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2012
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Questions Asked on August 1, 2012

A police car traveling at 94.5 km/h is traveling west, chasing a motorist traveling at 77.2 km/h.(a) What is the velocity of the
1. 1 answer
2. asked by John
3. 6,958 views
The standard molar entropy of lead(II) bromide (PbBr2) is 161 J/mol • K. What is the entropy of 2.45 g of PbBr2?a. +1.07 J/K
1. 2 answers
2. asked by MONICA
3. 3,082 views
Which of the following pairs of vectors are orthogonal?(i) v = 18i − 3j and w = −i − 6j (ii) v = 15i − 2j and w = −4i
1. 2 answers
2. asked by Anonymous
3. 2,640 views
What is the entropy change to the surroundings when 1 mol of ice melts in someone’s hand if the hand temperature is 32°C?
1. 2 answers
2. asked by MONICA
3. 2,317 views
Simon's monthly take home pay (after taxes) is 2500.if he pays 21% of his gross pay(before taxes) in taxes. what is the gross
1. 1 answer
2. asked by verkesia
3. 2,167 views
From a lookout tower 80 ft. high, a man observes from a position 6.5 ft. below the top of the tower that the angle of elevation
1. 3 answers
2. asked by Sasuke
3. 2,098 views
A calorie is defined as ¬¬¬¬________.A. A unit of energy supplied by foods with refined sugars B. A unit of measure supplied
1. 4 answers
2. asked by Aya
3. 1,986 views
a differential band brake has a drum of diameter 800mm. the two ends of the band are fixed to the pins on the opposite sides of
1. 1 answer
2. asked by raju
3. 1,958 views
A fin 30 cm long & 10mm diameters throughout is made of steel alloy of thermal conductivity 43 W/m-deg. the fin attached to a
1. 2 answers
2. asked by Guru
3. 1,937 views
The radius of the small circle A is one-half the radius of the large circle B.WHat is the ratio of the area of the small circle
1. 2 answers
2. asked by Grace
3. 1,887 views
If θ represents an angle such that sin2θ = tanθ - cos2θ, then sin θ - cosθ =A. -√2 B. 0 C. 1 D. 2√2 What equation can
1. 3 answers
2. asked by Peter
3. 1,803 views
A population is increasing according to the exponential function defined by y = 2e0.02x, where y is in millions and x is the
1. 1 answer
2. asked by Brad
3. 1,725 views
For the reactionIO3– + 5I– + 6H+ 3I2 + 3H2O the rate of disappearance of I– at a particular time and concentration is 2.8
1. 1 answer
2. asked by Greg
3. 1,714 views
If 1 mol of ice melts at its melting point of 273 K, the entropy change for the ice is 22.0 J/K. If the ice melts in someone’s
1. 2 answers
2. asked by MONICA
3. 1,712 views
a new sidewalk will be 5ft wide 160ft long and 3ins deep.how many cubic yards of concret is needed?
1. 2 answers
2. asked by verkesia
3. 1,616 views
What percentage of college students are attending a college in the state where they grew up? Let p be the proportion of college
1. 3 answers
2. asked by Anonymous
3. 1,456 views
If you assume that there is 5% acetic acid in vinegar, how much vinegar should you weigh out so that the endpoint requires 25.0
1. 2 answers
2. asked by Luke
3. 1,389 views
Given the argument and its Euler diagram, determine the syllogism is valid or invalid.Those who play football. don Football and
1. 1 answer
2. asked by frank
3. 1,357 views
The municipal swimming pool in Nicetown has three different ways of paying for individual open swimming. Evan is trying to
1. 4 answers
2. asked by Morgan
3. 1,308 views
What volume in liters is occupied by 8.22 g of SO2 gas confined at a pressure of 1200.8 torr at 75.0*c?
1. 1 answer
2. asked by liz
3. 1,305 views
Critical, selfish, and rude are opposite traits for which dimension of the Big Five?
