KEV
Most popular questions and responses by KEV
physics
An 76 kg construction worker sits down 2.0 m from the end of a 1440 kg steel beam to eat his lunch. The cable supporting the beam is rated at 15,000 N. Should the worker be worried? Determine the tension in the cable. i.imgur. com/Qfhkd. gif I can't figure
asked on October 21, 2012 
physics
The figure below shows the circular wave fronts emitted by two sources. Make a table with rows labeled P, Q, and R and columns labeled r1, r2, Δr, and C/D. Fill in the table for points P, Q and R, giving distances as multiples of λ and indicating, with a
asked on December 9, 2012 
English
whats figurative language? Check this site for a great explanation and examples. http://volweb.utk.edu/school/bedford/harrisms/1poe.htm Thank you for using the Jiskha Homework Help Forum. If you are seeking a definition for "figurative language" it is used
asked on April 13, 2007 
Physics
An object in space is initially stationary relative to the Earth. Then, a force begins acting on the object, starting with a force of 0 N, and increasing at a uniform rate until the magnitude of the force is 56 N after the force has acted for 10 s. The
asked on January 30, 2015 
Physics
A 64.3 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 10.0 kg oxygen tank in a direction away from the shuttle with a speed of 11.9 m/s, propelling the astronaut back to the shuttle. Assuming
asked on January 26, 2015 
Chemistry
the pH of 10.00 mL of 0.100 M HCl after adding 10.00 mL of indicator solution
asked on June 12, 2011 
physics
Which consumes more energy, a 1.5 kW hair dryer used for 10 min or a 10 W night light left on for 19 hr?
asked on November 25, 2012 
math
The volume of a rectangular prism is 2x^3+5x^2+x2. The height of the prism is 2x1, and the length of the prism is x+2. Find the width of the prism.
asked on March 10, 2010 
physics
A 4.55 kg object is released from rest while fully submerged in a liquid. The liquid displaced by the submerged object has a mass of 3.20 kg. How far and in what direction does the object move in 0.200 s, assuming that it moves freely and that the drag
asked on December 1, 2012 
physics
The forces in the figure below are acting on a 2.1 kg object. Find the values of ax and ay, the x and y components of the acceleration. i.imgur. com/nNz9m. png this is one of the last problems on my homework that i just do not understand.. can someone
asked on September 28, 2012 
Physics
Calculate the force required to pull a copper ball of radius 2.00 cm upward through a fluid at the constant speed 6.00 cm/s. Take the drag force to be proportional to the speed, with proportionality constant 0.950 kg/s. Ignore the buoyant force. N
asked on March 1, 2016 
physics
A 2000 kg car is rolling at 2.0 m/s. You would like to stop the car by firing a 12 kg blob of sticky clay at it. How fast should you fire the clay? i keep getting 25.8 but apparently that isn't right so i'm at a loss
asked on November 4, 2012 
physics
When a 2.9 kg object is suspended in water, it "masses" 1.5 kg. What is the density of the object?
asked on December 1, 2012 
Chemistry
How many grams of formic acid, HCOOH, must be added to 0.270L of 0.180M sodium formate, HCOONa, to yield a buffer solution with a pH of 4.20? Assume no volume change. Ka of HCOOH= 5.010^4
asked on April 30, 2012 
organic chem
looking at this h nmr spectra of 4 isomeric alcohols with the formula c5h12o, make a suitable structure for each spectrum and assign h nmr signals for each H in the molecule i.imgur. com/MTHt3. png
asked on September 15, 2012 
Chemistry
What volume of water would be required to dissolve 1 g of BaF2? mass of BaF2 is 1.31 g and it dissolves in 1 L of water. The answer is 0.763. Can someone please explain how they got this?
asked on June 11, 2011 
Math
A shirt is on sale for 25% (1/4) off. Its original price was $12. How much is the shirt now?
asked on November 17, 2010 
limit calc question
2 questions!!! 1. Limit X approaching A (X^1/3a^1/3)/ xa 2. LiMIT x approaching 0 (1/3+x – 1/3) /x On the first, would it help to write the denominator (xa) as the difference of two cubes ((x^1/3 cubed  a^1/3 cubed) second. use LHopitals rule. Take
asked on March 2, 2007 
math
how would I find each sum or difference of (5a2b) + (4a+5b) what do I do with 2b when you line up the +5b?
