of elevation of 32 degrees and achieves a maximum height of 291 ft. How how above the ground was the platform?

*asked by drew on April 7, 2010* -
## Physics

3. A projectile is launched at 10.0 m/s in a direction 45.0 degrees above the horizon. It hits the ground 10.0 m below its initial position. What is its speed just before hitting the ground? Ignore air resistance. The answer is supposed to be 17.2 m/s.

*asked by James on July 28, 2012* -
## Calc

At the time of the birth of a child, a parent wants to begin a college fund that will grow to $50000 by the child's 18th birthday. Interest is compounded continuously at 8.5%. What should the initial investment (P0) be?

*asked by Anonymous on April 18, 2011* -
## Physics

______1. Which of the following is NOT true about a stone dropped from the third floor of the high school building? A. It is a free-falling object. B. It accelerates at the rate of 9.8 m/s2. C. It decelerates at the rate of 9.8 m/s2. D. Its initial

*asked by Joshua on November 29, 2010* -
## physics

A 2561-kg van runs into the back of a 823-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road is negligible, calculate the initial speed of the van.

*asked by Danny on December 18, 2012* -
## Physics

A cannon ball is fired horizontally with an initial speed of 75 m/s from the top of a 50-m tall building. When the ball hits the ground, its velocity vector makes an angle θ with the horizontal. What is θ

*asked by xavier on February 11, 2015* -
## physics, bike

After fixing a flat tire on a bicycle you give the wheel a spin. Its initial angular speed was 6.50 and it rotated 15.2 revolutions before coming to rest.What was its average angular acceleration?

*asked by john on January 13, 2011* -
## Physics

A 2569 kg van runs into the back of a 827 kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road can be negligible, find the initial speed of the van.

*asked by Anonymous on December 2, 2008* -
## physics

A soccer ball leaves the foot of a player with an intitial velocity of 22 m/s at an angle of 30 degrees above the positive x-axis. What is the initial velocity in the y-direction? Two sigfigs Remember...no units...but it would be in m/s

*asked by mark on September 7, 2012* -
## Physics

A box is given a quick push so that it slides along a horizontal floor. a) What is its acceleration if the coefficient of kinetic friction is 0.30? b) How far will it travel if its initial speed was 3.0m/s? Is it possible to find the acceleration when only

*asked by sh on February 2, 2010* -
## physics

A projectile is fired at 33.1° above the horizontal. Any effects due to air resistance are negligible. At the highest point in its trajectory, its speed is 15.5 m/s. Calculate the horizontal component of the initial velocity.

*asked by confused on January 29, 2015* -
## phySICS NEED HELP ASAP

Sally the bug has an initial speed of 20.0cm/s. She then accelerates at 8.00cm/s^2 for 5.00s. calculate sallys total displacement? which i did and got 200 cm Displacement during the 5th second? can you please help and show all work

*asked by sarah on January 7, 2015* -
## Physics

A 2563-kg van runs into the back of a 826-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road is negligible, calculate the initial speed of the van.

*asked by Caleb on January 16, 2013* -
## Math

Use the digits of your birthday as the amount of your initial investment (i.e., 6/25 is $625), calculate the value of this investment after 10 years at 3.5% APR for interest compounded yearly, quarterly, monthly, and daily. What do you notice?

*asked by Otrava on July 18, 2017* -
## Physics

You shoot a rocket straight into the air from the ground.It takes 8.0 seconds to come back down to the ground.What was its initial velocity ? Vf^2=Vi^2+2ax 0=vi^2+2(-9.8)(8.0)

*asked by Anonymous on December 7, 2012* -
## Calculus - Second Order Differential Equations

Solve the boundary-value problem. y''+5y'-6y=0, y(0)=0, y(2)=1 r^2+5r-6=0, r1=1, r2=-6 y=c1*e^x + c2*e^-6x y(x)=c1*e^x+c2*e^-6x y'(x)=c1*e^x-6*c2*e^-6x y(0)=c1+c2=0, c1=-c2 y(2)=c1*e^2+c2*e^(-12)=1 -c2*e^2-6c2*e^(-12)=1 -c2(e^2-6*e^-12)=1

*asked by COFFEE on July 10, 2007* -
## Integral Calculus

A typical flea jumps vertically w/an initial velocity of about 5ft/s. How much does the flea jump? Ans. 65/64ft or 4.7in.. pls show the solution and explain.. thanks a lot.. :)

*asked by Akitsuke on September 21, 2008* -
## physics

A body is thrown vertically upwards at an initial velocity of 30m/s. Find the velocity after 2s and the time it takes to reach the maximum height.(TAKE g equal 10m/s2(square).

