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andrew

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A building has become accidentally contaminated with radioactivity. The longest-lived material in the building is strontium-90.
1. 1 answer
2. 1,678 views
After 1.84 days, the activity of a sample of an unknown type radioactive material has decreased to 85.8% of the initial
1. 1 answer
2. 693 views
3y-12=21
1. 1 answer
2. 284 views
An object is placed 75.0 cm from a screen.(a)Where should a converging lens of focal length 8.0 cm be placed to form an image on
1. 1 answer
2. 2,354 views
Calculate the magnitude and direction of the Coulomb force on each of the three charges connected in series:1st - 6 micro
1. 0 answers
2. 1,161 views
An object is placed 75.0 cm from a screen.a)Where should a converging lens of focal length 8.0 cm be placed to form an image on
1. 0 answers
2. 1,075 views
A wire of initial length L0 and radius r0 has a measured resistance of 2.5 . The wire is drawn under tensile stress to a new
1. 1 answer
2. 2,842 views
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. If a
1. 1 answer
2. 3,256 views
The potential difference between the accelerating plates of a TV set is about 30 kV. If the distance between the plates is 1.1
1. 2 answers
2. 1,069 views
Calculate the magnitude and direction of the Coulomb force on each of the three charges connected in series:1st - 6 micro
1. 1 answer
2. 1,491 views
A potential difference of 102 mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative
1. 1 answer
2. 1,185 views
An electron is accelerated by a constant electric field of magnitude 325 N/C.(a) Find the acceleration of the electron. (m/s^2)
1. 1 answer
2. 1,745 views
A 8.01-nC charge is located 1.95 m from a 4.06-nC point charge.(a) Find the magnitude of the electrostatic force that one charge
1. 1 answer
2. 4,030 views
Two loudspeakers are placed above and below each other and driven by the same source at a frequency of 3.70 102 Hz.An observer
1. 1 answer
2. 1,497 views
Tension is maintained in a string. The observed wave speed is 21 m/s when the suspended mass is 3.0 kg.a) What is the mass per
1. 3 answers
2. 5,446 views
An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable
1. 2 answers
2. 674 views
An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable
1. 2 answers
2. 873 views
An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable
1. 0 answers
2. 814 views
A running man has half the kinetic energy of a boy half his mass. The man speeds up by 1.30 m/s and then has the same kinetic
1. 1 answer
2. 650 views
In the dangerous "sport" of bungee-jumping, a daring student jumps from a balloon with a specially designed elastic cord
1. 1 answer
2. 617 views
write an absolute value inequality describing the minutes of data (w) a full dvd will hold if a typical dvd can store between
1. 1 answer
2. 434 views
A 0.500 ice puck, moving east with a speed of 6.70 , has a head-on collision with a 0.700 puck initially at rest.Assuming a
1. 1 answer
2. 4,558 views
If you were appointed Patient Advocate for a close relative (parent, sibling, spouse, child, etc.) would you be able to carry
1. 2 answers
2. 400 views
of 250 candidates writing a exam, 147 passed in math,150 pass in chemistry and 85 pass subjectsB)calculate the number of
1. 2 answers
2. 916 views
pizza is sold every tuesday. Today is Tuesday. What reasoning can you use to describe what will happen, Inductive or Deductive
1. 1 answer
2. 421 views
3cm triangle,9cm triangle, 27cm triangle, If the pattern continues,and a fourth triangle is drawn,what would be the length of a
1. 2 answers
2. 582 views
A 15 kg box slides across the floor with an initial velocity of +7.6 m/s. It comes to a stop after sliding +14.8 m.How much
1. 0 answers
2. 531 views
in what ways do the senate an house of representatives work together to pass bills into laws?
1. 1 answer
2. 507 views
How do the senate and the house of representatives work together to pass bills into laws?
1. 1 answer
2. 483 views
Jacie is considering a job that offers a monthly starting salary of $3000 and guarantees her a monthly raise of$180 during her
1. 3 answers
2. 3,963 views
Find the derivative of the function y(x)=c^x+x^c. Assume that c is a constant.
