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Questions Asked on August 1, 2012

How much heat is required to raise the temperature of a 4.3-kg block of steel by 48 K? (The specific heat of this steel is 450
1. 1 answer
2. asked by Sierra
3. 467 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. 652 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. 742 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. 704 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. 1,094 views
Your swimming pool is square and 4.9 m on a side. It is 3.9 m deep in the morning. If the temperature changes by 44°C during
1. 0 answers
2. asked by Sierra
3. 456 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. 1,117 views
If a line L with a slope of -2/5 passes through the points (5,0) and (x,-2) then what is the value of x?
1. 1 answer
2. asked by Grace
3. 330 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. 529 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. 679 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. 1,861 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. 601 views
In a circle with radius 20cm, a chord is drawn with length 12 cm.Find the area of the two regions created. Find the perimeter of
1. 2 answers
2. asked by Jennfier
3. 448 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. 1,006 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. 1,684 views
If I have cards numbered 1 through 40 and I randomly draw 3 then replace them, shuffle them and draw three again what are the
1. 1 answer
2. asked by Kyle
3. 410 views
DIRECTIONS:Rewrite without using absolute the absolute value symbol.a. (-5)|3-6|
1. 1 answer
2. asked by alex
3. 913 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. 1,770 views
Which one is a better deal?48 sheets of origami for $2.75 or 55 sheets of origami paper for $3.10
1. 1 answer
2. asked by Brynn
3. 405 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. 744 views
how long does a piece of wire need to measure to get 18" diameter?
1. 1 answer
2. asked by Rita
3. 396 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. 920 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. 657 views
the equation n2+3h2 2nh3
1. 1 answer
2. asked by sai ram
3. 917 views
State the principle of impulse and momentum. And clearly difference between impulse and impact
1. 1 answer
2. asked by Rajan
3. 965 views
Z-12 / 3=4
1. 1 answer
2. asked by Krissy
3. 392 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. 626 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. 596 views
The sides and bottom of a swimming pool are to be lined with vinyl to prevent it from leaking.The pool measures 6m by 4m, and
1. 1 answer
2. asked by Trang
3. 485 views
How many ml of terpin hydrate elixirs containing 33mg/5ml and 5mg/5ml needed to prepare 6 fl oz of an elixir containing 4mg
1. 0 answers
2. asked by Fai
3. 484 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. 699 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. 543 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. 688 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. 574 views
Wheel X with radius 5 makes 5 revolutions along a road, and wheel Y with radius 6 makes 4 revolutions along the same road. What
1. 1 answer
2. asked by Anonymous
3. 399 views
what is the area of a regular hexagon inscribed in a circle with area of 9?
1. 1 answer
2. asked by Sara
3. 377 views
a polygon P is inscribed in a circle C with area of pie. Circle C and polygon P MUST intersect in at least how many points?
1. 1 answer
2. asked by Sara
3. 439 views
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. 6,925 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. 1,057 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. 948 views
Why CuO powder not soluble in hexane and methanol?
1. 0 answers
2. asked by Magi
3. 408 views
Why CuO nanoparticles not dissolved in ammonium hydroxide and water?
1. 1 answer
2. asked by magesh
3. 413 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. 535 views
1. When the cheese is being aging, the bacteria make their way into it.(Is this sentence correct? Would you correct the errors
1. 1 answer
2. asked by rfvv
3. 393 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. 698 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. 490 views
A metal storage tank of external area 0.5 m^2 contains water at 65 degree C. & is located inside a large enclosure with wall at
1. 0 answers
2. asked by Dhilsath
3. 466 views
Explain thermal conductivity & give its variation in case of solid, liquids and gases?
1. 1 answer
2. asked by Dhilsath
3. 462 views
Define Thermal diffusivity law?
1. 0 answers
2. asked by Dhilsath
3. 319 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. 562 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. 925 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. 696 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 fa 2
3. 490 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. 560 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. 644 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. 575 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. 1,906 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. 511 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. 747 views
consider the curved cylinder surface whose center line is the x axis and is between the planes x=0 and x=5.the radius is 4. Find
1. 0 answers
2. asked by Antonio
3. 385 views
convert 7800 into scientific notation
1. 2 answers
2. asked by verkesia
3. 432 views
a dog uses 55lbs of food a day. how many pounds are used in a year?
1. 1 answer
2. asked by verkesia
3. 350 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. 2,143 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. 1,593 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. 1,352 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. 903 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. 673 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. 685 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. 1,161 views
How does the force between two objects change when the mass of one object and distance between the two object are doubled.
1. 1 answer
2. asked by Anupam khatiwara
3. 420 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. 527 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. 699 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. 1,279 views
How would a fall in U.S. interest rates affect Canadian investment, saving, net foreign investment, and the Canadian real
1. 0 answers
2. asked by Anonymous
3. 421 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. 1,924 views
Simplify:2x-9 Divided by 9-2x
1. 3 answers
2. asked by Wanda
3. 439 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. 663 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. 2,064 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. 742 views
My question is that I want a project based on the Human Body.Like a project of Cells ( I have done that) HELP give me ideas
1. 1 answer
2. asked by BlueBerryAqua
3. 450 views
Because of the wind, a boat sails 4 728 meters in the directions S 47 degrees 29 minutes W. How far south has it gone? How far
1. 1 answer
2. asked by Sasuke
3. 364 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. 874 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. 504 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. 1,212 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. 1,162 views
If a 3/8" drill bit is rotating clockwise at 1300 RPM and the bit shatters, at what speed will the projectile be traveling
1. 1 answer
2. asked by Troy
3. 450 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. 1,404 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. 521 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. 879 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. 1,236 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. 960 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. 626 views
Why is having excessive abdominal fat a serious concern?A. Because it places you at a greater risk for developing obesity
1. 6 answers
2. asked by Aya
3. 486 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. 668 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. 572 views
In order to lose weight you have to ________.A. Eat more B. Eat less C. Burn more calories than you consume D. Burn less
1. 1 answer
2. asked by Aya
3. 488 views
How do you lose weight?A. By using up more energy than you take in B. By using up more money on diet programs and pills C. By
1. 2 answers
2. asked by Aya
3. 402 views
How do you lose weight?A. By using up more energy than you take in B. By using up more money on diet programs and pills C. By
1. 1 answer
2. asked by Aya
3. 360 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. 580 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. 557 views

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