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Questions Asked on March 25, 2017

A 30 ohm resistor is connected in parallel with a variable resistance R. The parallel combination is then connected in series
1. 1 answer
2. asked by Oscar
3. 13,760 views
Given H2(g) + (1/2)O2(g) --> H2O, ∆Hº = -286 kJ/mol, determine the standard enthalpy change for the reaction 2H2O(l) -->
1. 1 answer
2. asked by Anon
3. 7,770 views
Given ∆Hºrxn = -1670 kJ/mol for 2Al(s) + (3/2)O2(g) --> Al2O3(s), determine ∆Hº for the reaction 2Al2O3(s) --> 4Al(s) +
1. 1 answer
2. asked by Anon
3. 6,131 views
Which of the following processes is endothermic?a) H2O (g) --> H2O (l) b) 3O2 (g) + 2CH3OH(g) --> 2CO2(g) + 2H2O(g) c) H2O (s)
1. 3 answers
2. asked by Anon
3. 6,042 views
At a playground, a 20-kg child sits on a spinning merry-go-round, as shown from above in (Figure 1) . The merry-go-round
1. 1 answer
2. asked by silvia
3. 3,988 views
The 90 men that visited a restaurant take one of either pounded yam,rice and amala.10 take pounded yam and rice,19 take rice and
1. 17 answers
2. asked by Rilwan
3. 3,865 views
An element has a half-life of 30 years. If 1.0 mg of this element decays over a period of 90 years, how many mg of this element
1. 1 answer
2. asked by Lynette
3. 3,704 views
3:Which incentive is non-monetaryA:flexible work hours B:buying a suit on sale C:getting cash-back rewards for making purchases
1. 6 answers
2. asked by please help!!
3. 2,561 views
A 10 kg mass is hung from 2 light, inextensible strings such that the vertical string is attached to the top of the block at an
1. 1 answer
2. asked by Nisha
3. 2,544 views
Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)
1. 1 answer
2. asked by marie
3. 2,389 views
7. In which of these sentences is the meaning of the word unethical best expressed?A: Sarah felt bad seeing the child cry, so
1. 9 answers
2. asked by Love School
3. 1,768 views
A box with a square base and no top is to be built with a volume of6912 in^3. Find the dimensions of the box that requires the
1. 1 answer
2. asked by Nathaly
3. 1,687 views
A 30 ohm resistor is connected in parallel with a variable resistance R and the parallel combination is then connected in series
1. 1 answer
2. asked by Mycah
3. 1,682 views
Helen deposited $1200 at 5% interest compounded continuously. After 6 years, how much did she have ?I got $2,160 but I was told
1. 1 answer
2. asked by Marryy
3. 1,652 views
fluid of constant density = 960 kg/m3 is flowing steadily through the above tube. The radius at the sections are r1 = 0.05 m, r2
1. 3 answers
2. asked by Maha
3. 1,546 views
There are 9 counters in a bag. There is a number on each counter.1, 1, 2, 2, 2, 3, 3, 3, 3. Joanne adds together the numbers on
1. 1 answer
2. asked by Eleanor
3. 1,513 views
For a cylinder with a surface area of 2020, what is the maximum volume that it can have? Round your answer to the nearest 4
1. 2 answers
2. asked by Nathaly
3. 1,382 views
The spinner is divided into equal parts 1, 3, 4, 2. IF you spin it twice, what is the probability that you get a prime number.
1. 6 answers
2. asked by Galixia
3. 1,306 views
The hcf of 140 and x is 20.The lowest common multiple of 140 and x is 20. What is the value of x? Thank you.
