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What occurred at the battle of Yorktown
1. 1 answer
2. 373 views
Make h the subject of the formula A=πr²tπr√h²+r²
1. 3 answers
2. 984 views
Macario is making 9 pounds of nut mixture with macadamia nuts and almonds. Macadamia nuts cost $8 per pound and almonds cost
1. 1 answer
2. 677 views
Why did Romans try to make their gods happy?A. because they believed the gods would help them convert to Judaism B. because they
1. 5 answers
2. 1,790 views
Which ancient ruler is credited with the invention of democracy?
1. 0 answers
2. 3,597 views
If a sample of oxygen at 20 degree celsius and 740mmHg weighs 16g what volume will it occupy
1. 1 answer
2. 472 views
Plot the three points with first coordinate equal to (-2,8) and join them
1. 2 answers
2. 571 views
What is the best HTML attribute in the world?
1. 1 answer
2. 430 views
I need help with the steps on how to do this following problem:Bert received a commission of $247.50. If he works for 15%
1. 2 answers
2. 597 views
What is the volume of oxygen required at standard temperature pressure to complete the combustion of ethanol of 2.3 grams of
1. 1 answer
2. 534 views
A body is dropped the roof of a building 10 mtr high calculate the time and speed g =10 m/s
1. 1 answer
2. 507 views
What how do you compute the sum of 1/2 + 1/4 + 1/8 + 1/16 + 1/32 +++ 1/2N ?..
1. 1 answer
2. 380 views
What how do you compute the sum of 1/2 + 1/4 + 1/8 + 1/16 + 1/32 +++ 1/2N ?
1. 1 answer
2. 415 views
What is the square root 5900
1. 1 answer
2. 368 views
Insert grouping symbols to make 6+4x0=6
1. 1 answer
2. 569 views
Is there something peculiar about Africa that delayed its drive for independence? (Begin with a specific African country, and
1. 3 answers
2. 1,159 views
1. Our high school would not ________until mid September mid-september mid-September .a. reopen b. re-open c. re open I think
1. 4 answers
2. 4,206 views
mark is making gift bags for his friends. there are stickers in 1/4 of the gift bags. If mark makes 12 gift bags. how many wil
1. 1 answer
2. 776 views
831.Let A = (1,3), B = (6,0), and C = (9,9). Find the size of angle BAC.
1. 1 answer
2. 1,064 views
The graph of x2 −6x+9+y2 +2y+1 = 25 is a circle. Where is the center of the circle? What is the radius of the circle?
1. 1 answer
2. 721 views
Drawn in a circle whose radius is 14 cm, chord AB is 18 cm long. Calculate the angularsize of minor arc AB.
1. 1 answer
2. 622 views
A box of books has a mass of 46kg and is being towed by a rope which is oriented at 15 degree to the horizontal at a point where
1. 2 answers
2. 493 views
How much money will you have if you started with $45 and put it in an account that earned 10% every year for 20 years?
1. 1 answer
2. 461 views
, Two digit whole number between 30 and 80 my tens digit is one more than my ones digit I am a prime number what am I
1. 1 answer
2. 444 views
John wants to make brownies. To make brownies he needs 2/5 of a cup of flour per batch of brownies.if John has 2 cups of flour,
1. 1 answer
2. 571 views
Determine whether the equation defines y as a linear function of x. If so, write it in the formy = mx + b. 6x+√y-7=0 a.
1. 1 answer
2. 985 views
A 70 kg waterslide rider traveling at 15 meters per second hits a ramp with a 58 degree launch angle - How high will they fly?
1. 0 answers
2. 429 views
The bongo family has three children, including a pair of twins. The third child is 3 years younger than the twins. The sum of
1. 1 answer
2. 855 views
a ladder 10m long is leaning against a vertical wall with its other end on the ground. the top end of the ladder is sliding down
1. 2 answers
2. 5,177 views
Two balls of equal mass undergo a collision. Ball one is initially travelling horizontally with a speed of 10 m/s, ball two is
1. 2 answers
2. 4,019 views
How far will a 4ft diameter wheel travel while making 100 revolution?
1. 1 answer
2. 451 views
95 is the product of vidya's savings and 5
1. 1 answer
2. 604 views
“A rifle shot with a velocity of 270m/s at a target that is 400m away.if the shooter wants to directly hit target and what
1. 1 answer
2. 513 views
I have to take the Regents exam, but there are a great number of math regents exams. If I am in 11th grade,which one should I
1. 3 answers
2. 792 views
I am asked to graph a translated parabola,ok, that's pretty easy, but, then,it says that it must be dobe with a dilatation of 2,
1. 1 answer
2. 422 views
I was given the following problem:what is the normality of a solution containing 6 grams of H2SO4 in a 200ml solution? my
1. 2 answers
2. 616 views
Find two consecutive odd integers whose product is 323.Would the two numbers be 17,19 and -17,-19???