*asked by josephafful on May 25, 2016* -
## physics

A man skis down from the top of a hill 1500.0 m high, starting from rest. If he loses 50% of his initial mechanical energy to friction during his descent, what is his speed in m/s at the base of the hill?

*asked by fun on November 5, 2014* -
## pre calc

A coin is tossed upward from a balcolny 370 ft high with an initial velocity of 16 ft/sec. during what interval of time? will the coin be at a height of atleast 50 ft (h= -16t^2 +vot + h0) is the answer 0>= t

*asked by wally on October 23, 2014* -
## physics

A soccer ball leaves the foot of a player with an intitial velocity of 22 m/s at an angle of 30 degrees above the positive x-axis. What is the initial velocity in the x-direction? Two sigfigs Remember...no units...but it would be in m/s

*asked by mark on September 7, 2012* -
## physics

a boy throws a stone straight upward with an initial speed of 15 m/s on the surface of the earth. what maximum height above the starting point will the stone reach before falling back down?

*asked by Anonymous on September 8, 2012* -
## physics

A ball is projected horizontally from the top of a 98m high cliff with an initial speed of 14.4 m/s. Determine the magnitude of the final speed the instant prior to hitting the ground

*asked by tenzin on May 16, 2014* -
## Grammar

The patient was admitted to the floor for abdominal pain and diarrhea, initial diagnosis was a possible small-bowel obstruction. A) complete sentence B) fragment C) run-on Seems like C would be the best answer as a run-on

*asked by Marie on October 9, 2012* -
## counseling

During the initial session, counselors should be sure to assess clients for each of the following problems except for a. if there is an actual plan. b. the availability of the method and the degree to which the method is lethal. c. past, present, and

*asked by cudy on July 24, 2016* -
## Physics for life scince

II.You are standing on the edge of a 50m high cliff and throw a ball vertically up with initial speed of 20m/s: 1.After how long will the ball hit the ground below? 2.Draw the v vs.t graph

*asked by Simeon on March 23, 2010* -
## physics

Sally the bug has an initial speed of 20.0cm/s. She then accelerates at 8.00cm/s^2 for 5.00s. calculate sallys total displacement? which i did and got 200 cm Displacement during the 5th second? can you please help and show all work

*asked by Georgy on January 6, 2015* -
## physics-pls help

The ball is thrown froma height of 10 meters with an initial upward velocity of 3.0m/s. How long does it take to land on the ground? What is its maximum height? i know the formula is d=v1t+1/2at^2 but i do not know what else to do. pls help

*asked by ted 2 on November 7, 2011* -
## algebra

A rocket is launched from atop a 105ft cliff with initial velocity of 156 ft/s Height above ground a time t is given -16t^2 + 156t + 105 = h. When will it hit the ground after launch?

*asked by V on January 27, 2017* -
## Physics

A 65.0 kg skier with an initial speed of 11.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top, given that the coefficient of friction between her skis and the snow is 0.0800.

*asked by Andrew on February 22, 2015* -
## Chemistry

The decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI with a rate constant of 1.20E-4 Ms-1. If the initial concentration of HI is 0.575 M, the concentration of HI will be 0.116 M after seconds have

*asked by kait on March 22, 2014* -
## kenson r

550 g of water (cw = 4186 J/kg.K) at 75°C is poured into an 855 g aluminum (cw =900 J/kg.K) container with an initial temperature of 11°C. What is the final temperature of the system, assuming no heat is exchanged with the surroundings?

