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an aeroplane has a mass of 15 tonnes. At cruising speed,air flows over the top of it's wing at 150 m/s and under the wing at
1. 0 answers
2. 566 views
An object is sliding along a flat surface with an initial speed of 30 m/s. What must thecoefficient of kinetic friction be
1. 0 answers
2. 564 views
One-third cup of vanilla ice cream provides about 145 kcal of energy. A typical adult uses about 195 kcal/hr of energy while
1. 1 answer
2. 852 views
The formula I = PRT where I = Interest, P = principal, R = rate, and T = time is used to calculate the amount of simple interest
1. 3 answers
2. 7,832 views
In what way was the government of ancient Athens different from that of the United States?A. Athens was direct democracy in
1. 8 answers
2. 5,577 views
You are buying 4 tickets for a football game on stub hub for tickets are $60 each you have to pay a handling fee of $5 per
1. 3 answers
2. 592 views
Jay can jump rope at a rate of 8 jumps for every 10 seconds . Find the rate
1. 1 answer
2. 478 views
0.5 of peters money is 3.50 how much money has he altogether
1. 1 answer
2. 437 views
If one person can do a job in 60 minutes and another per can do it in 90 minutes, how long will it take them, working together,
1. 1 answer
2. 463 views
You are testing a car on the Nevada salt flats traveling 85 m/s. Your parachute deploys and you decelerate at 13 m/s^2. How long
1. 1 answer
2. 460 views
Tony owns a personal training business. He makes a total of $500 for every 3 clients he acquires. If Tony is saving to purchase
1. 2 answers
2. 309 views
Hemlocks are a common type of tree in the northern forests of the United States. In studying one forest, a forester noticed that
1. 0 answers
2. 589 views
Which equation represents the situation?The sum of three consecutive integers is 36. x+(x+3)+(x+3)=36 x+(x+1)+(x+2)=36
1. 1 answer
2. 527 views
Every 1 1/2 on a wilderness map represents 1 mile. If the actual distance between two likes is 10 miles how far apart are the
1. 1 answer
2. 711 views
A sample of beer is 4.6% by Mass C2H5OH. The density of beer is 0.93 g/mL. What is the molar concentration of C2H5OH in this
1. 3 answers
2. 449 views
3fg(,f^2+5f-4)=
1. 1 answer
2. 334 views
What is osmolarity of a 0.20M MgSO4 solution, which is 50% dissociated?
1. 1 answer
2. 563 views
A Gentoo penguin can swim at a rate of 17 mph. How many miles can a penguin swim in four hours? Use the expression RT, where R
1. 1 answer
2. 516 views
Create a piecewise function of the following scenario where D(t) is the total distance walked in miles as a function of time T
1. 1 answer
2. 563 views
What is the area of a pentagon with sides of equal length, measuring 5v+3?
1. 1 answer
2. 479 views
How do jobs today differ from the Jeffersonian era (agriculture, crafts, shipping)? Does it make a difference in the way
1. 1 answer
2. 446 views
A man feels anxious and a little sick to his stomach when he walked up to the front door of his old elementary school. School
1. 0 answers
2. 436 views
with what minimum speed must a ball be thrown straight up in order to reach a height of 34 meters above the launch position?
1. 1 answer
2. 1,359 views
My granddaughter has to do a project about a product she would create and test we've decided on the safetyof white paper napkins
1. 1 answer
2. 383 views
The coordinate of a boy running across a parking lot as a function of time is gives as :x�0†3=3t*2 7.2t 28 and
1. 1 answer
2. 448 views
State if each number is Rational,Irrational,or not a real number?1.)square root of 9/16 2.) square root of -9 3.)square root of
1. 1 answer
2. 948 views
Perimeter of pool is 84ft squared.The removal charge for tile is $20 per linear foot. Each new 6-inch square tile costs $2. A
1. 0 answers
2. 450 views
- One cubic foot is approximately 7.5 gallons of water- A typical garden hose releases approximately 11 gallons of water per
1. 2 answers
2. 659 views
A square has an area of 49 square units. Find the sode length and perimeter of the square.
1. 2 answers
2. 1,997 views
10x^2=2^xHi! How do I go about solving an equation like this? It's meant to be a calculator solution but I'd love to know how
1. 3 answers
2. 532 views
The degree measure of the vertex angle is (3x-8). The degree measure for each base angle is (6x-41). What is the value of vertex
1. 4 answers
2. 2,081 views
Solve.1.) 7/33y = -56/3 2.) 8/11k = 29/44
1. 2 answers
2. 466 views
A rocket has put your spacecraft in a circular orbit around Earth at an altitude of 350 km. Calculate the force due to
1. 1 answer
2. 656 views
How many moles of iron(iii) chloride could be made with an unlimited supply of iron atoms but only 1.81 X 10e23 chlorine atoms?
