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A brick staircase has a total of 16 steps The bottom step requires 112 bricks. Each successive step requires 4 fewer bricks than
1. 2 answers
2. 3,430 views
Find the perimeter of a square to the nearest tenth if the length of its diagonal is 16 millimeters
1. 1 answer
2. 1,272 views
If you do work on an object in 1/3 the usual time, your power output is ____ times the usual power output
1. 1 answer
2. 899 views
The work done on an object with a mass of 50 kg raised 3 meters is ________ Nm.
1. 1 answer
2. 438 views
Two identical gliders slide toward each other on an airtrack. One moves at 1 m/s and the other at 2 m/s. They collide and stick.
1. 0 answers
2. 1,284 views
A 2 kg ball rolls at 2 m/s toward a 1 kg ball at rest. After the balls collide they stick together and move at _____ m/s.
1. 1 answer
2. 573 views
The kinetic energy of a 4 kg object moving at 3 m/s is _______ J.
1. 1 answer
2. 1,658 views
The momentum of a 5 kg thrown 3 m/s is _________ kg m/s.
1. 0 answers
2. 306 views
A 18 N object moves 1 m/s. Its KE is ______ J.
1. 1 answer
2. 329 views
____ N of work are done on your physics text when you carry it horizontally across a 15 meter wide room.
1. 2 answers
2. 425 views
Year 2003 2004 2005 2006Populatation 22.12 22.49 22.86 23.41 A. divide the population for each year by the population in the
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2. 713 views
I. AMBULATORY CARE FACE SHEETAdmit Date: 7/8/20XX @ 20:22 Discharge Date/Time: 7/9/20XX @ 10:10 Sex: M Age: 47 Disposition: Home
1. 0 answers
2. 589 views
I am doing a worksheet for my alg. 2 class and in the worksheet it says:'Simplify the expression. Assusme all variable are
1. 0 answers
2. 459 views
Ok...I know this is a stupid question, but I need help! Ok, here it is:An object that has more electrons than it does protons
1. 1 answer
2. 424 views
I have been working on my Phys homework and came accross this question that is giving me some trouble:The charge (coul) on an
1. 1 answer
2. 500 views
In the movie "Hauting Sarah" what is the twin sister trying to accomplish??? bringing her son back through her sister?
1. 2 answers
2. 461 views
A certain "brand-new" (never-used) 9.0 volt cell contains 40mC of charge. The Electric energy "stored" in the cell amounts to
1. 1 answer
2. 402 views
evaluate and justify each step lim((xe^x)/tan x) as x approaches 1. i just need the over all jest of the problem because i don't
1. 1 answer
2. 406 views
Working with square roots (s.r.) and need help.- s.r. 60/5 This is negative s.r. 60/5
1. 1 answer
2. 312 views
What do you call it when the nurse gives you a shot you hardly feel?s.r. = square root s.r.5 * s.r. 15. my choices are 5s.r.3,
1. 5 answers
2. 3,757 views
If the equilibirium reaction is2 03(g) <--> 3 O2 9(g) is first order with respect to ozone, what type of plot( meaning what is
1. 0 answers
2. 500 views
IF the rate of consumption of N2)4 (below) is .0221, what is the rate of production of NO2?N2O4(g)<->2NO2(g) Please help and
1. 1 answer
2. 436 views
In this problem:Sally told Janice that she made the honor role. __ Pronoun shift in number __ Pronoun shift in person __
1. 1 answer
2. 578 views
If you borrow $5,000 at an APR of 5%. Find the interest, I after 36 months
1. 1 answer
2. 332 views
5% interest rate for 5,000,00 how much after 4 years
1. 1 answer
2. 386 views
I don't understand this at all! Please help!Find the units digit for 7^197 without using a calculator. Explain how you found
1. 2 answers
2. 264 views
Im having trouble solving the amount per day...The table below shows the relationship between d, the number of days a DVD is
1. 7 answers
2. 462 views
A space probe is 7.62 x 10 to the 7th power kilometers from the surface of the planet Mars. If the space probe is traveling
1. 2 answers
2. 382 views
A space probe is 7.62 x 10 to the 7th power kilometers from the surface of the planet Mars. If the space probe is traveling
1. 3 answers
2. 695 views
A certain wave is incident on an interface at an angle of 40 deg. The wave emerges into the other material at an angle of 30
1. 2 answers
2. 466 views
find the unit rate for number of parts manufactured per hour if 1630 parts are made in 6 hours. round to the nearest integer.