1. 2 answers
2. 742 views
Find two numbers the exact answer is between.3 X 567
1. 29 answers
2. 14,774 views
write 20h/24h in its simplest form
1. 2 answers
2. 481 views
What is the projected population over a period of 340 years in a region which begins with three couples?
1. 2 answers
2. 483 views
a dollar bill has an area of 15.86 square inches. If a dollar bill is 2.6 inches long, how wide is it?Also, please explain how
1. 5 answers
2. 491 views
explain the stages in the retail life cycle and the different strategies that a manager can employ inorder to maximise returns
1. 0 answers
2. 496 views
210 210Pb --> Bi + ? 82 83 60 0 Co --> ? + e 27 -1 I need an explanation on how to find the missing product.
1. 1 answer
2. 600 views
1. Consider a projectile, say a frictionless teddy bear, which is thrown at an angle of theta� with an initialvelocity of v0. �
1. 2 answers
2. 567 views
6. A parabaloid with height h and radius r has volume 1/2 �pieR^2H. Consider a parabaloid-shaped watertank with height of 7m and
1. 2 answers
2. 943 views
5. Consider a particle moving counter-clockwise around the ellipsex^9/9 +y^2/4 = 1. Find a relationship between dy/dt and dx/dt
1. 3 answers
2. 514 views
What are the first and third quartiles of the box and whisker plot above?0 15 110 225
1. 1 answer
2. 772 views
the length of a rectangle is 10 inches more than its width. what are the dimensions of the rectangle if its perimeter is 80
1. 1 answer
2. 523 views
All 26 letters of the alphabet are written on cards and shuffled. If one card is pulled out randomly, find the probability.
1. 1 answer
2. 737 views
what equation would you use if you wanted to find the net x-direction force on the boxexample: here is the problem... A box of
1. 1 answer
2. 600 views
which of the following would form acidic,basic or neutral
1. 2 answers
2. 754 views
2. A person exerts a perpendicular force of 75 N on a door. Calculate the torque on the door hinges if the force is applied a
1. 0 answers
2. 599 views
using the unit conversion method derive an equation to calculate heat produced from the HCl-Na OH reaction
1. 1 answer
2. 899 views
What are the two similar features for long shore current and rip currents?
1. 1 answer
2. 261 views
how many grams of oxalic acid dihydrate to completely neutralize 25ml of 0.12 M of sodium hydroxide
1. 1 answer
2. 939 views
(a)block A weigh 60N. the coefficient of static friction between the block and the surface on which it rests is 0.25. the weight
1. 4 answers
2. 846 views
A bicycle wheel that initially spins at 3 revolutions per second is braked uniformly to a stop in 1 second. A spot is painted at
1. 3 answers
2. 1,000 views
x/7+5=10
1. 1 answer
2. 198 views
The left ventricle of the heart accelerates blood from rest to a velocity of +23 cm/s.(a) If the displacement of the blood
1. 0 answers
2. 460 views
A jetliner, traveling northward, is landing with a speed of 65 m/s. Once the jet touches down, it has 785 m of runway in which
1. 0 answers
2. 570 views
I am a number greater than 99 and less than 1,000. Two of my digits that aren't next to each other are the same. My tens digit
1. 2 answers
2. 317 views
Factor the expression: x to the 2nd power+3x+2?
1. 1 answer
2. 426 views
which of the followin is a power of the president???
1. 2 answers
2. 385 views
how do sonnets compare with modern day music and songs? its for a presentation
1. 1 answer
2. 432 views
janice noticed that the number of problems she did for homework (x) formed a linear relationship with her quiz score (y). When
1. 0 answers
2. 879 views
how do you find 3 equivalent fractions for 4/9??
1. 1 answer
2. 209 views
A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of vi = 11 m/s. The cliff is h = 55 m
1. 1 answer
2. 603 views
equations....4 pennies=4pennies;multiply both sides by 7
1. 1 answer
2. 449 views
HOw has the artificial limb improved in efficiency over time since it started being used?
