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Drew

Questions and answers by visitors named Drew

Questions (151)

a. Calculate the expected freezing-point depression of a 0.200 m KNO3 solution.b. Will the value you calculated match the actual
1. 5 answers
2. 6,737 views
A basketball player attempting a free throw shoots the ball at an angle of 35 above the horizontal. The basket is 4.21 m from
1. 3 answers
2. 1,654 views
a quarter sits at the bottom of a wishing well where the gauge pressure reads 294 kPa. If the quarter has a diameter of 24mm,
1. 1 answer
2. 423 views
1.) The chief designer for a large automobile company is considering 4 different radiator grills, 2 different style of
1. 3 answers
2. 1,021 views
How do you simplify this?1/{(x/y)+1} multipy numerator and denominator by y. y (1)/y(x/y +1) then simplify y/1+x?
1. 1 answer
2. 439 views
What are the 4 roles a government takes in regulating market activities???
1. 1 answer
2. 307 views
What are the 4 roles a government takes in regulating market activitiesand What is a popular measure of the price level Do some
1. 1 answer
2. 403 views
the 2 main parts to a federal budget???anyone? how bout revenues and outlays??
1. 1 answer
2. 296 views
why is it that an object can accelerate while travelling at constant speed but not at constant velocity?
1. 1 answer
2. 739 views
light travells in a straight line at a constant speed of 300,000 km/sec. what is the light's acceleration?
1. 3 answers
2. 620 views
in 5 seconds, a car moving in a straight line increases it's speed from 50km/h to 65km/h, while a truck goes from rest to 15km/h
1. 4 answers
2. 1,488 views
For a given nominal interest rate, an unexpectedly low inflation rate ______ the real interest rate.a. increases b. decreases c.
1. 3 answers
2. 1,295 views
Given a single deck of cards, what is the probability of drawing either a king or a diamond? Hint – There are four kings in a
1. 2 answers
2. 490 views
A solenoid is 10.0 cm long, has a radius of 0.500 cm and has 8000 equally spaced loops. What angular frequency needs to drive
1. 1 answer
2. 495 views
what is the word used for distance traveled per time unit? What is speed in a given direction? And what is the word used for A
1. 2 answers
2. 861 views
I have to make a graph showing to the tenth of a second showing velocity, displacement, and acceleration for throwing a tennis
1. 3 answers
2. 350 views
A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the
1. 3 answers
2. 659 views
A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the
1. 3 answers
2. 2,066 views
Let O represent the origin and P be the point (9, -4). Find the positive angle (counterclock wise direction)that the line
1. 2 answers
2. 530 views
Let O represent the origin and P be the point (9, -4). Find the positive angle (counterclock wise direction)that the line
1. 2 answers
2. 494 views
A student places 100 mL of tap water in a beaker and uses both a thermometer and a temperature probe to measure temperature. The
1. 3 answers
2. 770 views
A student heats 10.8 g of lead to a temperature of 90.5 C. He places the hot lead into a container of water, initially at a
1. 4 answers
2. 484 views
A flowerpot falls off a windowsill and falls past the window below. It takes the pot 0.42 s to pass this window, which is 1.90 m
1. 3 answers
2. 1,107 views
At t=0 car A and truck B are 350 m apart on a straight road. Starting from rest car A speeds up with a constant acceleration of
1. 2 answers
2. 554 views
A sprinter starts from rest and reaches his top speed in 4 seconds running with a constant acceleration. He then maintains that
1. 3 answers
2. 977 views
Explain how four red marbles can make up 1/3 of a group of marbles and three blue marbles make up 1/4 of the same group.
1. 6 answers
2. 1,168 views
Commercial bleach contains 5.25% (by mass) of NaClO in water. It has a density of 1.08 g/mL. Calculate the molarity of this
1. 1 answer
2. 773 views
Commercial bleach contains 5.25% (by mass) of NaClO in water. It has a density of 1.08 g/mL. Calculate the molarity of this
1. 3 answers
2. 2,129 views
A pilot flies an airplane in a vertical circular loop at a constant speed õ = 160 m/s. If the pilot’s apparent weight at the
1. 2 answers
2. 1,076 views
Suppose a fixed cannon is to fire a projectile at an enemy tank, which is moving toward the cannon at a speed of 15 mph. If the
1. 1 answer
2. 466 views
Suppose a fixed cannon is to fire a projectile at an enemy tank, which is moving toward the cannon at a speed of 15 mph. If the
1. 1 answer
2. 482 views
How Would you make a one paragraph thesis 3rd person on an architecture career
1. 1 answer
2. 412 views
When a sample of PCl5(g) (0.02087 mol/L) is placed in 83.00 L reaction vessel at 491.0 °C and allowed to come to equilibrium
1. 4 answers
2. 1,096 views
I have to write a paper tonight answering the question:What is the greatest threat to US supremacy today? Its a opinion paper
1. 2 answers
2. 536 views
A steel cable is stretched across a gorge. The cable is 190 m long and has a mass of 44 kg. When one end of the cable is struck
1. 1 answer
2. 479 views
A steel cable is stretched across a gorge. The cable is 190 m long and has a mass of 44 kg. When one end of the cable is struck
1. 2 answers
2. 550 views
I can't find anything on the internet to support my subject in my expository essay can anyone help my topic is "Explain the
1. 1 answer
2. 431 views
An electromagnetic wave has an electric field strength of 145 V/m at a point P in space at time t. A parallel-plate capacitor
1. 2 answers
2. 536 views
This is the first in a series of hw pages. If anyone would be able to help me with this one I think I would be able to complete
1. 2 answers
2. 732 views
It is difficult to type these but I'll do my best. This is the first question and I just don't get it. My professor is out of
1. 3 answers
2. 829 views
Are all mixtures solutions? Are all solutions mixtures? Give an example.