1. 1 answer
2. 622 views
Multi-Step The heights of the starting players for the Davis High School boy's basketball team are 78 1/2 in., 74 in., 71 5/8
1. 3 answers
2. 691 views
You have a 0.5 M HEPES pH 7, and a 0.5 M HEPES pH 8 solution. How much of each stock solution do you need to make 125mL of a 50
1. 0 answers
2. 456 views
A star is estimated to have a mass of 4.4x1026lbs. It has a diameter of 8.69x105 mi. Calculate the density in g/cm3.
1. 1 answer
2. 354 views
A ladder base is 3 m away from a house, and the fully extended ladder is 5 m long when it leans against the house. How high does
1. 2 answers
2. 698 views
Taylor is purchasing a home for $235,000. She is putting 20% down. She has qualified for a 30 year mortgage at 4.5% APR.
1. 1 answer
2. 488 views
when titrating 50 mL of .10M H2SO45 with .10 M NaOH, how many mL of NaOH will you have added to reach first equivalence point?
1. 1 answer
2. 578 views
A 25.00 mL sample of HCl was titrated with 35.79 mL of 0.250 M KOH. The concentration of the HCl solution is:
1. 2 answers
2. 1,595 views
Sue deposited $3000 in a savings account earning 2% interest over 8 years, what was the total interest Sue earned?
1. 2 answers
2. 470 views
A spaceship in deep space has a velocity of 4000 km/s and an acceleration in the forward direction of 6 m/s2. What is the
1. 2 answers
2. 1,075 views
A description of how client feedback can be applied following an intervention
1. 1 answer
2. 428 views
Sam pushes crates starting form rest across the floor of his classroom for 3 s with a net force as shown above. For each crate,
1. 2 answers
2. 4,527 views
Show the equation that 100g of 100C steam will completely melt 800g of 0C ice.
1. 0 answers
2. 806 views
A penny on its side moving at speed v slides off the horizontal surface of a table a vertical distance y from the floor.a) Show
1. 1 answer
2. 1,925 views
Estimate then record the product$53 times 4
1. 7 answers
2. 710 views
nathan wants to go to a hockey game with friends. Tickets are $18, but students can get discounted tickets for $12. They want to
1. 1 answer
2. 877 views
A Super-Duper ball bounces twice its height when it is dropped. Carl dropped a Super-Duper ball from the roof of a 12-foot
1. 2 answers
2. 388 views
What is one difference between the credentials of jerrilyn Jacobs and zlata filipovic?Jerrilyn jacobs is younger Jerrilyn jacobs
1. 2 answers
2. 521 views
what is the slope of any line parallel to the graph of 6x+5y=9
1. 1 answer
2. 678 views
Which evidence from the sea floor shows that tectonic plates move?A) the sea floor is youngest near a mid ridge and farther
1. 14 answers
2. 4,178 views
When aqueous solutions of potassium carbonate and magnesium nitrate are combined, solid magnesium carbonate and a solution of
1. 1 answer
2. 4,787 views
Write the net ionic equation for the following molecular equation. HBr is a strong electrolyte. HClO is a weak electrolyte.KClO(
1. 1 answer
2. 2,954 views
Predict the prdeucts of the following acid/base and precipitation reactions and balance the equations.Remeber to indicate (s),
1. 1 answer
2. 599 views
write the net ionic equation for the following molecular equation.2Crl(aq)+3NaCO3(aq) ---> Cr2(CO3)3(s) + 6NaI(aq)
1. 1 answer
2. 464 views
what is the net ionic equation for the following molecular equation. HNO3 is strong electrolyte and CH3COOH is weak electrolyte.
1. 0 answers
2. 673 views
net ionic equation for the following molecular equation. HNO3 is strong electrolyte and CH3COOH is weak electrolyte.
1. 15 answers
2. 3,541 views
net ionic equation for the following molecular equation. HNO3 is strong electrolyte and CH3COOH is weak electrolyte.
1. 0 answers
2. 827 views
Suppose that you are in a class of 31 students and it is assumed that approximately 10% of the population is left-handed. (Give
1. 0 answers
2. 800 views
Solve the system by substitution.x + 3y = -4 2x + 2y = -8
1. 2 answers
2. 502 views
Miriam is four years older than Ricardo. 10 years ago she was 3 times as old as Ricardo was then.A) How old are they now B)
1. 1 answer
2. 712 views
Optically pure 2-octyl sulfonate, a compound with a leaving group comparable to the tosylate and mesylate groups discussed in
1. 1 answer
2. 631 views
Harrison Inc. has issued a zero/ coupon bond with par value of $1000. The bond pays no coupons until the end of the 6th year, at
1. 0 answers
2. 528 views
Suppose Preun Inc. issues $200 million in 60 day maturity commercial paper at a price of 99.35 par. (commercial paper is like a
1. 0 answers
2. 415 views
Assume that Pelon Inc. has issued a 10 year maturity bond with a yield of 8%. Its coupon rate is 5% and the coupons are paid
1. 0 answers
2. 521 views
How many distinct real numbers x are true for f(x)=0. Explain.F(x)=x^2+(1/(500x^2-1000))
1. 1 answer
2. 468 views
How was New England and the southern colonies were alike? How we're they different?