1. 2 answers
2. asked by Anonymous
3. 1,289 views
• Assignment 1: Chocolate Delights Candy Company, Part 1Due Week 5 and worth 210 points Chocolate Delights Candy Company
1. 2 answers
2. asked by Moe
3. 1,283 views
1. Which of the following best describes how the graph of f can be obtained from the graph of y = 1/x^2? f(x) = 4/x^2a. vertical
1. 1 answer
2. asked by Kameesha
3. 1,252 views
Summer Swimming SelectionThe municipal swimming pool in Nicetown has three different ways of paying for individual open
1. 2 answers
2. asked by Morgan
3. 1,213 views
True or false(i) Steel is better conductor of heat than bricks. (ii) Radiations are ultrasonic waves. (iii) Black body is having
1. 2 answers
2. asked by siddique
3. 1,186 views
1.an = 3n - 12. an = 2(2n - 3) 3.an = 4^n 4.an = (2/3)^n 5. an = (-1)^n(n + 5) 6. an = (-1)^n + 1(n + 6) 7. an= n+3/2n-1 8. a1 =
1. 1 answer
2. asked by Tony
3. 1,185 views
The entropy of a NaCl crystal is __________a. an intensive property and a state function. b. an intensive property and a path
1. 2 answers
2. asked by MONICA
3. 1,177 views
Need help to identify 10 facts about the reaction that can be read in this equation: 2AgNO3 (aq) + PbBr2 (s) --> 2AgBr (s) +
1. 1 answer
2. asked by Stephanie
3. 1,164 views
A tugboat goes upstream 120 miles in 20 hours. The return trip downstream takes 10 hours. Find the speed of the tugboat without
1. 3 answers
2. asked by Lori
3. 1,163 views
IF A SAMPLE OF GASE HAVE A VOLUME OF 8.20 L AT 25*C AND 2.00 ATM, HOW MUCH VOLUME WILL IT TAKE UP IF YOU DECREASE THE PRESSURE
1. 4 answers
2. asked by liz
3. 1,162 views
A rectangular aluminum plate has an area of 0.41 m2 at 23°C. If it is heated until its area has increased by 4.4 10-6 m2, what
1. 0 answers
2. asked by Sierra
3. 1,133 views
If you combine 34 kg of ice at 0°C with 80 kg of steam at 100°C, what is the final temperature of the system?°C
1. 1 answer
2. asked by Sierra
3. 1,110 views
a spring with a length of 22.0 centimeters hangs from a ceiling. when a 755-gram mass is attached ti the spring, the spring
1. 1 answer
2. asked by Anonymous
3. 1,101 views
Statements P->Q, ~R->(S->T), R v(P v T), and ~R are true. What is the truth value for the statement, (Q v S)?
1. 3 answers
2. asked by Jerry
3. 1,092 views
In a lawn, there is a patch of clover. Every week, the patch doubles in size. If it takes 12 weeks for the patch to cover the
1. 2 answers
2. asked by Anonymous
3. 1,039 views
What percentage interest rate is a loan that charges one hundred dollars in simple annual interest over 5 years on a one
1. 1 answer
2. asked by Anon
3. 1,037 views
Watching Old Faithful erupt, you notice that it takes a time for water to emerge from the base of the geyser and reach its
1. 1 answer
2. asked by Anonymous
3. 1,026 views
Consider the induced nuclear reaction 1H2 + 7N14 ---->6C12 + 2He4. The atomic masses are 1H2 (2.014102 u), 7N14 (14.003074 u),
1. 1 answer
2. asked by Beth
3. 1,006 views
State the principle of impulse and momentum. And clearly difference between impulse and impact
1. 1 answer
2. asked by Rajan
3. 993 views
A 175-pound force and a 230-pound force are acting on the same point in directions that differ by 42°.What is the angle that
1. 1 answer
2. asked by Cyndy
3. 991 views
The half life of a radioactive sample is 6.93 days.after how many days will only one -tenth of the sample be left behind?
1. 1 answer
2. asked by Mira
3. 970 views
A punching machine carries out 5 holes per minute. Each hole of 30 mm dia in 40 mm thick plate requires 10 NM of energy per mm^2
1. 0 answers
2. asked by Dhilsath
3. 952 views
If xΩy is defined as the smallest integer of which both x and y are factors, then 10Ω32 is how much greater than 6Ω20?
1. 4 answers
2. asked by John
3. 943 views
Compute the heat flux thoroughly a 10 cm thick brick wall (k= 0.69 W/m-deg) Which has temperature of 105° C & 10° C maintained
1. 1 answer
2. asked by SIDDIQUE
3. 937 views
the equation n2+3h2 2nh3
1. 1 answer
2. asked by sai ram
3. 932 views
DIRECTIONS:Rewrite without using absolute the absolute value symbol.a. (-5)|3-6|
1. 1 answer
2. asked by alex
3. 931 views
PSY240 Week Three DQ#2On p. 84 of the text, in the Thinking Clearly section, the conduction action potentials and activation of
1. 1 answer
2. asked by Anonymous
3. 916 views
Choose all the answers that apply.It's important to keep your exercise intensity within your target heart rate range so that