1. 2 answers
2. 1,299 views
A baseball is thrown upward. The path of the baseball models the equation h= -4.9t^2 + 9.2t + 1.6, where h is height of the
1. 1 answer
2. 801 views
A ladder is placed against a wall with an angle between the ladder and the ground of 76°. If the ladder must reach 10 m up the
1. 2 answers
2. 826 views
Find the following questions at the depth of 25\text{m}. The gravitational acceleration is g = 9.8\text{m/s}^2 and the density
1. 1 answer
2. 575 views
On a map, two cities are four and one-fourth inches apart. The scale of the map is one-half inch = three miles. What is the
1. 1 answer
2. 569 views
1)Why is it necessary to heat the alum until its mass does not change by more than 2mg?2)Why its it necessary to store the alum
1. 1 answer
2. 931 views
A flatt horizontal road is been designed for 60km/hr speed limit if the maximun acceleration of the car travelling on the road
1. 0 answers
2. 551 views
Jack & Jill went to a well to fetch a bucket of water. The full bucket was 500N. Jack weighed 50kg and Jill weighed 40kg. How
1. 1 answer
2. 548 views
x=natural gasit dropped by 2cent then increased by 25cents then dropped 43cents...how do I set up this equation?
1. 1 answer
2. 366 views
400 exercise books are arranged into 3 piles.The first has 5 more books than the 2nd pile.The number of books in the second pile
1. 3 answers
2. 606 views
3000 Exercise books are arranged into 3 piles.The first pile has 10 more books than the second pile.The Number of books in the
1. 8 answers
2. 3,499 views
Which type of updates should be installed in a test environment before being installed in a live enterprise environment?
1. 1 answer
2. 968 views
A container is initially partitioned by a wall into two compartments. The left compartment has volume V1 and the right
1. 0 answers
2. 527 views
What is the standard deviation for the given data. Round your answer to one more decimal place3,5,6,6,9,1
1. 2 answers
2. 2,231 views
Each morning, the baker gets up early to bake products for the shop to sellthroughout the day. He likes to have 36 boxes of each
1. 3 answers
2. 512 views
Please check to see if I did this correctly. This is a 2 part math problem.1. Janelle has d dimes and n nickles. Her sister has
1. 1 answer
2. 779 views
A rectangle has a perimeter of 20 cm. The length of the rectangle is 1 more than twice the width. What is the measurement of the
1. 2 answers
2. 1,117 views
What is the market price of a 5000.00 bond that matures in 9 years and pays 400.00 interest till maturity compounded semi
1. 0 answers
2. 386 views
The speed of a motorcycle increases from 10.0 km/hr to 50.0 km/hr in 9.0 seconds. What is the acceleration?
1. 3 answers
2. 1,075 views
An aircraft lands with an initial velocity of 85 m/s and decelerates at 9.0 m/s2 until it travels at 4.0 m/s.(a) Calculate the
1. 1 answer
2. 558 views
Create an array to record the results of rolling a 6-sided die. The user determines the number of rolls. Output the results of
1. 0 answers
2. 509 views
Your friend is 1.2 times taller than you. Your friend is 64.5 inches tall. How tall are you?
1. 2 answers
2. 1,963 views
My 10 digit double the one digit I am less than 50 and greater than 40
1. 1 answer
2. 453 views
Need help figuring out what is the largest amount:3000 c 400 pt 250 qt 500 gal
1. 3 answers
2. 421 views
Identify the build up of the Sine-Bar to represent the angle. Identify the angle in degrees, minutes and seconds of the arc.Sine
1. 0 answers
2. 369 views
Unlike the Rescorla Wagner model, Mackintosh's theory of attention states that:A. subjects can learn to pay increased attention
1. 1 answer
2. 844 views
A motorist drives 80km/h at an average speed of 63km/h. Which average is this: mean, mode, median?
1. 4 answers
2. 1,207 views
A centrifuge for separation of sugar crystals in molasses must exert a force of 6 N/g. If the filter drum has a radius of 350
1. 0 answers
2. 609 views
A centrifuge for separation of sugar crystals in molasses must exert a force of 6 N/g. If the filter drum has a radius of 350
1. 0 answers
2. 453 views
What was the goal of the minimum foundation program for education?A. It integrated whites and blacks int he same school system.
1. 3 answers
2. 1,398 views
the length of a rectangle is 7 meters more than twice the width. the perimeter is 68 meters. solve for length and width.I need
1. 3 answers
2. 1,819 views
Given tan θ = -8/5 and sin θ < 0, find sin θ, cos θ, csc θ, sec θ, and cot θ.