1. 2 answers
2. asked by Eleanor
3. 1,253 views
With the center of a meter stick place on a knife edge balance and a 2N weight hanging on its 100cm mark, where should a 5N
1. 1 answer
2. asked by Auguis, Jenesa
3. 1,230 views
1."If slavery is not wrong, nothing is wrong ... And yet I have never understood that the Presidency conferred upon me an
1. 3 answers
2. asked by Parker
3. 1,089 views
An element has a half-life of 30 years. If 1.0 mg of this element decays over a period of 90 years, how many mg of this element
1. 1 answer
2. asked by Lynette
3. 1,084 views
Show that the bisector of the vertical angle of an isosceles triangle bisect the base at right angles
1. 2 answers
2. asked by Sudarshan
3. 1,061 views
A rocket is fired upward from some initial distance above the ground. Its height in feet, h,above the ground, t seconds
1. 1 answer
2. asked by marie
3. 1,040 views
The enthalpy of combustion of benzoic acid (C6H5CO2H) is –3228 kJ/mol. The burning of 1.698 g of benzoic acid in a calorimeter
1. 1 answer
2. asked by Anon
3. 1,014 views
A fixed amount of oxygen gas is held in a .500 L tank at a pressure of 4.09 atm. The tank is connected to an empty 1.50 L tank
1. 1 answer
2. asked by robert
3. 956 views
When you take your 1700-kg car out for a spin, you go around a corner of radius 55 m with a speed of 20 m/s. The coefficient of
1. 1 answer
2. asked by anonymos
3. 945 views
The 6th and the 13th term of a GP are 24 and 3 by 16 respectively find the sequence
1. 1 answer
2. asked by Usha
3. 923 views
In what proportion should you combine 2:5 soaking solution and distilled water to create 1:20 solution?
1. 1 answer
2. asked by Brianna
3. 917 views
When a mass m=0.50kg is attached to the springs, what is the amount of stretch, x?When a mass m=0.50kg is attached to the
1. 1 answer
2. asked by ani
3. 914 views
three identical point charges each Q coulombs are placed at the vertices of an equilatwral triangle 20cm apart.calculate the
1. 0 answers
2. asked by emmanuel
3. 893 views
Two springs, with force constants k1=175N/m and k2=270N/m, are connected in series, as shown in (Figure 1) .When a mass m=0.50kg
1. 0 answers
2. asked by anonymos
3. 892 views
W:Hello. May I speak to Mr. Johnson?M: Speaking. 1. Who's calling, please? -------------------------- 2. Who's talking, please?
1. 2 answers
2. asked by rfvv
3. 851 views
the Ferris wheel has a diameter of 150m and takes 30min to make a full circle. Determine the speed of ride in m/s
1. 1 answer
2. asked by tatenda
3. 771 views
A ray of light with wavelength 589 nm passes through an unknown material with a velocity of 1.94 x 10^8 m/s. What is the
1. 1 answer
2. asked by George
3. 743 views
When a 8.88 kg mass is placed on top of a vertical spring, the spring compresses 4.54 cm .Part A Find the force constant of the
1. 1 answer
2. asked by ani
3. 731 views
A deposit mature to 24200 after 3yeras at simple interest of7 percent per annum what is the principal amount of deposit
1. 2 answers
2. asked by Shary
3. 694 views
If the thermometer reads 22 c and this corresponds to 19.8mmhg of water pressure , what is the pressure of a pure gas collected
1. 1 answer
2. asked by Flor
3. 663 views
Air trapped in a cylinder fitted with a piston occupies 162.2 mL at 1.08 atm pressure. What is the new volume when the piston is
1. 1 answer
2. asked by Brianna
3. 662 views
Driving in your car with a constant speed of v= 22 m/s, you encounter a bump in the road that has a circular cross-section, as
1. 0 answers
2. asked by ani
3. 621 views
the distance between two towns A and B is 150 kilometers. This distance is represented on a map by a length of 300 millimeters.
1. 1 answer
2. asked by Anonymous
3. 618 views
A gas at 61°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L?whats the answer
1. 1 answer
2. asked by Brianna
3. 611 views
Estimate the sum of a circle with a radius of 27m. Use (22 over 7) for pieA(258 square meters B(1125 square meters C(2291 square
1. 2 answers
2. asked by Jaden
3. 595 views
Discuss the res perit domino rule in a contract of sale.
1. 1 answer
2. asked by Anonymous
3. 583 views
The pressure of a sample of helium in a 3.40 L container is 0.988 atm. What is the new pressure if the sample is placed in a
1. 0 answers
2. asked by ciera
3. 581 views
Ten cars at an intersection are blowing their horns simultaneously, creating a 100 decibel sound in the middle of the
1. 2 answers
2. asked by Jared
3. 577 views
2. Suppose the national debt is $80 trillion and the government spends $800 billion during the fiscal year on goods and
1. 0 answers
2. asked by Tracy
3. 572 views
Air trapped in a cylinder fitted with a piston occupies 163.1 mL at 1.08 atm pressure. What is the new volume when the piston is
1. 1 answer
2. asked by phillip
3. 568 views
A uniform width boardwalk is built around the inside edge of a rectangular parkland that is 30 m by 5 m. If the boardwalk takes
1. 1 answer
2. asked by Taylor
3. 556 views
A car starts from a stopped position at a red light. At the end of 60 seconds, it's speed is 30 meters per second. What is the
1. 1 answer
2. asked by Kallie
3. 556 views
50 meter cloth is purchased for rs 3725 how much cloth is purchased for rs 1788
1. 1 answer
2. asked by sanam
3. 555 views
Suppose the national debt is $80 trillion and the government spends $800 billion during the fiscal year on goods and services.
