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Questions Asked on February 21, 2011

During a baseball game, a batter hits apop-up to a fielder 82 m away. The acceleration of gravity is 9.8 m/s2 . If the ball
1. 5 answers
2. asked by Aditya
3. 13,058 views
A gas at 65 degrees Celsius occupies 4.22L. At what Celsius temperature will the volume 3.87L, assuming the same pressure?-kay
1. 5 answers
2. asked by kLb
3. 9,420 views
#1. A cubic polynomial function f is defined by f(x) = 4x^3 +ax^2 + bx + kwhere a, b and k are constants. The function f has a
1. 5 answers
2. asked by Amy
3. 8,055 views
The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is 5084.3kJ. if the change is
1. 2 answers
2. asked by Anonymous
3. 6,183 views
A Boeing 747 "Jumbo Jet" has a length of 59.7m. The runway on which the plane lands intersects another runway. The width of the
1. 3 answers
2. asked by CR
3. 5,366 views
How did the Renaissance contribute to the Age of Exploration?by emphasizing the importance of converting people to Christianity
1. 8 answers
2. asked by Tom
3. 5,264 views
Suppose a basketball player, Player A made 80% of her free throws last season and that she continues to shoot free throws at the
1. 2 answers
2. asked by Alex
3. 4,591 views
Which of the following should have the largest Henry's law constant (kh) in water?Ar CO2 CO CH3CH3 Xe
1. 4 answers
2. asked by Katherine Nguyen
3. 2,995 views
aqueous sulfurous acid H2SO3 was made by dissolving 0.200 L of sulfur dioxide gas at 19 C and 745 mm Hg in water to yield 500.0
1. 2 answers
2. asked by Sierra
3. 2,855 views
Calculate the pH of (1)0.150M KC2H3O2:(2)0.200M pyridine chloride, C5H5NHCl: and(3) 0.500M NaCl
1. 1 answer
2. asked by Joshua
3. 2,818 views
A string under a tension of 48 N is used to whirl a rock in a horizontal circle of radius 2.4 m at a speed of 18.48 m/s. The
1. 3 answers
2. asked by CR
3. 2,677 views
Vector A points to the north and has length A. Vector B points to the east and has length 2.5A. Find the direction of C= 7.4A+B
1. 2 answers
2. asked by anonymous
3. 2,605 views
It appears that people who are mildly obese are less active than leaner people.One study looked at the average number of minutes
1. 3 answers
2. asked by Kerry
3. 2,603 views
A farmer wants to build a rectangular fence using the side of his barn as one side. He has 200 yards of fencing available. Find
1. 6 answers
2. asked by Anonymous
3. 2,294 views
If a ball is selected at random from an urn containing six red balls, six white balls, and eight blue balls, what is the
1. 4 answers
2. asked by Vanny
3. 2,280 views
Blocks of mass 4, 8, and 24 kg are lined up from left to right in that order on a frictionless surface so each block is touching
1. 1 answer
2. asked by Cesar
3. 2,130 views
Some special vehicles have spinning disks (flywheels) to store energy while they roll downhill. They use that stored energy to
1. 1 answer
2. asked by olga
3. 2,087 views
Two blocks are arranged at the ends of a massless string as shown in the figure. The system starts from rest. When the 3.21 kg
1. 1 answer
2. asked by CR
3. 2,068 views
A book on a shelf 2.0 meters above the floor has a mass of 1.5 kilograms. What is the gravitational potential energy of the
1. 4 answers
2. asked by Sadie
3. 2,052 views
The following is current scientific evidence supporting the nebular theory on the formation of the solar system.'a the
1. 2 answers
2. asked by Anonymous
3. 2,026 views
A pair of dice is rolled. What is the probability of the sum of the numbers shown uppermost is less than 6?
1. 3 answers
2. asked by Vanny
3. 1,999 views
A brownie contains 1.30 ×102 mg of sodium. What is this mass equivalent to it in units of grams?