1. 1 answer
2. asked by Morgan
3. 907 views
1. A person with a square face shape and a rectangle body shape has what bodyline?A. Straight.(yes) B. Sharp-straight C.
1. 2 answers
2. asked by need to check my answers
3. 901 views
Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use
1. 1 answer
2. asked by Deb
3. 882 views
find the flux of F=<0,y,z> across the parabolic sheet given by x=2y^2+2z^2+3, with x <= 5
1. 1 answer
2. asked by Antonio
3. 791 views
A wheel with radius 25.2 cm rotates with constant angular acceleration 3.75 rad/s2 (radians per second per second). If at t = 0
1. 1 answer
2. asked by Mike
3. 787 views
From a mountain 1780 ft. high, the angle of depression of a point on the nearer shore of a river is 48 degrees 40 minutes and of
1. 2 answers
2. asked by Sasuke
3. 772 views
You drop 378 g of solid ice at −35°C into a bucket of water (1,200 g) at 45°C. Eventually, the ice all melts, and the entire
1. 1 answer
2. asked by Sierra
3. 767 views
A 5.00 liter sample of gas measured at 27.0*C and 1.25 atm presure has a mass of 10.13 g. What is the formula weight of the gas?
1. 1 answer
2. asked by liz
3. 766 views
A volume of 40.0 of aqueous potassium hydroxide was titrated against a standard solution of sulfuric acid h2so4. What was the
1. 1 answer
2. asked by Fai
3. 736 views
During a spontaneous chemical reaction, it is found that äSsys < 0. This means __________a. äSsurr < 0 and its magnitude is <
1. 1 answer
2. asked by MONICA
3. 736 views
To the nearest tenth,what is the circumference of a circle with an area of 49pi?
1. 1 answer
2. asked by Grace
3. 724 views
A committee of architects and firms was formed to plan the Word's Exposition buildings. The collective result was the
1. 0 answers
2. asked by rfvv
3. 718 views
Fill in the blanks:1. A disc is spinning with an angular velocity w rad/sec about the axis of pin. The coupled to the causing
1. 2 answers
2. asked by Dhilsath
3. 718 views
A particular microwave oven operates at 1000W. The wavelength of the microwave is 12.0cm. You decide that you like your snack to
1. 2 answers
2. asked by Rosh
3. 716 views
how do I find the the relationship between Y and X on a input/output table
1. 1 answer
2. asked by celestial
3. 716 views
if you invest 2000 in an acount for 20 years that pays 6% simple intrest.how much money would you have at the end?
1. 1 answer
2. asked by verkesia
3. 713 views
The intensity of sunlight at the the top of the Earth's atmosphere is about 1350 W/m2. (The intensity at the surface of the
1. 2 answers
2. asked by Sierra
3. 712 views
The door of a domestic refrigerates has an area of 1.7 m2 & it basically consists of a thin metal sheet with a 25 mm thick layer
1. 5 answers
2. asked by SIDDIQUE
3. 706 views
1. the contact ratio is.......(a)zero (b)more than one (c)less than one (d)none of these 2. the ratio of maximum displacement of
1. 3 answers
2. asked by raju
3. 699 views
What are the three types of eating disorders discussed in your reading materials?A. Anorexia, bulimia, binge-eating B. Anorexia,
1. 6 answers
2. asked by Aya
3. 693 views
An ice cube of volume 17.7 cm3 is initially at a temperature of -19.3°C. How much heat is required to convert this ice cube
1. 2 answers
2. asked by Sierra
3. 685 views
Why are many fad diets considered unhealthy?A. Because they may not provide all of the nutrients your body needs B. Because they
1. 3 answers
2. asked by Aya
3. 675 views
Calculate the mole fraction of glucose (C6H12O6) in a solution which contains 15g of glucose in 100 g of H2O.
1. 1 answer
2. asked by Greg
3. 673 views
A sled rests at the top of a 25 degree slope that is 80m in length. If uk = .25 and the velocity at the bottom of the incline is
1. 1 answer
2. asked by Willy
3. 670 views
A car of weight W = 12.3 kN makes a turn on a track that is banked at an angle of θ = 20.9°. Inside the car, hanging from a
1. 0 answers
2. asked by ayhan
3. 669 views
A certain mountain has an elevation of 19,583 feet. In 1907, the glacier on this peak covered 10 acres.By 2002, this glacier had
1. 7 answers
2. asked by Lori
3. 665 views
Researchers found that a ________ is more important and is the key to losing weight rather than a popular one.A. Fad diet B.