asked on July 28, 2008 
Math
Q: A metal cube weighs 5/9kg and its volume is 40 5/6cm3. How much does it weigh per 1cm3? 5/9kg to .555kg 40 5/6cm3 to 40.833cm3 .555kg / 40.833cm3 = .0135 A: 1cm3 weighs .0135kg Is this correct? Thank you.
asked on August 2, 2016 
Math
barry puts TVs on a 15foot shelf in his electronics store. He allows 2 1/2 feet of space for each TV. He will be able to put 5.5 TVs on the shelf. Is this reasonable or not
asked on November 2, 2011 
Math
Q: Joe's car can go 9 1/7km with 1 liter of gas. How far can it go with 1 1/8 liters of gas? 9 1/7 to 9.143 1 1/8 to 1.125 1 liter / 9.143 = 0.109 liters per km 1.125 liters / 0.109 liters per km = 10.32km A: Joe's car can go 10.32km on 1 1/8 liters of
asked on August 2, 2016 
physics
A(n) 0.42 kg softball is pitched at a speed of 12 m/s. The batter hits it back directly at the pitcher at a speed of 27 m/s. The bat acts on the ball for 0.016 s. What is the magnitude of the impulse imparted by the bat to the ball? Answer in units of N ·
asked on February 1, 2015 
science
gravitational force decreases with distance. what does this mean for a space traveler who leaves earth in a spaceship?
asked on May 7, 2014 
Physics
An elevator is moving upward 1.17 m/s when it experiences an acceleration of 0.33 m/s2 downward, over a distance of 0.75 m. What will its ﬁnal speed be? Answer in units of m/s
asked on October 1, 2013 
MATH
a parabola passes via the points (1.5,1) and (3,5). given that the vertex lies on the line 7x+3y4=0,find the focus and the equation of the parabola
asked on May 18, 2012 
College Chemistry
A stock solution is prepared by adding 20mL of 0.2M Na3PO4 to enough water to make 80mL. What is the Na+ concentration of 20mL of the stock solution? I am thinking .012: a) .02 times .2 = .004 b).004 times 3 = .012 (for each Na in the molecule) Seems too
asked on March 29, 2012 
Europe
is the european union federation, a confederation or something else?
asked on April 8, 2010 
Math
Q: If 5/6 Liter weighs 9/10 kilograms, how much will 1 Liter of paint weigh? 0.9kg / 5 = 0.18 0.18 * 6 = 1.08 1 Liter of paint will weigh 1.08 kilograms. Is this correct? Thank you.
asked on August 2, 2016 
chemistry
Biosynthesis of proteins from amino acids is an energy driven condensation process (ÄH = + 10 kJ/mol) requiring energy input in the form of ATP. In an experiment, 0.4 mol of amino acids reacted to give a polypeptide and some ATP was consumed. a) explain
asked on April 13, 2014 
CHEMISTRY
How do we determine whether a substance is pure in a chemical formula ?
asked on February 6, 2013

Science
the awnsers are btw 1B 2B 3A 4TRUE
posted on September 20, 2018 
Science
no ur copying is name cause he responded first just like now im copying both ur names
posted on September 20, 2018 
ELA 6th grade
The answers are bcbba
posted on April 4, 2018 
Science
The other *Kev* is copying my name but eany was the answer is A
posted on April 4, 2018 
social studies
contact me on ps3 my gamer tag is frakenbuger
posted on April 3, 2018 
social studies
eany questions contact me
posted on April 3, 2018 
social studies
the answer are A A C D
posted on April 3, 2018 
Science
GLTTTT Is It A ?
posted on March 22, 2017 
statistics
Far above average
posted on February 25, 2017 
Math
Thank you, Reiny. I see your point about decimals vs. fractions.
posted on August 2, 2016 
Math
I appreciate the help, Reiny. I will review about usable fractions.
posted on August 2, 2016 
Math
Thank you, Reiny. I'm wondering with the way you did the problem, where did you get the number 245 from?
posted on August 2, 2016 
Math
Thank you, Ms. Sue.
posted on August 2, 2016 
math
52.2 m
posted on May 17, 2016 
physic
37500 N 166666.6667 LBS
posted on April 24, 2013 
College Algebra
3xy^4sqt.xy
posted on February 6, 2013 
chemistry
use PV=PV Answer 2.73
posted on October 11, 2012 
Calculus
Hi, Kavya! :D LOL
posted on December 9, 2010 
4th grade
65
posted on November 17, 2010 
college
for com/220
posted on August 9, 2009