glenn
Most popular questions and responses by glenn
Physics
What is the kinetic energy of an automobile with a mass of 1250 kg traveling at a speed of 11 m/s?
asked on April 14, 2010 
chemistry
predict whether or not a precipitate will form if you mix 75ml of a NaOH solution with pOH = 2.58 with 125ml of a 0.018M MgCl2 solution. Identify the precipitate, if any.
asked on April 9, 2011 
math
a room is 30 ft long, 25 ft wide and 14 ft high. if 42 balloons are inside the room, how many cubic feet of space does this allow for each balloon?
asked on July 21, 2017 
Solid Mensuration 04/15/16
Given trinagle ABC whose sides are AB=15 in., AC=25 in., and BC=30 in. Form a point D on the side AB, a line DE i drawn to a pointE on side AC such that angle ADE is equal to angle ABC. If the perimeter of triangle ADE is 28 in., find the lengths of line
asked on April 14, 2016 
History
what is the term for a government ruled by the people who then elect thier officials?
asked on January 7, 2012 
ALGEBRA
From a survey of 100 college students, a marketing research company found that 35 students owned iPods, 25 owned cars, and 5 owned both cars and iPods How many students owned either a car or an iPod (but not both)? How many students do not own either a car
asked on January 12, 2014 
life orientation
three example of human rights violation and discrimination and give reason
asked on April 16, 2019 
uv,,math
find the distance between the cities,,assume that thee earth is a sphere radius of 4000 miles at that cities are on same longitude, one city is due north of the order,,,San Francisco California has 37 degree 47'36" while Seattle,Washington 47 degree 37'18"
asked on September 14, 2016 
Chemistry
An antacid contains 200mg of aluminum hydroxide and 200mg of magnesium hydroxide per capsule. a. How many moles of Al(OH)3 does each capsule contain? b. What is the mas in milligrams of 0.0457 mole of magnesium hydroxide?
asked on July 1, 2013 
Science
At a county fair, a boy takes his teddy bear on the giant Ferris wheel. Unfortunately, at the top of the ride, he accidentally drops his stuffed buddy. The wheel has a diameter of 15.3 m, the bottom of the wheel is 3.37 m above the ground and its rim is
asked on November 26, 2012 
Physics
A jet catapult on an aircraft carrier accelerates a 200kg plane uniformly from rest to a launch speed of 320km/h in 2.0s. What is the magnitude of the net force on the plane?
asked on October 27, 2009 
chemistry
if 3.0 moles of nitrogen gas are collected in a 35.0 liter container at 20 C what would be the the pressure exerted on the container in atmospheres
asked on October 27, 2012 
math
What models can be used to help explain the concepts of addition and subtraction of rational numbers? What are the benefits to using such a model? What limitations does the model have? Create an addition or subtraction problem and demonstrate how the model
asked on October 26, 2010 
physics
a heavy object is dropped from the top of a 25 m tall building and it reaches the ground in 2.26 seconds determine the acceleration due to gravity how far did the object fall during the first second how far did the object fall during the 2nd second
asked on July 14, 2016 
Chemistry
An antacid contains 200mg of aluminum hydroxide and 200mg of magnesium hydroxide per capsule. a. How many moles of Al(OH)3 does each capsule contain? b. What is the mas in milligrams of 0.0457 mole of magnesium hydroxide?
asked on July 1, 2013 
social studies
What was the time period Call during the early 1500s where people wanted to reform the church
asked on January 11, 2012 
social studies
What was the main economic system in the middle ages
asked on January 11, 2012 
Chemistry
I'm stuck on the concept of negative and positive charges. A dish has 10 + charges and 10  charges. 2 of the negative charges are taken away. What is the overall charge? I think the answer is 2+ charges
asked on September 9, 2008 
World Literature
What literature do you consider to be part of the United States' current literary canon, and why? How do those selections reflect the cultural tradition of the United States? There is no one final list; it should always be rather fluid. But here are some
asked on January 15, 2007 
Math
Professor Beaker has a 50milliliter solution containing 60% acid. How many milliliters of pure water should he add to this solution to produce a solution containing 40% acid?