1. 2 answers
2. 3,259 views
A plank 2.00 cm thick and 15.0 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board
1. 0 answers
2. 1,154 views
A plank 2.00 cm thick and 15.0 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board
1. 0 answers
2. 662 views
5.Assuming the surface tension of water is .073 N/m, what is the force required to overcome the surface tension?
1. 0 answers
2. 525 views
5.Assuming the surface tension of water is .073 N/m, what is the force required to overcome the surface tension?
1. 0 answers
2. 560 views
5.Assuming the surface tension of water is .073 N/m, what is the force required to overcome the surface tension?
1. 0 answers
2. 519 views
A flat slab of styrofoam, with a density of 32 kg/m^3, floats on a lake. What is the minimum volume the slab must have so that a
1. 3 answers
2. 3,021 views
Use the given data and calculate the enthalpy change for the following:a) B2O3(s)+3COCL2(g)--->2BCL3(g)+3CO2(g) b)Hg(l)
1. 1 answer
2. 750 views
What approximate change in decibles does an observer experience form a sound source if the oberver moves to a new location that
1. 0 answers
2. 398 views
A series of waves traveling at 200 m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a
1. 0 answers
2. 392 views
A 2000 lb box is being held at rest submerged in water. The box is displacing 2500 lbs of water. When the box is released from
1. 0 answers
2. 450 views
A wave that is travelling due west causes particles of the conducting material to ibrate "north/south". This wave is best
1. 0 answers
2. 355 views
You should expect concrete to have an elastic constant that is _____ than wood.a. larger than b. smaller than c. equal to
1. 0 answers
2. 359 views
Calculate the density of F2 gas at 27 degree Celsius and 1.00 atm pressure?
1. 3 answers
2. 2,006 views
How many calories would be needed to convert 8.0g of ice at 0C to steam at 100C?
1. 0 answers
2. 545 views
At 10 degree Celsius a sample of carbon dioxide gas has a volume of 25.5 mL under pressure of 758 mmHg. What would the volume of
1. 1 answer
2. 664 views
Suppose a mixture of hydrogen and oxygen gas is exerting a pressure of 1.60 atm. If the partial pressure of oxygen in the
1. 1 answer
2. 579 views
A rigid container of O2 has a pressure of 3.5 atm at a temperature of 713 K. What temperature would be needed to achieve a
1. 1 answer
2. 1,310 views
2 22 12 132 122 1342? What is next and what is the pattern
1. 10 answers
2. 2,091 views
Calculate the approximate concentration of 41 mL of 6 M diluted to about 0.95 L of water?
1. 1 answer
2. 434 views
What is the concentration of 10g of NaOH dizzolved in 0.95 L of water?
1. 4 answers
2. 462 views
how do you find mole fraction?
1. 1 answer
2. 291 views
Calculate the average kenetic energy of the CH4 molecules in a sample of CH4 gas at 273K and at 546K.So, should I have two
1. 1 answer
2. 794 views
What is the empirical formula for Dichloroethane?
1. 1 answer
2. 732 views
At what temperature (C) will a gas sample occupy 6.1 L if it originally occupies 17.8 L at 27.1C?T1V1=T2V2
1. 1 answer
2. 409 views
How many grams of KCl would be formed in the reaction of 3.000 g of K2CO3 and HCl?
1. 1 answer
2. 914 views
How many milliliters of 6.0 M HCl would be needed if 3.000 g of K2CO3 were used in an experiment?
1. 0 answers
2. 689 views
What is the balanced equation for the reaction of 3.000 g of K2CO3 and HCl?
1. 0 answers
2. 472 views
Calculate the work done when 60.0 g of tin dissolves in excess acid at 1.00 atm and 20°C. Assume ideal gas behavior.
1. 1 answer
2. 812 views
how many moles of ions are released when 1.6 mol of ammonium phosphate is dissolved in water?
1. 1 answer
2. 4,237 views
The figure below shows the speed of a person's body as he does a chin-up. Assume the motion is vertical and the mass of the
1. 3 answers
2. 5,093 views
Three blocks are connected on the table as shown below. The coefficient of kinetic friction between the block of mass m2 and the
1. 4 answers
2. 1,116 views
Shawn is writing down the family recipes in a cookbook. He has 21 recipes left to write down. He has 3 pages left to fill up. If
1. 1 answer
2. 312 views
Assuming 100% of your energy can be converted to electrical power, and electricity costs $0.10 for 1 kilowatt-hour, how high
1. 2 answers
2. 2,765 views
differentiate f(x)=Tan^3(e^2x +1)
1. 1 answer
2. 599 views
A current of 7.50 amperes flows through an air conditioner. If the volyage in the wall outlet is 110 volts, what is the
1. 1 answer
2. 877 views
find the area of the region f(y)=y/(16-y^2)^1/2, g(y)=0, y=3
1. 0 answers
2. 336 views
Why is price stability and full employment important to our economy?