1. 1 answer
2. 367 views
How many milliliters of 0.230 M Na2S2O3 solution are needed to titrate 2.349 g of I2 according to the equation below?I2(aq)+2S2O
1. 3 answers
2. 591 views
A 4.3 kg bucket of water is raised from a wellby a rope. The acceleration of gravity is 9.8 m/s2 . If the upward acceleration of
1. 2 answers
2. 649 views
A 4.3 kg bucket of water is raised from a wellby a rope. The acceleration of gravity is 9.8 m/s2 . If the upward acceleration of
1. 2 answers
2. 616 views
Find the x-coordinates of all points on the graph of y=x^3 - 4x^2 + 5x at which the tangent line is horizontal.
1. 3 answers
2. 416 views
Find the x-coordinates of all points on the graph of y = x^3 - 4x^2 + 5x at which the tangent line is parallel to 2y - 10x - 7 =
1. 4 answers
2. 1,251 views
.02(2X-3)-0.03(3x(.2)=-.02
1. 3 answers
2. 588 views
H2SO4(aq) + Ba(NO3)2(aq) = BaSO4(s) + 2HNO3(aq)overall heat gen by reaction answer is supposed to be -659.3 but I keep coming up
1. 2 answers
2. 543 views
Let R be the region in the first quadrant bounded by the graphs of y=e^-x, y=1/2x+1, and x=2.Then find the volume of the solid
1. 2 answers
2. 523 views
A car is approach a corner too fast and locks up the brakes at point A and holds them on for 12.5 M to point B. The car then
1. 1 answer
2. 464 views
Jeff is thinking of a function machine.He says that the output is 5 when the input is 4.What are two different rules that he
1. 1 answer
2. 330 views
describe 2 details about the life of the Incas
1. 1 answer
2. 390 views
A frog in a hemispherical bowl, as shown below, just floats in a fluid with a density of 1.26*10e3 kg/m3. If the bowl has a
1. 9 answers
2. 5,081 views
A missile's trajectory takes it to a maximum altitude of 1300Km.If its launch speed is 5.9 Km/s, how fast is it moving at the
1. 4 answers
2. 2,600 views
Givenf''(x)=5x−6 and f'(−3)=−6 and f(−3)=2. find f'(x) and f(1)
1. 1 answer
2. 301 views
A solution was made by dissolving 10.0g of a nonvolatile nonelectrolyte compound in 100.0g of water froze at -0.93C. What is the
1. 2 answers
2. 566 views
3 disadvantages for town crying
1. 6 answers
2. 344 views
How do you solve: (2x+1)(x-4)=0
1. 1 answer
2. 264 views
does sec(x)tan(x)*tan(x)=[sec(x)(tan^2)x]
1. 1 answer
2. 332 views
Qd=15.0-0.2P where Qd is annual quantity demanded in millions of units and P is the wholesale price. Incurred cost of $60
1. 1 answer
2. 379 views
Find the discriminant. Tell which conic section the graph will be.3x^2 + 12 xy + 9y^2 + 7x -2y - 100
1. 1 answer
2. 319 views
Hi I need help. Can you show me how to solve this problem?Radical Inequalities. -2 + square root 9-5x greater than or equal to 6
1. 1 answer
2. 357 views
Use Newtons method to find the roots of the equation 1/x=1+x^3
1. 3 answers
2. 369 views
FM radio signals are electromagnetic waves transmitted between frequencies of 88 MHz and 107 MHz. Find the range of wavelengths
1. 4 answers
2. 1,034 views
A certain dog whistle operates at 23.5 kHz, while another (brand X) operates at an unknown frequency. If neither whistle can be
1. 4 answers
2. 3,362 views
A balloon is being filled at a rate of 4000 cm^3/min. How fast is the surface area of the ballon increasing when the radius is
1. 4 answers
2. 496 views
The position (in meters) of a particle is modeled by y=x^3-12.5x^2+51x-67.5, where xis in seconds. Find the max, min and
1. 1 answer
2. 380 views
Can someone please show steps as I am having a hard time understanding. The position (in meters) of a particle is modeled by
1. 6 answers
2. 461 views
What is the molarity of the solution produced when 14.1 grams of ammonia is dissolved in sufficient water to prepare .100 liters
1. 5 answers
2. 1,012 views
Find the length of the curve y=�ã(2x), from x=1 to x=4.
