Friday

January 20, 2017
Total # Posts: 80

**Physics**

A 3 kg book is resting on a table. What force does the table exert on the book?

*November 7, 2016*

**Physics**

A ship is first seen on a radar screen to be 9 km east of the radar site. Some time later, the ship is at 18km northwest. What is the displacement of the ship from the first location it is seen at? 25.2 km (INSERT ANGLE HERE?!?) degrees north of west

*November 5, 2016*

**algebra**

y = 2x-6 y represents Lisa's age. x represents Chris'.

*November 5, 2016*

**Spanish**

B looks correct, yes. A is misspelled, C unconjugated, and D misspelled.

*November 5, 2016*

**Physics**

How did you determine the angle?

*November 5, 2016*

**Physics**

A ship is first seen on a radar screen to be 9 km east of the radar site. Some time later, the ship is 18 km northwest. What is the displacement of the ship from the first location it is seen at?

*November 5, 2016*

**Physics**

A ship is first seen on a radar screen to be 9 km east of the radar site. Some time later, the ship is at 18 km northwest. What is the displacement of the ship from the first location?

*November 5, 2016*

**math**

The model of a new apartment building is 10 in, x 28 in x 18 in. the architect plans for the new building to be 144 times the size of the model. What will the volume and surface area of the new building be when it is completed? 10 x 18 x 28 = 5040 x 144^3 divided by 12 =...

*March 27, 2015*

**Chemistry**

How much work (in J) is required to expand the volume of a pump from 0.0 L to 2.3L against an external pressure of 1.0atm ?

*December 3, 2014*

**spelling**

unscramble the sentence the was about one an west old outlaw film in

*November 29, 2014*

**Physics**

1.895214166 s

*October 26, 2014*

**Math**

What is 15 more than one-third of a number (m)?

*February 18, 2014*

**5th Grade Math**

42 24/25

*November 26, 2013*

**math/science**

need help to learn how to add unlike denominators? 5th grade

*November 19, 2013*

**physics**

What is the wind speed in m/s required to keep a great white shark suspended in midair during a summer day on the California beach? Details and assumptions Model the shark as a horizontal cylinder 6 m long and 1 m in diameter. The air is at a pressure of 1 atm and a ...

*July 23, 2013*

**math**

do u know how I could find this in a way that creates a fractional form?

*March 17, 2013*

**math**

10^(-10log3) How to solve this???

*March 17, 2013*

**math**

would a negative in front of the log cause this?

*March 17, 2013*

**Physics**

0.0075m

*December 31, 2012*

**math 3rd grade**

The question is show how the commutative property of addition works using 2,3,and 5.

*September 25, 2012*

**social studies**

What is the difference between climate and weather?

*March 5, 2012*

**physics**

A(n) 1.62 kg sphere makes a perfectly inelastic collision with a second sphere that is initially at rest. The composite system moveswith a speed equal to one-third the originalspeed of the 1.62 kg sphere. What is the mass of the second sphere

*February 8, 2012*

**English**

When writing a literary analysis on a book series, how to you denote the series title differently than the title of an individual book?

*January 17, 2012*

**Calculus**

Hello, I posted a question earlier but now I'm stuck on the second part of the question. Please help me. Sand is being dumped from a conveyor belt at a rate of 20 cubic ft/min into a pile the shape of an inverted cone whose diameter and height are always the same. Find the...

*November 28, 2011*

**Calculus**

Sand is being dumped from a conveyor belt at a rate of 20 cubic ft/min into a pile the shape of an inverted come whose diameter and height are always the same. (a) Find the rate of increase of the height when the pile is 10ft high. This is a 2 part problem. Please show me how ...

*November 28, 2011*

**history**

self made millionare who started door to door sales

*January 25, 2011*

**science**

how many kinds of different kinds of measurements would you need to make in order to calculate the speed of something????

*January 6, 2011*

**math**

thank you =D

*December 6, 2010*

**math**

what is 1 4/7 divided by 1 5/6

*December 6, 2010*

**physics**

A rock is thrown horizontally from a bridge with a speed of 30.3 m/s. If the rock is 27.2 meters above the river at the moment of release, a)how long the rock is in the air? b)what is the horizontal distance to the point of impact from the point of release? c)what is the speed...

*November 3, 2010*

**physics**

A projectile is fired and lands t = 14 s later on the side of a hill, at a location 1400 m away horizontally and 420 m above its starting point. Find the projectile's initial horizontal velocity vx0 and initial vertical velocity vy0. Assume g = 10 m/s2.

*November 3, 2010*

**math**

what is 1/3 + 1/3 = ?

*October 21, 2010*

**Math**

thanks =D

*October 11, 2010*

**Math**

do you mean 1/4 x y or 1/4 divided by y?

*October 11, 2010*

**Math**

Ineed to find out, one fourth of y. I think is 1/4 not sure! Thanks

*October 11, 2010*

**chemistry**

-1367

*April 20, 2010*

**english**

what are some sub details in education

*November 24, 2009*

**COM 220**

What kinds of statistics, graphs, or illustrations could the author have included in the essay the communication collapse

*November 19, 2009*

**7th grade civics**

Why are federal judges appointed and not elected?

*October 14, 2009*

**math**

a person climbs to the top of the mountain at a rate of 1.5 kl/hr and down the same way at at rate of 4.5 kl/hr. If he was gone for 6 hours, how far did he travel from the top of the mountain ?

*September 17, 2009*

**math**

graph y=-2x and y=-x squared what points do the graphs have in common? Describe how the graphs are different.