*asked by kenson on May 10, 2017* -
## physics

A parachutist jumps out of airplane with an initial speed of 2.0 m/s downwards. There is a force of air resistance equivalent to 305 N. Determine the parachutist’s mass if it takes a total of 3 seconds for him to travel 30 m downwards.

*asked by hanzala on November 13, 2013* -
## physics

Calculate the distance traveled by the concrete brick after 0.5 s if it moves with an initial speed of 5 ft/s up the incline whose angle of inclination with the horizontal is 300. Given, coefficient of friction of the incline is 0.144 and g = 32 ft/s2

*asked by ajay on April 6, 2012* -
## America Governmetn

historian Henry Adams argues that declining quality of president since Washington disproves the theory of evolution. If the initial president were wrong, why did congress dominate even at that time?

*asked by ee on November 22, 2008* -
## physics

A student throws two beanbags in the air, one straight up and the other one at a 30° angle from the vertical. Both beanbags are thrown with the same initial velocity and from the same height. In your own words, explain which one will come back and hit the

*asked by ella on March 11, 2013* -
## physics

I'm very confused. What is the range of an arrow shot horizontally at 85.3 m/s if it is initially 1.5m above the ground? I'm guessing 1.5 is delta Y and initial velocity at 85.3 m/s and final velocity at 0 m/s. I just don't understand how I'm supposed to

*asked by yeh on September 16, 2008* -
## physics

A 1.85 m tall basketball player attempts a goal 9.3 m from a basket (3.05 m high). If he shoots the ball at a 45° angle, at what initial speed must he throw the basketball so that it goes through the hoop without striking the backboard?

*asked by John Miller on March 14, 2013* -
## Physics

A stone is thrown from ground level at 72 m/s. Its speed when it reaches its highest point is 46 m/s. Find the angle, above the horizontal, of the stone's initial velocity. Answer in units of degree

*asked by Jordan on October 6, 2015* -
## Chemistry

The decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI with a rate constant of 1.20E-4 Ms-1. If the initial concentration of HI is 0.575 M, the concentration of HI will be 0.116 M after how many

*asked by kait on March 22, 2014* -
## Math

Use the digits of your birthday as the amount of your initial investment (i.e., 6/25 is $625), calculate the value of this investment after 10 years at 3.5% APR for interest compounded yearly, quarterly, monthly, and daily. What do you notice?

*asked by Abe on October 24, 2016* -
## Math/Physics

Take the acceleration due to gravity as g= 9.81ms-2 A red ball is thrown straight up from the edge of the roof of a building. A green ball is dropped from the same point (t = 1.80s) seconds later. (a) If the height of the building is (h = 74) m, what is

*asked by James on October 1, 2018* -
## Physics

A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y

*asked by Michelle on February 17, 2014* -
## Physics

A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y

*asked by Michelle on February 20, 2014* -
## AP Physics

Hi! Thank you very much-- I know this is a 2dimensional inelastic collision but i'm not sure how to solve-- "The mass of a blue block is 20% greater than the mass of the green block. Before colliding, the blocks approach each ther with momenta of equal

*asked by APpreciative student on November 21, 2010* -
## Physics

A dragster starts from rest and accelerates down the track. Each tire has a radius of 0.360 m and rolls without slipping. At a distance of 360 m, the angular speed of the wheels is 292 rad/s.

*asked by Oliver on April 5, 2008* -
## math

You are a lab technician and must create 250 ml of a 17% salt-solution. a. If you have 500 ml of 28% salt-solution, how many milliliters of it should you mix with water in order to create 250 ml of a 17% salt-solution? b. If you have 400 ml of 40%

*asked by Fatih on February 15, 2012* -
## Calc

You are a lab technician and must create 250 ml of a 17% salt-solution. a. If you have 500 ml of 28% salt-solution, how many milliliters of it should you mix with water in order to create 250 ml of a 17% salt-solution? b. If you have 400 ml of 40%

*asked by Fatih on February 16, 2012* -
## Calculus

Use Newton's method to approximate a root of the equation (2 x^3 + 4 x + 4 =0) as follows. Let (x_1 = -1\) be the initial approximation. The second approximation (x_2) is ? and the third approximation (x_3) is ?

*asked by Salman on November 11, 2009*