1. 1 answer
2. 266 views
Fiind the area bounded by the parabola y^2 = 8x, the x axis and the line x=2
1. 4 answers
2. 1,520 views
A tennis ball is thrown horizontally from an elevation of 20.60 m above the ground with a speed of 19.0 m/s.(a) Where is the
1. 3 answers
2. 533 views
A mixture of ethane and ethene occupied 35.5 L at 1.000 bar and 405 K. Thismixture reacted completely with 110.3 g of O2 to
1. 4 answers
2. 539 views
Ice fishing equipment weighing 3,000 N is pulled at a constant speed V = 0.5 m/s across a frozen lake by means of ahorizontal
1. 5 answers
2. 501 views
The "resistant" threshold for gemifloxacin is >1 mg/L while the "resistant" threshold for sulfamethoxazole is >512 mg/L. Explain
1. 1 answer
2. 375 views
Solve the following and express the answer in scientific notation: (5.4 x 10^4) x (4.5 x 10^8)A. 2.4 x 10^10 B. 24 x 10^11 C. 24
1. 1 answer
2. 376 views
The temperature of the water around a nuclear reactor core is about 300 oC. what is this temperature in degrees Fahrenheit?A. 27
1. 1 answer
2. 400 views
On a cold winter day, the temperature is -10.0º C. What is the reading on the Fahrenheit scale?A. 10.0 oF B. 12.0 oF C. 13.0 oF
1. 2 answers
2. 618 views
The water molecule (H2O) is composed of 2 atoms of hydrogen and one atom of oxygen. What is the mass of one mole of water?A. 3 g
1. 2 answers
2. 557 views
The chemical explosive nitroglycerine has the formula C3H5(NO3)3. How many oxygen atoms are in the formula unit for this
1. 5 answers
2. 2,858 views
What is the gram fomula mass of calcium carbonate (CaSO4)?A. 6 g B. 136.2 g C. 230.0 g D. 235.4 g think B
1. 1 answer
2. 354 views
What is the gram molecular mass of C2H6?A. 8.0 g B. 30.0 g C. 40.0 g D. 50.0 g think B
1. 1 answer
2. 331 views
How many moles of magnesium is 1.25 x 1023 atoms of magnesium?A. 0.208 × 101 mol Mg B. 2.08 × 101 mol Mg C. 2.08 × 10 -1 mol
1. 7 answers
2. 9,941 views
How many atoms are in 1.14 mol of propane (C3H8)?A. 7.55 x 1023 atoms B. 7.77 x 1024 atoms C. 7.55 x 1024 atoms D. 7.55 x 1030
1. 5 answers
2. 734 views
How many moles are in 4.81 x 1024 atoms Na?A. 0.799 mol Na B. 7.99 mol Na C. 481 mol Na D. 7.99 x 10-1 mol Na B
1. 1 answer
2. 346 views
In order to determine the number of atoms in a compound, you must know the number of atoms in a representative particle of the
1. 1 answer
2. 435 views
What is a problem-solving technique that uses equivalent measurements in ratio form to solve problems?A. Avogadro's number B.
1. 1 answer
2. 378 views
How many atoms are in 3.14 mol of methane (CH4)?A. 7.56 x 1023 atoms B. 7.56 x 102 atoms C. 7.56 x 104 atoms D. 7.56 x 1024
1. 4 answers
2. 707 views
What is the molar mass of hydrogen?A. 1.01 g/mol B. 11.01 g/mol C. 101.1 g/mol D. .0111 g/mol D
1. 6 answers
2. 430 views
A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of
1. 1 answer
2. 350 views
37% of college students say they use credit cards because of the rewards program. You randomly select 10 college kids and ask
1. 4 answers
2. 3,805 views
Calculate the speed of a 10,000 kg airliner with a kinetic energy of 3.1 x 10^9 J.
1. 1 answer
2. 430 views
Calculate the speed of a 10,000 kg airliner with a kinetic energy of 3.1 x 10^9 J.
1. 1 answer
2. 351 views
A mass m1 = 4.1 kg rests on a frictionless table and connected by a massless string to another mass m2 = 5.9 kg. A force of
1. 2 answers
2. 1,216 views
Althea invested $10,000 for one year, part at 7% and part at 6 1/4%. If she earned a total interest of$656.50, how much was
1. 3 answers
2. 569 views
Jennifer has a recipe that calls for horseradish sauce that is 45% pure horseradish. At the grocery store she finds one
1. 2 answers
2. 990 views
How many 6 inch pieces can you cut from a spool of ribbon that is 10 yards long?
1. 2 answers
2. 559 views
Evaluate the following limits(x^2 + 2x - 8)/x-2 Lim x->2
1. 1 answer
2. 322 views
A teacher is choosing 4 students from a class of 30 to represent the class at a science fair. In how many ways can the teacher
1. 2 answers
2. 920 views
The extracellular concentrations of Na+ and K+ are 135mM and 6mM, respectively.The intracellular concentrations of Na+ and K+
1. 1 answer
2. 373 views

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