*May 25, 2009*

**social studies**

Scientists think adding CO2 to the atmosphere will affect the earth's climate. What effect is predicted?

*February 13, 2009*

**math-calc**

Two sides of a triangle have constant lengths a and b, and the angle between them is theta. What value of theta will maximize the area of the triangle? so far i have the formula and the derivative. A=.5absin(theta) A'=.5abcos(theta) then i set the derivative to zero in ...

*October 26, 2008*

**Calculus**

Two sides of a triangle have constant lengths a and b, and the angle between them is theta. What value of theta will maximize the area of the triangle? so far i have the formula and the derivative. A=.5absin(theta) A'=.5abcos(theta) then i set the derivative to zero in ...

*October 26, 2008*

**Math**

thanks

*July 23, 2008*

**Math**

A student ticket to a flower show costs $6.00 plus a 5% handling fee. The local schools receive a special group discount. A scholl can determine the total cost of tickets by using the formula below. T = Total cost N = Nmber of tickets purchased D = Discount rate T = n(6+6(.05...

*July 23, 2008*

**Math**

Thank you for everything

*July 23, 2008*

**Math**

x over 4 equals 9.2 what is x

*July 23, 2008*

**Math**

120

*July 23, 2008*

**Math**

Find the LCM of 12,24, and 30

*July 23, 2008*

**Math**

would the answer be squared at the end

*July 23, 2008*

**Math**

a can of tennis balls has a height of 12 inches and a radius of 1.5 inches. What is the volume of the can to the nearest tenth

*July 23, 2008*

**math**

find the base of a triangle whose height is 1.7 feet and whose area is 1.87ft2

*July 23, 2008*

**Math**

Write the number that is 19% of 70

*July 23, 2008*

**Math**

sorry i meant 57.70m2

*July 23, 2008*

**Math**

58.70m2

*July 23, 2008*

**Math**

58m2

*July 23, 2008*

**Math**

Find the area of a parallelogram with a base of 6.2 meters and a height of 9.3 meters. round the the nearest tenth

*July 23, 2008*

**Math**

17 quarts

*July 23, 2008*

**Math**

How many quarts are in 4.25 gallons

*July 23, 2008*

**Math**

Pentagon

*July 23, 2008*

**Math**

Name a polygon that has 5 sides

*July 23, 2008*

**Math**

375

*July 22, 2008*

**Math**

find the interest to the nearest cent on a principal of $1,000 borrowed at a rate of 12.5% annually for 3 years

*July 22, 2008*

**Math**

If the pants are not on sale and there is a 6.25% sales tax, how much will Bill pay for the pants

*July 22, 2008*

**Math**

A bag contains 5 red, 5 blue, 5 green, and 5 white marbles. Two marbles are drawn, but the first marble is not replaced. Find P(red, then blue)

*July 22, 2008*

**Math**

If pants are on sale for 30% off, how much will pay if the pants are $19.95

*July 22, 2008*

**Math**

The Andromenia Spiral is a galaxy 2,200,000 light years from Earth. write this distance in scientific notation

*July 22, 2008*

**Math**

Thanks

*July 22, 2008*

**Math**

Bob turned on the air conditioning, and the temperature decreased 8 degrees. write an integer to represent the drop in temperature.

*July 22, 2008*

**math133**

Measure the distance of the diagonal (from one corner to the opposite corner) of the screen on your computer monitor to the nearest tenth of a centimeter or sixteenth of an inch. Measure the height of the screen along the vertical as well. Use the Pythagorean theorem to find ...

*June 15, 2008*

**chemistry**

If 1.00 mol each of carbon dioxide and hydrogen is initially injected into a 10.0-L reaction chamber at 986 degrees Celsius, what would be the concentrations of each entity at equilibrium? CO2(g) + H2(g) „²„³ CO(g) + H2O(g) k = 1.60 for 986 degrees Celsius ...

*March 31, 2008*

**critical thinking**

how can a person distinguish between the prejudicial and nonprejudicial use of rhetorical devices

*October 23, 2007*

**science**

Ice erodes and deposits sedimebts to form ______ what? river beds? Glacial beds? I am not certain of the context here.

*January 11, 2007*

**Physics**

In a labratory experiment, a student measured the period of a swing for a 1 -kg pendulum for varing lengths, as shown below. Length (m) Period (s) 0.05 0.30 0.20 0.90 0.40 1.30 0.60 1.60 0.80 1.80 1.00 2.00 a.) Deterine the period of a pendulm whose length is 0.25 m. b.) Now ...

*June 12, 2006*

**Physics**

Electrons are ejected from a surface with speeds ranging up to 6.0 x 10^5 m/s when light with a wavelength of 400 nm shines on it. a.) What is the work function of this surface? b.) What is the threshold frequency for this surface? c.) What is the deBroglie wavelength of an ...

*June 12, 2006*

**Physics**

A ray of light of frequency 5.09 x 10^14 Hz passes from air into flint glass (n=1.6). a.) If the ray enters the flint glass at an angle of 30*, what is the angle of refraction? b.) What is the critical angle for a ray of light traveling from flint glass to air? c.) What is the...

*June 12, 2006*

**Physics**

An electrostatic force of 5 N exists between two identical point charges, each of mass 0.01 g, placed 4 mm apart. a.) Find the magnitude of each charge. b.) One of these charges is placed into a magnetic field. Assuming that the charge has a speed of 50 m/s and travels a ...

*June 12, 2006*

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