Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Asker
Hi everyone I love Shahid Kapoor, , Robert PAttinson and JOE JONAS, Rupert Grint LIKE CRAZY, Anton Yelchin/ Dan Byrd And here are my next faves: Jesse McCartney, Jason Dolley, ,, Saif Ali Khan, Tusshar Kapoor, Arshad Warsi, Daniel Radcliffe, DRake BELL I'm a Huge FAN
Two parents who are each known to be carriers of an autosomal recessive allele have four children.?
None of the children has the recessive condition.
What is the probability that 3 or more of the children are the carriers of the recessive allele?
1 AnswerBiology7 years agoEvaluate the following limits:?
a) lim x-->3+ √(x^2-9)/(2x-6)
b) lim x-->infinity (x+1)/√(x^2-9)
please help! I'm stuck
1 AnswerMathematics7 years agoa stone is dropped from the top of a tower, 450 meters above the ground. Assuming the acceleration is the gravitational constant equal to?
9.8m/s^2 gravitational constant
Find:
1)the velocity and position for the stone at time "t"
2)The time it takes for the stone to reach the ground
3)The velocity with which the stone strikes the ground
2 AnswersMathematics7 years agoAn electron starting from rest acquires 5.2keV of KE in moving from point A to point B.?
KE of the proton starting from rest at B and moving to point A is 5.2 keV
Determine the ratio of their speeds at the end of their respective trajectories?
(Ve/Vp)
1 AnswerPhysics7 years agoA projectile is fired at an angle, θ, above the horizontal at a velocity, V.?
A projectile is fired at an angle, θ, above the horizontal at a velocity v. Determine the rectangular components for the velocity Vox and Voy in terms of V and θ
please show me how to do this , im stuck
1 AnswerPhysics8 years agoWhat is the tension T2 in the left-hand cable slanted at an angle of θ2 with respect to the wall?
Consider the 619 N weight held by two cables.
The left-hand cable had tension T2 and makes
an angle of θ2 with the ceiling.
The right-hand cable had tension 500 N and
makes an angle of 42◦ with the ceiling.
The right-hand cable makes an angle of 42◦
with the ceiling and has a tension of 500 N
please show me how to do this
1 AnswerPhysics8 years agoA car traveling 31 mi/h accelerates uniformly for 7.3 s covering 574 ft in this time.What was its acceleration?
acceleration? Answer in units of ft/s
What is the final velocity at this time?
Answer in units of ft/s
please show me how to work this out
2 AnswersPhysics8 years agoA car starts from rest and travels for 6.3 s with a uniform acceleration of +2.5 m/s^2 . Speed?
The driver then applies the brakes, causing a
uniform deceleration of 1.9 m/s2
.
If the brakes are applied for 2.8 s, how fast
is the car going at the end of the braking
period?
Answer in units of m/s
How far has it gone from its start?
please show how do to this?
1 AnswerPhysics8 years agoDuring the combustion 296.6 kJ of heat energy is released. What's the molar enthalpy of combustion, H˚?
C2H5OH(l) + 3 O2(g) 2 CO2(g) + 3 H2O(g)
During an experiment 10.00 g of ethanol is completely
burned in air to release CO2(g) and H2O(g)
how do i solve this
1 AnswerChemistry8 years agosample of NaOH was added to water in a calorimeter. Determine the heat released during the solution process.?
Mass of water 100.00 g
Mass of NaOH(s) 10.00 g
Initial Temperature of water 24.0 °C
Final Temperature of solution 48.2 °C
how do i solve this? do i use mcat?
1 AnswerChemistry8 years agoA mixture is prepared by adding 50.0 mL of 0.200 M NaOH to 75.0 mL of 0.100 M NaOH. What is the [OH– ] ?
What is the [OH–] in the mixture?
how do i do this?
2 AnswersChemistry8 years agoCalculate E∘ for each of the following reactions : 2H2O2(aq)→O2(g)+2H2O(l)?
2)5Ag+(aq)+Mn2+(aq)+4H2O(l)→5Ag(s)+MnO−4(aq)+8H+(aq)
please tell me how you did it
1 AnswerChemistry8 years agoWhat is the blood alcohol level in mass percent if 8.39mL of 0.04988 M K2Cr2O7?
Alcohol levels in blood can be determined by a redox titration with potassium dichromate according to the balanced equation C2H5OH(aq)+2Cr2O2−7(aq)+16H^+aq)→2CO2(g)+4Cr3^+aq)+11H2O(l)
What is the blood alcohol level in mass percent if 8.39mL of 0.04988 M K2Cr2O7 is required for titration of a 10.005g sample of blood?
please tell me how to do this
2 AnswersChemistry8 years agoWrite unbalanced reduction & oxidation half-reaction for the following process?
1)Fe2O3(s)+CO(g)→Fe(s)+CO2(g)
2)Mn3+(aq)→MnO2(s)+Mn2+(aq)
please show me how to do this, im lost
1 AnswerChemistry8 years agoWhat is the pH at the equivalence point for the titration of 0.18M solutions of HNO2 and NaOH?
please show me how to do this?
b) Which of the indicators would be suitable for this titration? how do you know?
(Thymol blue, Methyl violet. Phenol red. Thymolphthalein. Methyl red. Bromcresol green. Bromthymol blue. Chlorphenol red. Alizarin yellow. Methyl orange. Phenolphthalein.)
2 AnswersChemistry8 years agoCalculate the initial pH and the pH after the addition of 5.0 mL of 0.230M HCl?
Calculate the pH of 0.315L of a 0.500M NaHSO3 - 0.300M Na2SO3 buffer before and after the addition of the following substances.
please show me how to do this. thank you
2 AnswersChemistry8 years agoHow many grams of dry NH4Cl need to be added to 2.5L of a 0.200M solution of NH3 to prepare a buffer solution?
How many grams of dry NH4Cl need to be added to 2.50L of a 0.200M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.60? Kb for ammonia is 1.8×10−5
please show work?
im confused
1 AnswerChemistry8 years agoCalculate the amount of Cu2+ produced in 1.0 h when aqueous CuBr2 solution was electrolyzed by using a 4.5 A?
please show work, im confused
Chemistry8 years agoelectric current was passed for 3 hours & 2 g of Ag+ was deposited from a AgNO3 solution?
what's the current in amperes?
2 AnswersChemistry8 years ago