1. 1 answer
2. asked by Des
3. 1,987 views
The intravenous dosage of mannitol is 1.5g/kg, administered as a 15% mv solution. How many ml of the solution should be
1. 3 answers
2. asked by Mike
3. 1,875 views
Which statements describe the European Union (EU)?1) Citizens of EU nations can live, work, or study in any member nation. 2)
1. 4 answers
2. asked by kadi
3. 1,849 views
A solution is prepared by mixing 0.0400 mol CH2Cl2 and 0.0700 mol of CH2Br2 at 25°C. Assuming the solution is ideal, calculate
1. 3 answers
2. asked by Katrina
3. 1,672 views
A flower pot is dropped from the balconey of an apartment 28.5 metres above the ground. At a time of 1 second after the pot is
1. 3 answers
2. asked by just wondering
3. 1,652 views
A pair of dice is rolled, and the number that appears uppermost on each die is observed. Refer to this experiment and find the
1. 2 answers
2. asked by Vanny
3. 1,524 views
Please, help me with this problem...im a bit confused abt solving it.. In a tank of volume V=7.5 L, temperature T=300 K, there
1. 1 answer
2. asked by Gyuzal
3. 1,518 views
A box of mass m1 = 10.0 kg rests on a smooth, horizontal floor next to a box of mass m2 = 5.0kg. You push on the box 1 with a
1. 1 answer
2. asked by Brandon
3. 1,512 views
3 part question:A 52-kg girl weighs herself by standing on a scale in an elevator. What does the scale read when: a.)the
1. 3 answers
2. asked by Brandon
3. 1,456 views
In the figure below, two blocks are connected over a pulley. The mass of block A is 12 kg, and the coefficient of kinetic
1. 2 answers
2. asked by Ben
3. 1,431 views
The results of a recent television survey of American TV households revealed that 80 out of every 100 TV households have at
1. 1 answer
2. asked by Vanny
3. 1,429 views
Combustion analysis of 1.200 gram of an unknown compound containing carbon, hydrogen, and oxygen. What is the empirical formula
1. 1 answer
2. asked by Anonymous
3. 1,420 views
Among 500 freshmen pursuing a business degree at a university, 313 are enrolled in an economics course, 205 are enrolled in a
1. 4 answers
2. asked by Anonymous
3. 1,396 views
A pair of fair dice is tossed 3 times.Find the probability a seven appears 3 times.
1. 1 answer
2. asked by Traci
3. 1,384 views
How many mL of a 10.0% by volume stock solution of HCl must be diluted with enough water to make 300.mL of a 1.5% by volume
1. 1 answer
2. asked by Kelli
3. 1,383 views
At the surface of Jupiter's moon Io, the acceleration due to gravity is 1.81 . A watermelon has a weight of 43.0 at the surface
1. 0 answers
2. asked by Anonymous
3. 1,366 views
Kay so these are the strands of DNA5' C C A G T A G T T 3' 3' G G T C A T C A A 5' Let's say the DNA molecule above were the
1. 1 answer
2. asked by Melanie
3. 1,346 views
what fraction of a week is 7 secondsA) 1/24 B)1/1440 C) 1/3600 D) 1/86400
1. 7 answers
2. asked by hunter
3. 1,343 views
A parallel-plate capacitor is constructed from two circular metal plates or radius R. The plates are separated by a distance of
1. 1 answer
2. asked by Jon
3. 1,329 views
Can someone tell me how to do this type of problem? A particle moves along the curve y=sqrt(1+x^3). As it reaches the point
1. 1 answer
2. asked by Susie
3. 1,324 views
A point source of light illuminates an aperture 4.00m away. A 18.0 cm -wide bright patch of light appears on a screen 2.00m
1. 1 answer
2. asked by Jessica
3. 1,322 views
Estimate the speed of the parachutist descending at the constant velocity with open parachute. Assume the area of the parachute,
1. 1 answer
2. asked by Anonymous
3. 1,305 views
You have a stock solution of 14.4 M NH3. how many mililiters of this solution should you dilute to make 1050mL of .220 M NH3answ
1. 3 answers
2. asked by Natalie
3. 1,300 views
A particular kind of emergency breathing apparatus-often placed in mines, caves, or other places where oxygen might become
1. 1 answer
2. asked by Jake
3. 1,294 views
How much heat must be added to 190 g of ice at 0°C to melt the ice completely?
1. 1 answer
2. asked by Anonymous
3. 1,293 views
A solution is prepared by mixing 8 mL of .2 M Fe(NO3)3, 10mL of .001 M NaSCN, and 7 mL of .1 M HNO3a. calculate the
1. 1 answer
2. asked by Anonymous
3. 1,293 views
the coefficient of restitution between the ball and the floor is 0.60 If the ball is drop from rest at the height of 6.6 m from
1. 2 answers
2. asked by robert
3. 1,281 views
If the angle of incidence is 30 degrees, what is the angle of reflection?