1. 0 answers
2. asked by Tracy
3. 536 views
A gas at 61°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L?
1. 4 answers
2. asked by Brianna
3. 501 views
The small structures in the cell that carry out the cell's activities are known as?The ____ can be described as the basic unit
1. 0 answers
2. asked by Delisha
3. 497 views
A water main with a radius of 0.15 m contains water with an average velocity of 3 m/s .What is the flow rate in the water main?
1. 0 answers
2. asked by Maha
3. 489 views
I have a general questionFor example we have matrix M1 and mattix M2, 2x2 both I wanna do the product m2m1m1m2m2m1m1m2 Is there
1. 0 answers
2. asked by Stephan
3. 467 views
In one minute, Sasha takes 43 steps. It takes her 301 steps to travel from her house to the shops. If she leaves home at
1. 2 answers
2. asked by sara
3. 457 views
X+6_________ | \ | \ |x-1 \ | \ |____________\ 3x-4 The area of the trapezium is 119cm. What is the value of x? Thank you.
1. 1 answer
2. asked by Joseph
3. 453 views
Find the lengths of each side of this triangle. Show calculations. Short arm=X; Long arm=1/2X+11; Hypotenuse=2X+1.Thanks a lot
1. 1 answer
2. asked by Anneliese
3. 442 views
how do i find the Fnet of 3 planets? the 3 planets are also at angled distance from one another(2d).
1. 1 answer
2. asked by Anthony
3. 440 views
α of gold is 14.3x10^-6/C°. The density of gold is 19.3 g/cm^3 at 20℃. Determine its density at 140℃.
1. 1 answer
2. asked by Alexa
3. 435 views
When asked a question about age 17, Galixia replied "in three years y age will equal to the sum of my birthday year"what year
1. 0 answers
2. asked by Galixia
3. 430 views
X+6_________ | \ | \ |x-1 \ | \ |_____________\ 3x-4 The area of the trapezium is 119cm. What is the value of x? Thank you.
1. 1 answer
2. asked by Joseph
3. 416 views
Following the recent census, State A, with a population of 13.5 million, was allocated 23 representatives. State B,
1. 1 answer
2. asked by Thomas
3. 416 views
If 4 to the x power is 6 then what is the value of 8 to the power of xanswer choice a 8 b 6 time square root of 6 c 9 d 9 times
1. 1 answer
2. asked by Galixia
3. 400 views
How to get 44 using the digits in 2017. You can use +,-,×,÷,√,!,!!,exponents. Double digit numbers are allowed
1. 3 answers
2. asked by Help
3. 398 views
Double the difference of 21 and 8, and then add 6Create the expression using number and symbol
1. 1 answer
2. asked by richemond
3. 382 views
A.B a decimal. IF the average of A and B is the decimal A.B, how much greater is A than B?Answer Choices a. 18 b. 20 c. 24 d. 30
1. 2 answers
2. asked by Galixia
3. 374 views
split level for 200,000 put down 30% assuming rate of 11 1/2% on 30-year mortgage, determine monthly payment.
1. 1 answer
2. asked by Ann
3. 373 views
If x > |y| > y then which of the following is equal to |x+y| - |X| + |y|answer choices a 0 b 2x + 2y c 2x d 2y
1. 1 answer
2. asked by Galixia
3. 368 views
evaluate 54 base 6+ 506base 6giving your answer in base 6
1. 1 answer
2. asked by buhlalu sibonginkosi
3. 327 views
state fist ionization energy of calcium high than pottatium
1. 0 answers
2. asked by Anonymous
3. 312 views
Compound Interest formula solutionP[1+r/100]t?
1. 0 answers
2. asked by Subham
3. 309 views
Who was alvars and nayanars
1. 1 answer
2. asked by Sudarshan
3. 308 views

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