1. 1 answer
2. 422 views
A CD has to rotate under the readout-laser with a constant linear velocity of 1.25 m/s. If the laser is at a position 3.2 cm
1. 9 answers
2. 3,074 views
A point (labelled P in the figure) is attached to the rim of a disk of radius 0.2 m, which can turn around an axis through its
1. 0 answers
2. 516 views
Without the _____ to implement them, the decisions of Congress would have no meaning
1. 1 answer
2. 382 views
How many joules (J) are needed to increase the temperature of15.0g of lead from 20 degrees celsius to 40 degrees celsius?
1. 2 answers
2. 1,303 views
An experiment consists of flipping a coin 3 times and noting the number of times that a heads is flipped. Find the sample space
1. 0 answers
2. 700 views
Add:5 squared(4 squared 2 - 6 squared 25)= thanks
1. 1 answer
2. 395 views
Please help:(y^2+4y/y^2+2y-8)/(y/y+2)
1. 2 answers
2. 309 views
t/6 - t/14= 1/6Is there a solution for this problem?
1. 3 answers
2. 355 views
what are some drafting strategies when writing
1. 1 answer
2. 916 views
Break the problems into workable parts. (In this step, explain how you broke the assignment into smaller more easily tackled
1. 1 answer
2. 561 views
In what ways can nature restore a damaged ecosystem?
1. 1 answer
2. 347 views
You are hosting a party at a restaurant. The restaurant charges $150 to reserve the room plus $25 per person for food and drink.
1. 2 answers
2. 721 views
If a tuning fork puts out a tone at 440 Hz, what is its wavelength in air at 25 degrees?
1. 1 answer
2. 622 views
If a tuning fork puts out a tone at 440 Hz, what is its wavelength in air at 25 degrees?
1. 0 answers
2. 510 views
Light of wavelength 550 nm in air is found to travel at 1.96 x 10^8 m/s in a certain liquid. Determine the index of refraction
1. 0 answers
2. 992 views
Can anyone please show me how to solve (5¡Ì7 ¨C 10¡Ì2)(4¡Ì7 + 8¡Ì2)
1. 0 answers
2. 310 views
1. What is the intensity of a sound at the pain level of 120 dB?2. What is the intensity level of a sound whose intensity is 2.0
1. 1 answer
2. 911 views
A 0.50-kg mass at the end of a spring vibrates 3.0 times per second with an amplitude of 0.15 m. Determine (a) the velocity when
1. 2 answers
2. 4,979 views
Light in air is incident upon a piece of crown glass at an angle of 45.0 degrees. What is the angle of refraction?
1. 1 answer
2. 3,370 views
describe how something is learned using classical conditioning. Be sure to identify the unconditioned stimulus, the conditioned
1. 3 answers
2. 1,056 views
I am having a hard time understanding key points to write my essay on. Can I get some opinions on why it is important to speak
1. 3 answers
2. 469 views
The military conquest of the assyrians were made possible by theirA. powerful navy B. Efficient military organization and
1. 1 answer
2. 622 views
Simplify the following including like terms13rs(squared)-r+42s(squared)+6s(squared)-8rs(squared)-3r
1. 1 answer
2. 554 views
what two steps do u follow to tell if a table is a direct variation/proportion?
1. 0 answers
2. 327 views
Read the following paragraphs and in the space provided below, identify each highlighted word as a direct object, an indirect
1. 1 answer
2. 601 views
You want to swim straight across a river that is 76m wide. You find that you can do this if you swim 28 degrees upstream at a
1. 2 answers
2. 7,307 views
Read the two case studies on pages 233-236 of the text.Answer the following in a 200- to 300-word response: What motivation
1. 1 answer
2. 640 views
True or False.To find a sales tax of 6% on a purchase of $90.00 using the proportion method you would write the following: 6/100
1. 2 answers
2. 462 views
i have a science fair coming up soon and i really want to win but i just cant seem to think of anything cool to do do you have
1. 3 answers
2. 416 views
Under an O2(g) pressure of 1.00 atm , 28.31mL of O2 (g) dissolves in 1.00L H2O at 298K.What will be the molarity of O2 in the
1. 1 answer
2. 918 views
Studying how people get alone with one another?A. has little use outside the work place. B.can improve a persons personal life
1. 1 answer
2. 435 views
How did Wilson get support for his progressive reforms?a.) he acted through a bipartisan coalation of progressives b.) relied on
1. 0 answers
2. 459 views

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