1. 3 answers
2. asked by jack
3. 1,260 views
An experiment consists of selecting a card at random from a 52-card deck.A black face card (i.e., a jack, queen, or king) is not
1. 1 answer
2. asked by Vanny
3. 1,210 views
A gas at 65 degrees Celsius occupies 4.22L. At what Celsius temperature will the volume 3.87L, assuming the same pressure?-kay
1. 3 answers
2. asked by kLb
3. 1,184 views
a VW beetle goes from 0-60miles/hour with an acceleration of 2.35m/s(squared). How much time does it take for the Beetle to
1. 2 answers
2. asked by CR
3. 1,169 views
The scores on a standardized exam are normally distributed with mean= 50 and variance=16. (a) what percentage of the scores
1. 0 answers
2. asked by Julie
3. 1,165 views
A lower block is being pulled to the right across a wooden table and it is 5kg and the block on top of it weighs 2 Kg. The
1. 0 answers
2. asked by Paige
3. 1,113 views
How do you fix a loose lever on a faucet?
1. 0 answers
2. asked by Carl
3. 1,106 views
WHAT ARE THE BOUNDARIES OF 77.5 OUNCES?
1. 1 answer
2. asked by Tee
3. 1,078 views
A department store is holding a drawing to give free shopping sprees to two lucky customers. There are 15 customers who have
1. 2 answers
2. asked by Rachal
3. 1,051 views
The present height of the pyramid of Khafre in Egypt is 137m.An engineer surveying pyramid measures an angle of elevation of
1. 1 answer
2. asked by reshma
3. 1,049 views
how does Eudora Welty use dialogue to establish characters and character relationship in A Visit of Charity?
1. 1 answer
2. asked by Vivian
3. 1,019 views
A crane lifts a concrete hopper of mass 370 kg from the ground to the top of a 38 m building that is under construction. The
1. 1 answer
2. asked by anonymous
3. 1,016 views
A transverse wave, frequency 15.0 Hz, travels along a string. Distance between a crest and an adjacent trough is 3.50m. What is
1. 1 answer
2. asked by Taira
3. 1,000 views
the probability is 0.6 that a person shopping at a certian store will spend less than $20. For group of size 19, find the mean
1. 1 answer
2. asked by Olivia
3. 1,000 views
A block is sitting on a ramp. The block feels a force of friction sufficient to keep it from sliding down the ramp, which makes
1. 1 answer
2. asked by Paige
3. 995 views
How long will it take a 1080 W motor to lift a 330kg piano to a sixth-story window 16.0m above?
1. 2 answers
2. asked by John
3. 985 views
‎1. A 3kg body moving towards the east with a speed of 5 m/s collides with a 2kg ball originally at rest. After the collision
1. 2 answers
2. asked by Sean
3. 985 views
A metal, , of atomic weight 96 reacts with fluorine to form a salt that can be represented as . In order to determine and
1. 1 answer
2. asked by Robin
3. 961 views
4. List at least three steps that make-up a workable plan and explain why each is important.
1. 0 answers
2. asked by candy
3. 957 views
Two lines L1 and L2, are perpendicular. The equation of L1 is 3x-y=2. L2 passes through (-5, -1)
1. 1 answer
2. asked by Jocelyne
3. 948 views
A sociologist is testing the null hypothesis that the percentage of school superintendents who earn an annual salary of more
1. 2 answers
2. asked by Rina
3. 907 views
40 students live in a dormitory. 5 have swine flu. If 4 students are selected at random, what is the probability that 1 or 2 of
1. 1 answer
2. asked by Traci
3. 900 views
How do I prepare a consolidated elimination worksheet when the parent purchases all of subsidiary's bonds on open market?