1. 1 answer
2. 374 views
3m = 18
1. 1 answer
2. 245 views
I have two questions. I'm doing a crossword puzzle and this is the question. "sometimes scientist make a mistake or ___and need
1. 3 answers
2. 674 views
skylar wants to join the local gym. the cost in dollars for a membership can be expressed as:100+39.99m where 100 is the
1. 3 answers
2. 850 views
-2/5-7/10
1. 1 answer
2. 254 views
2-(-9)
1. 1 answer
2. 285 views
can you help me to revise this please?The book focuses on nursing through Sue Bauer's life as a patient, grabbing the reader's
1. 2 answers
2. 589 views
n+3=12
1. 7 answers
2. 395 views
How did wheat help the U.S. gain wealth and power in the world?
1. 2 answers
2. 859 views
what is 9*x+6-r+y*p=100
1. 1 answer
2. 324 views
The math problem we need help with is: lbs of can collected by 4 children were as follows: #1 49 #2 72 #3 108 #4 121. the answer
1. 3 answers
2. 532 views
how to convert a fraction to a decimal?3 - 5 1/50
1. 2 answers
2. 429 views
how to convert a fraction to a decimal
1. 1 answer
2. 375 views
500 begins it500 ends it 5 in the middle is seen first of all letters first of all numbers
1. 1 answer
2. 368 views
what causes the buildup of a river delta
1. 1 answer
2. 407 views
Between HF and H2O, which one has the greater intermolecular force?i know they both exhibit hydrogen-bonding, but which one is
1. 4 answers
2. 1,303 views
is superiority an emotion?- The feeling of superiority
1. 3 answers
2. 628 views
Question : Matthew Antony, Grant’s former teacher tells him, “What do you know about life?” He tells him, “ You have to
1. 5 answers
2. 429 views
Can anyone answer any of these questions....? I'm not very associated with the Chicago area..- What site is near or at the
1. 1 answer
2. 624 views
How to convert -1.7 into fractionthanks
1. 1 answer
2. 415 views
negative one and two tenths minus 5 tenths
1. 2 answers
2. 423 views
Can we obtain water from milk, vinegar & ink. What are the steps how to do itThanks
1. 3 answers
2. 483 views
what is difference between blending patterns of inheritance and particulate patterns of inheritance?
1. 1 answer
2. 499 views
what is difference between blending patterns of inheritance and particulate patterns of inheritance?
1. 2 answers
2. 672 views
Assume that the entire mass of an atom is concentrated in its nucleus, a sphere of a radius 1.5 x 10 to the -5 pm. If the mass
1. 3 answers
2. 2,181 views
what is the total pressure of a gas mixture that contains hydrogen at 0.45atm nitrogen at 0.25 atm and argon at 0.60 atm
1. 2 answers
2. 531 views
one difference between identity,zero, commutatiive and associative property
1. 0 answers
2. 404 views
evaulate an intergral for length of curve with y=(sqrt(4-x^2)) and 0 <_ x <_ 2im lost, i think i know how to apply the formula
1. 1 answer
2. 590 views
what exercise is done to strenghten the gastronemuis?is it toe raies?
1. 1 answer
2. 359 views
find each product,5/11x2/7 = or 2/9x4/8=
1. 1 answer
2. 390 views
How do you learn about people who lived long ago?
1. 1 answer
2. 1,063 views
i need about song reponse
1. 1 answer
2. 351 views
how do you write an advertisment about academics, respect,teamwork and leadershipDepends on what kind of ad it is. If it's a
1. 0 answers
2. 494 views
i need the antiderivative of 2x/x^2 thanks.Two x over x squared? Reduce it to 2/x the integral of 1/x is ln x.
1. 0 answers
2. 435 views
i need the antiderivative of sinxcosx dx for intergral pie/2 to 0 thanks.sin(x)cos(x)dx = sin(x)d[sin(x)] = 1/2d[sin^2(x)]
1. 0 answers
2. 489 views
Imagine a LONG bike with a total of 4 wheels - 2 in the front and 2 in the back.For the bike to work at all, at least 1 front
1. 0 answers
2. 548 views
Define physical scienceAndrew: I went to www.dictionary.com and typed in physical science. The following is what it returned.I
1. 5 answers
2. 1,398 views

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