1. 1 answer
2. 1,013 views
Exact solutions for many-body problems are rarely encountered in physics. The following problem deals with a non-trivial motion
1. 0 answers
2. 444 views
A boy is spinning on a chair and holding a paper bag so that it is horizontal, and perpendicular to the axis of the rotation.
1. 0 answers
2. 420 views
A helium ion is at rest in a laboratory when it is put in an electric field of E=2 N/C. An infrared light, of wavelength 2000
1. 0 answers
2. 475 views
Suppose the Earth's orbit is divided in two by its minor axis as shown in the figure. How much longer in days does the Earth
1. 0 answers
2. 789 views
Two thin and identical steel rods move with equal speeds v=1 m/s in opposite directions and collide longitudinally. The
1. 0 answers
2. 616 views
Why is a beehive used in the preparation of hydrogen
1. 1 answer
2. 308 views
Verify that the function f(x)=x^3-6x^2+8x+4 satisfies the three hypotheses of Rolle's Theorem on the given interval [0,4]. Then
1. 0 answers
2. 618 views
how much heat would be required to warm the earth's oceans by 1 degree celcius if the volume of the earths oceans is
1. 1 answer
2. 692 views
How do you solve and or what formula do u use to solve this question: A stock that pays a constant dividend of $2.5 forever
1. 0 answers
2. 411 views
Maureen is a cocktail hostess in a very exclusive private club. The IRS is auditing her tax return. Maureen claims that her
1. 1 answer
2. 924 views
Find the derivativey= a^3 + cos^3 X
1. 1 answer
2. 326 views
So if mgh=1/2mv^2 and I'm solving for v is my answer going to be v= squareroot of 2* (gravity) 9.8m/s^2* (height) 3.67m?
1. 1 answer
2. 424 views
Real Disposable (Billions) Consumption Expenditures (Billions) Savings (Billions)Income $100 $150 ____________ 200 200
1. 0 answers
2. 602 views
(Simple Spending Multiplier) For each of the following values for the MPC (marginal propensity toconsume), determine the size of
1. 2 answers
2. 1,446 views
The measures of two consecutive angles of a parallelogram are in the Ratio 3:7. Find the measure of an acute angle of the
1. 1 answer
2. 1,903 views
32% of adult internet users have purchased products or services online. For a random sampling of 200 adult users, find the mean,
1. 2 answers
2. 4,401 views
You have 10.0 L of 1.2 M KNO3. What molarity would the KNO3 solution be if you were to take 2.5 L of it and dilute it to 10.0 L?
1. 1 answer
2. 966 views
An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 25.1 years
1. 1 answer
2. 539 views
A horse on a merry-go-round is 20 ft from the center and travels at 10 mph. What is its angular speed?
1. 1 answer
2. 416 views
The wheels of a bicycle have a 24 inch diameter. When the bike is being ridden so that the wheels make 12 rpm, how far will the
1. 1 answer
2. 486 views
A document ys to be reproduced using a duplicating camera where should the document be placed in order to obtain an exact copy
1. 2 answers
2. 1,907 views
At what angle to the horizontal must the nozzle of a machine gun be kept when firing to obtain a maximum horizontal range for
1. 1 answer
2. 592 views
L=2x-1W=x+3 Area =294cm find length and with of rectangle
1. 1 answer
2. 922 views
When you have 250. mL of a 2.80 M solution of HCl, how many moles of HCl doyou have
1. 1 answer
2. 354 views
Need to find info about chemical reaction of lemon juice and baking soda. Doing experiment where gas produced will inflate
1. 1 answer
2. 1,159 views
Billy, whose mass is 55.2kg, is on his way to work after an ice storm when he accidentally slips on a huge patch of ice whose
1. 1 answer
2. 402 views
A plane will normally cover 52 km in 12 min in still air. On one trip she flew with the wind for 2.5 hr. returning, she still
1. 0 answers
2. 455 views
A plane will normally cover 52 km in 12 min in still air. On one trip she flew with the wind for 2.5 hr. returning, she still
1. 0 answers
2. 399 views
8) A consumer groups tries to determine the most expensive items in a convenience store. Four items arepurchased in the
1. 2 answers
2. 2,222 views
I form a 3-digit number at random from the digits 1-9. What is the probability that my number has no repeated digits? All three
1. 3 answers
2. 612 views
If 4.02g of hydrogen and 25.0g of oxygen (at standard conditions) are reacted to form water vapor, what quantity of heat is
1. 3 answers
2. 521 views

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