asked on October 12, 2017 
writing
Need help with Achieving a Readable Style. Memorandum TO: Jerry Bradshaw DATE: March 29, 2011 FROM: Bill Jones SUBJECT: The Best Approaches in Alternative Fuel Research Purpose Alternative fuels are becoming an important area of research. There are two
asked on February 1, 2015 
social studies
What Was Thomas more's book called that explained perfect world and criticize his times?
asked on January 11, 2012 
social studies
What was this king's law called which said that the throne would control religion in england SorryMrs Sue
asked on January 11, 2012 
social studies
What was probably Day Vinci's Most famous painting
asked on January 11, 2012 
social studies
Middle age,Renaissance, reformation, revolution, who came up with the system to classify living things?
asked on January 11, 2012 
social studies
Middle age, Renaissance, reformmation , revolutions, in what city did that Renaissance begin
asked on January 11, 2012 
social studies
What event set precedence that alleviated the problem of having no of succession in the empire roman
asked on January 9, 2012 
business
If the nations of the world were to suddenly cut off all trade with one another, what products might you no longer be able to obtain in your country? (Also discuss where these products are being imported from and the implications for YOUR country having to
asked on February 19, 2011 
Math
Two cars are 30 miles apart and moving toward each other on the same highway. One car is going 10 miles per hour faster than the other. How fast is each of the cars going if they pass each other 15 minutes later?
asked on October 12, 2017 
physics
the maximum possible speed a certain car can achieve is 80 m/s (about 180 mph) the car covers a distance of 1km while accelerating up to this speed from rest how fast is the car moving at the halfway point of 500m (the answer is not 40m/s) at what point is
asked on July 14, 2016 
physics
the driver of a truck going 50 mph applies the brakes giving the truck a deceleration of 4.5 m/s^2 how long will it take the truck to come to a complete stop what distance will it cover
asked on July 14, 2016 
physics
a 10k race was held the first place finisher completed the 10km run in 29.5 minutes what was the average speed in miles per hour. In another race the person is given a head start and if they beat the first place finisher at the end the win $2,500 the
asked on July 11, 2016 
writing
memorandum help. help to make this better readable for the viewer. Purpose Alternative fuels are becoming an important area of research. There are two main reasons researchers are looking for a new and reliable fuel source. The first is to combat the
asked on February 1, 2015 
math
What is the answer to this math problem. I have 13 apples and pears. How many of each could i have?
asked on May 7, 2012 
Chemistry
a compound is made up of iron and oxygen, only. the ratio of iron ions to oxide ions is 2:3 in this compound. the iupac name for this compound is?
asked on April 22, 2012 
Liinear equations
Write the equation for this situation the value,V in hundreds of dollars of Bob's stamp collection is 12 dollars more than 1/3 of the age, t(in years)
asked on March 1, 2012 
social studies
Who was a english king who broke away from the catholic church And started his own religion
asked on January 11, 2012 
social studies
What was the king's law call which said that the throne with control religion in england
asked on January 11, 2012 
social studies
Who did joan of arc Believe was leading her army?
asked on January 11, 2012 
social studies
Middle age Renaissance, reformation, revolution. How was the plague plague
asked on January 11, 2012 
math
A rock with weight of 388 n is on a cliff 1800 m high above head.l bull with a mass of 450 kg is running toward you at a speed up 5.2m/s which is more dangerous (term of energy ) defend your answer
asked on January 9, 2012 
social studies
What event set precedence That alleviated the problem of having no law of succession in the empire
asked on January 9, 2012 
physics
A person standing on Earth at 44 degrees 9 minutes North, how fast is he rotating around the Earth in mph?