1. 0 answers
2. asked by Martha
3. 896 views
In the Bohr model of the hydrogen atom,the speed of the electron is approximately 2.31 × 106 m/s.Find the central force acting
1. 1 answer
2. asked by CR
3. 896 views
not sure about this can someone please help mesolve for x using the addition principle x+10=-13 Now I added 10 to both sides 10
1. 2 answers
2. asked by SO LOST
3. 887 views
Having trouble with these pairs of numbers (20,21,29) - (28,45,53) I am supposed to develop a Pythagorean triple. Here is that I
1. 2 answers
2. asked by Dave
3. 873 views
Find A �¾ B, given A = {people who are less than 20 years old} and12) ______ A) {all people in the world} B) {people who are
1. 0 answers
2. asked by cassie
3. 870 views
MathMate i would really appreciateif you can show me where the logarithms can be used.I know they are unnecessary and I already
1. 3 answers
2. asked by anon
3. 866 views
for our lab, we are given the molarity of ClO-. We are then supposed to use beer's law to determine the molarity of the dye that
1. 1 answer
2. asked by Anonymouse one
3. 849 views
A 70 kg student traveling in a car with a constant velocity has a kinetic energy of 1.4 104 J. What is the speedometer reading
1. 0 answers
2. asked by CHRISTINE
3. 847 views
In Jessica's art class, the ratio of girls to boys is 3:2. If there are 25 students in the class, how many more girls are there
1. 3 answers
2. asked by Anonymous
3. 846 views
what is the solution of 3-8x = 141?-18 -12 1/18 18
1. 3 answers
2. asked by hunter
3. 846 views
When your car is moving at 3.33 m/s and car has a mass of 860 kg, how much translational kinetic energy does it have?
1. 1 answer
2. asked by olga
3. 834 views
We determine the structure of the Earth's core using ?deep mine shafts. satellite imaging. radar and sonar. seismic wave data.
1. 0 answers
2. asked by Anonymous
3. 829 views
How many grams of solid KOH are needed to prepare 100.mL of a 1.7 M solution?
1. 2 answers
2. asked by Kelli
3. 828 views
How do you write a conversion factor relating cubic centimeters and milliliters?
1. 0 answers
2. asked by rachel
3. 818 views
A metal, , of atomic weight 96 reacts with fluorine to form a salt that can be represented as . In order to determine and
1. 0 answers
2. asked by Robin
3. 818 views
Rani is a member of a tribe of Indians in the rain forest of south america.The tribe's witch doctor believes that Rani is
1. 1 answer
2. asked by vedrana
3. 815 views
How much potential energy does a 60kg skater have before she starts her ride, 12m above the ground?
1. 0 answers
2. asked by David
3. 810 views
Axia College MaterialAppendix B Sentence Structure Review Each of the following sentences has one grammatical error. The errors
1. 5 answers
2. asked by Anonymous
3. 801 views
while waiting in the checkout line at the grocery store you add the prices up of your 3 items to make sure you have enough
1. 2 answers
2. asked by hunter
3. 793 views
Consider the graph of y2 = x(4 − x)2 (see figure). Find the volumes of the solids that are generated when the loop of this
1. 0 answers
2. asked by ben
3. 793 views
Suppose that the number of bacteria in a certain population increases according to an exponential growth model. A sample of 2600
1. 1 answer
2. asked by Rachal
3. 792 views
(underapplied or overapplied overhead)At the end of 2010, jackson tank company's accounts showed a 66,000 credit balance in
1. 1 answer
2. asked by Anonymous
3. 788 views
A room is in the shape of a right triangle. The hypotenuse is 8 meters longer than the short leg and the long leg is 4 meters
1. 2 answers
2. asked by Julie
3. 783 views
Each of the following sentences has one grammatical error. The errors are in one of the following four categories:
1. 1 answer
2. asked by Meaghan
3. 781 views
you comment on every question with a question. if you cant answer them, and just say I'll be glad to check your answer then
1. 1 answer
2. asked by Anonymous
3. 774 views
A particular kind of emergency breathing apparatus-often placed in mines, caves, or other places where oxygen might become
1. 0 answers
2. asked by Jake
3. 764 views
A tennis ball of mass m = 0.065 kg and speed v = 35 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45°
1. 1 answer
2. asked by Johnathon
3. 754 views
the probability is 0.6 that a person shopping at a certian store will spend less than $20. For group of size 19, find the mean
1. 0 answers
2. asked by Olivia
3. 754 views
What is the expanded form for 17,500 mph
1. 1 answer
2. asked by Dalida
3. 739 views
A student is traveling in a car with a constant velocity has a kinetic energy 1.0 x 10^4 J. What is the speedometer reading of
1. 0 answers
2. asked by sandy
3. 732 views

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