1. 11 answers
2. asked by Aya
3. 658 views
14. Calculate ƒ´S0 for the formation of 1 mol of HI(g) from its elements given the following information:S0[H2(g)] = 131
1. 1 answer
2. asked by MONICA
3. 657 views
a rectangular pool has a volume of 375 m.The pool is 10 m long and 5m wide, how deep is the pool
1. 2 answers
2. asked by Anonymous
3. 645 views
A snake is sunning itself on a rock.(a) If the snake is 0.5 m long, what is the approximate amount of radiation it absorbs from
1. 0 answers
2. asked by Sierra
3. 632 views
A hill in Colorado makes an angle of 15.0° with the horizontal and has a building at the top. At a point75.0 feet down the hill
1. 1 answer
2. asked by Cyndy
3. 626 views
. For which reaction is ƒ´Ssys ƒ® 0?A) CH4(g) + 2 O2(g) ¡÷ CO2(g) + 2 H2O(l) B) NH3(g) + HCl(g) ¡÷ NH4Cl(s) C) 2
1. 1 answer
2. asked by MONICA
3. 620 views
The National Weight Control Registry found in their research that those who had maintained a significant weight loss reported
1. 3 answers
2. asked by Aya
3. 603 views
find the total number of feet of wood needed if the trellis is 8 feet tall and 2 feet wide.
1. 1 answer
2. asked by cynthia
3. 600 views
A fin 30 cm long & 10mm diameters throughout is made of steel alloy of thermal conductivity 43 W/m-deg. the fin attached to a
1. 0 answers
2. asked by Rafeeq
3. 595 views
How often should children and teenagers be physically active?A. For at least 100 minutes each day or almost everyday B. For no
1. 3 answers
2. asked by Aya
3. 595 views
BMI is used to screen for ________.A. Weight categories that may lead to health problems B. Weight categories that may lead to
1. 7 answers
2. asked by Aya
3. 594 views
A GAS TAKES UP 25.2 L AT 25*C. AT 25*c THE GAS CAN ALSO TAKE UP 12.2lAT 1520 TORR. WHAT WAS THE PRESSURE IN ATM, OF THE ORIGINAL
1. 2 answers
2. asked by liz
3. 590 views
Fill In the Blanks:1.The physical significance of ....... is that it tells us how fast heat is propogated or it diffuses through
1. 6 answers
2. asked by Dhilsath
3. 588 views
Whether the gauge pressure at 500m below sea level will be game as gauge pressure at ground level? Give reason.
1. 1 answer
2. asked by ishwar
3. 581 views
If you’ve decided to lose weight then ________.A. Modest weight loss can lead to little health benefits B. Even modest weight
1. 1 answer
2. asked by Aya
3. 577 views
Social anthropologists attempt to explain the social emergence, evolution and development of the human race. They also try to
1. 0 answers
2. asked by rfvv
3. 565 views
What should you do to uncover the number of calories you are currently eating?A. Estimate the number of calories you eat each
1. 4 answers
2. asked by Aya
3. 565 views
From a lighthouse (270m above the ocean), an observer notices a ship. The lighthouse is setback from the ocean about 60m. To
1. 1 answer
2. asked by Ryan
3. 563 views
Use the exact values you enter in previous answer(s) to make later calculation(s).Energy-efficient windows are constructed with
1. 0 answers
2. asked by Sierra
3. 557 views
An airplane is flying on a heading of 115° with a constant velocity of 675 mph. How far south will ittravel in 2 hours if it
1. 1 answer
2. asked by Cyndy
3. 555 views
Determine which of the following items are inductive generalizations and which are statistical syllogisms. Explain your answer.1
1. 0 answers
2. asked by TIA
3. 553 views
what is the future value of $2,000 in a bank account for 6 years at 4 percent compounded bimonthly
1. 1 answer
2. asked by dean
3. 547 views
How do businesses determine what salvage values to use for their various assets? Are there “hard and fast” rules for salvage
1. 0 answers
2. asked by Kim Copper
3. 544 views
A cable that can withstand 2,250 pounds is used to pull cargo up an inclined ramp. If the inclination ofthe ramp is 21.5°, what
1. 1 answer
2. asked by Anonymous
3. 539 views
1.The physical significance of ....... is that it tells us how fast heat is propogated or it diffuses through a material during
1. 2 answers
2. asked by Devi
3. 537 views
a flywheel has an angular speed of 1200rev/min when its motor is turned off.the wheel attains constant decelerations of
1. 2 answers
2. asked by sanjeev kumar
3. 524 views
What is the value of the focal length fn2of a convergent lens with index of refraction ( n2 =1.5) if it was fn1 =5cm for an
1. 0 answers
2. asked by MM1
3. 524 views

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