asked on May 22, 2011 
Statistics
Given that the mean is 40 and the standard deviation is 1.5: A) what is the probability of selecting a value between 39 and 46 B)what value will allow only 15% of the data to be greater than it
asked on March 30, 2011 
physics
a driver traveling 42 mph speeds up to 58 mph over distance of 660 feet how long does this increase in speed take what is the driver's acceleration
asked on July 14, 2016 
physics
a sports car can accelerate fo 0 to 60 in 3.2seconds what is the acceleration of the car in m/s^2 what distance would it travel at this time
asked on July 14, 2016 
physics
you live 6 miles away from a movie theatre on a particular day it takes you 18 minutes to get to the movie theatre from your house, only half as much time to get home what was your average speed in mph for driving from the theatre, driving home , and the
asked on July 11, 2016 
physics
suppose you are able to run at a constant speed of 11mph how long would it take you to run a marathon which is 26.2 miles? what percent of the marathon would you have completed after running 30 minutes?
asked on July 11, 2016 
math
hi.A vehicle weighing 1.3 tonne leaves skid marks 23 meters long.After 15 meters it hit pedestrain.The co efficient of friction is .7 .what was vehicle initial speed at start of skid and at impact.thanks
asked on February 5, 2013 
science
Distinguish Between terminal velocity and free fall. Be able to describe defective gravity on motion and state acceleration rates of falling objects ( due to gravity)
asked on January 24, 2012 
science
Explain the law of universal gravitation
asked on January 10, 2012 
physics
A baseball with a mass .8 k g is traveling at a velocity of 11.8m/s. what is it kinetic energy. Round your answer to the nearest tenth.
asked on January 9, 2012 
science
A baseball with a mass of .8 kg is traveling at a velocity of 11.8 m/s. what is it kinetic energy
asked on January 9, 2012 
science
mr mcmurry taked 4327 sips of mountain dew each day. each time he takes a drink he moves the bottle 45cm to his mouth and another 45cm to his mouth and another 45cm back to the table .If the bottle has a massof 567 grams (5.1newtons)how much work does Mr
asked on October 24, 2009 
Math
There are 7 girls in a room. Each girl has 7 backpacks in the room. In each backpack there are 7 big dogs. For every big dog, there are 7 puppies too! HOW MANY LEGS ARE IN THE ROOM?
asked on February 13, 2008 
history
an ancient greek astonomer and mathematician named_________
asked on August 23, 2007 
physics
a man walks 0.9 miles around a shopping mall in half an hour what is his speed in miles per hour, in meters per second, and kilometers per day/?
asked on July 11, 2016 
physics
a woman walks along a circular path of radius of 15m it takes her 2min to get halfway around the path at this halfway point what is her approximate distance traveled, displacement, average speed in m/s, and average velocity in m/s?
asked on July 11, 2016 
physics
a dog runs at a speed of 4m/s how many minutes does It take the dog to go 1 km?
asked on July 9, 2016 
physics
a man walks 0.9 miles around a shopping mall in a half an hour what is the speed in miles per hour in meters per second and in kilometers per day
asked on July 9, 2016 
phyics
a dog runs at a speed of 4m/s how many minutes does It take the dog to go 1 km?
asked on July 9, 2016 
physics
a woman drives at a speed of 70 mph how many miles does she travel in 24 minutes
asked on July 9, 2016 
Other
What's a good way to tell a human skull from a rock at home
asked on March 20, 2016 
math
what is 201570 =
asked on March 8, 2015 
Trigonometry
Write the quadratic function whose zeros are: 1. 2+square root of 5, 2square root of 5 2. 3+7i,37i 3. 5±i Please tell me how to get them. I have no clue on how to solve them.