1. 1 answer
2. 488 views
How many bonds can each atom make without hybridization? B,N, and O
1. 1 answer
2. 875 views
What side lengths could a rectangle have such that it's area rounds to 20 m squared ( to the nearest 10 )
1. 1 answer
2. 414 views
1) How many seconds does it take a car traveling 40 mph, decelerating at a rate of 7 miles per second, to come to a complete
1. 1 answer
2. 474 views
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.3 x 10^2 um. Find the earthquake's
1. 0 answers
2. 500 views
How to convert 24.63cm to nm^2
1. 1 answer
2. 390 views
Report 2 decimal places and appropriate units, the molar mass of steric acid (C17H35COOH).Please help
1. 2 answers
2. 509 views
How many moles of steric acid are contained in 0.25mL of a hexane solution containing 5.4x10^-4 grams of steric acid/L? (Hint:
1. 1 answer
2. 935 views
Report 2 decimal places and appropriate units, the molar mass of steric acid (C17H35COOH).Thank you
1. 1 answer
2. 501 views
How many moles of steric acid are contained in 0.25mL of a hexane solution containing 5.4x10^-4 grams of steric acid/L? (Hint:
1. 0 answers
2. 703 views
I need help with two problems need helps please!!1) Calculate the surface area in nm^2 of a water solution contained in a watch
1. 0 answers
2. 852 views
Find a scalar equation of the plane that contains the given point P=(-3,-3,1)and the given normal vector n = (-1,4,7)
1. 0 answers
2. 483 views
A gamma ray with 700KeV energy is Compton-Scattered from an electron. Find the energy of the photon scattered at 110 degrees,
1. 0 answers
2. 558 views
If a 6.0keV photon scatters from a fee proton at rest, what is the change in the photon's wavelength if the photon recoils at 90
1. 0 answers
2. 501 views
A television tube operates at 20,000V. What is min wavelength for the continuous x-ray spectrum produced when the electrons hit
1. 0 answers
2. 498 views
The Stanford Linear Accelerator can accelerate electrons to 50GeV (50x10^9eV).What is the minimum wavelength of photon it can
1. 0 answers
2. 442 views
An experimenter finds that no photo-electrons are emitted from tungsten unless the wavelength of light is less than 270nm. Her
1. 0 answers
2. 688 views
What is the threshold frequency for the photoelectric effect on lithium (phi= 2.93eV)? What is the stopping potential if the
1. 0 answers
2. 645 views
An FM radio station of frequency 107.7MHz puts out a signal of 50,000W. How many photons/s are emitted?
1. 0 answers
2. 458 views
White dwarf stars have been observed with a surface temperature as hot as 200,000 o C. What is the wavelength of the maximum
1. 0 answers
2. 546 views
A body's temperature is increased from 900K to 1900K. By what factor does the total power radiated per unit area increase?
1. 0 answers
2. 389 views
A gamma ray with 700KeV energy is Compton-Scattered from an electron. Find the energy of the photon scattered at 110 degrees,
1. 0 answers
2. 581 views
If a 6.0keV photon scatters from a fee proton at rest, what is the change in the photon's wavelength if the photon recoils at 90
1. 0 answers
2. 621 views
A television tube operates at 20,000V. What is min wavelength for the continuous x-ray spectrum produced when the electrons hit
1. 0 answers
2. 496 views
The Stanford Linear Accelerator can accelerate electrons to 50GeV (50x10^9eV).What is the minimum wavelength of photon it can
1. 0 answers
2. 592 views
An experimenter finds that no photoelectrons are emitted from tungsten unless the wavelength of light is less than 270nm. Her
1. 0 answers
2. 770 views
An experimenter finds that no photo-electrons are emitted from tungsten unless the wavelength of light is less than 270nm.
1. 0 answers
2. 466 views
What is the threshold frequency for the photoelectric effect on lithium (phi= 2.93eV)? What is the stopping potential if the
1. 1 answer
2. 759 views
An FM radio station of frequency 107.7MHz puts out a signal of 50,000 W.How many photons/s are emitted?
1. 0 answers
2. 634 views
White dwarf stars have been observed with a surface temperature as hot as 200,000 o C. What is the wavelength of the maximum
1. 0 answers
2. 510 views
A body's temperature is increased from 900K to 1900K. By what factor does the total power radiated per unit area increase?
1. 0 answers
2. 430 views
Calculate the energy needed to accelerate a spaceship of mass 10,000 kg to a speed of 0.3c for intergalactic space exploration.
1. 2 answers
2. 556 views
A 2.00g sample of Fe3O4 is reacted with with 8.00g of O2 to produce Fe2O3.a) What mass of Fe2O3 will be produced? b) What mass
1. 2 answers
2. 662 views

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