asked on August 27, 2014 
Trigonometry
The area of a rectangle is a function of the length when the width is unity. Please answer.. My mind is going crazy ):
asked on July 10, 2014 
physics
hi.A vehicle weighing 1.3 tonne leaves skid marks 23 meters long.After 15 meters it hit pedestrain.The co efficient of friction is .7 .what was vehicle initial speed at start of skid and at impact.thanks
asked on February 5, 2013 
programming
the driverite insurance company provides automobile insurance policies for drivers. design a FLOWCHART for the following:
asked on October 28, 2012 
math
If you drop a penny in the basketball form a tall building what happened and why Thank You
asked on January 10, 2012 
science
The gravitation pull of a object depends 2 factors what are they
asked on January 10, 2012 
math
How are potential energy and kinetic energy similar? How are they different. Thank you
asked on January 9, 2012 
math
What is mechanical energy
asked on January 9, 2012 
physics
How are potential energy and kinetic energy similar. How are they different (thank you)
asked on January 9, 2012 
physics
What happened to the potential energy of an object as it begins to fall? What effort does this have on the mechanical energy?
asked on January 9, 2012 
social studies
Before the republicans of the empire what group of people expanded it from the north italy to excompass rome
asked on January 9, 2012 
History
what were the roman laws called that were writtin down to ensure equal treatment between the rich and poor?
asked on January 7, 2012

Math
I've tried looking at similar problems but I'm still confused.
posted on October 12, 2017 
mathprecalculus
Substitute y for 77 Get sin by itself, divide by 7 on both sides Consider everything in the parenthesis of sin as theta, then solve using sin^1 77 = 7sin(theta)+80 3 = 7sin(theta) 3/7 = sin(theta) or sin^1(3/7)=theta take the answer to sin^1(3/7) and
posted on July 12, 2017 
Math
First you use the known to find the unknown.... U2=22, n=5 U15=62, n=15 You use from the formular Un=a+(n1)d from the fith term 22=a+(51)d 22=a+4dequation 1 From the 15th term 62=a+(n1)d 62=a+(151)d 22=a+14dequation 2 a+4d=22 you
posted on November 17, 2016 
Statistics
2Proprotion test
posted on August 26, 2016 
Physics Help
A car starts from rest and travels with a constant acceleration at a distance of 500 meters.find its velocity at after 30secs. Express your answer in miles/hr in scientific notation? Answer This Question
posted on January 19, 2016 
Physics Help
A car starts from rest and travels with a constant acceleration at a distance of 500 meters.find its velocity at after 30secs. Express your answer in miles/hr in scientific notation?
posted on January 19, 2016 
5th grade math word problems
A fur jacket cost seven times what a silk scarf cost. If the difference in their cost is $72, what is the cost of each item?
posted on November 20, 2015 
Statistics help
Hello. I managed to solve (a) Expected aggregate weight = 300 x 25 = 7500 lbs Thus, Since 7500 lbs is over the maximum capacity of 4000lbs, The probability is 1.00 (It will definitely be 100% over the capacity) I don't know how to solve (b) though. If you
posted on June 22, 2013 
chemistry
.035
posted on October 28, 2012 
PHYSICS
First calculated the resultant deceleration caused by the breaks using F=MA. F being given as 62500N, and M as 25,000KG. The resultant A is 2.5M/s^2. Then using V^2 = U^2 + 2AS we can calculate the speed of the train after a displacement (s) of 75M. We
posted on July 3, 2012 
Calculus
Were you drunk when you posted this Steve?
posted on April 19, 2012 
math
I'm stuck too. I can't upload a picture but the image contains one of each shape: sphere, cone, cube, rectangle prism, pyramid.
posted on November 22, 2010 
science
how much work is done by a crane that lowers 1,000 newtons of material a distance of 150 medters?
posted on October 24, 2009 
Algerbra 2
a) 3(5x+6) = 14x 1 b) 15x+18 =14x1 c)15x14x =118 d) x =19
posted on October 15, 2009 
science
its called "carbon".. and the process of determining how old a plant or animal is called "carbon dating"
posted on October 15, 2009 
PHYSICS HELP
Torque is equal to the change in angular momentum divided by the change in time. Initial angular momentum is equal to the rotational inertia times the angular speed. Final angular momentum is zero because it stopped. Hope this helps!
posted on November 13, 2007