Monday

January 16, 2017
Total # Posts: 402

**pure physics**

a stone weighs 0.25N in air and o.20N when completely immersed in water. what is the the up thrust on the stone?

*January 10, 2017*

**algebra 1**

LaTasha was presented with the following data set and argued that there was no correlation between x and y. Is LaTasha correct? Use the regression equation to explain your reasoning.

*November 29, 2016*

**math**

how do you express the side length of a square as a radical, in simplist form, if the area is 252 ft. squared?

*October 30, 2016*

**Math help please!**

Sorry my husband posted too ha! We think alike! It must be a common core thing because its a problem on homework from school.

*October 18, 2016*

**Math help please!**

New Orleans has highest elevation of 25, lowest -8. Long Beach has highest 360, lowest -7. Which city has an average elevation of -2? How do you calculate that?

*October 18, 2016*

**science**

A person is travelling in the east direction with a speed of 2 km/hr with respect to the ground. he finds that the wind seems to blow from north. When he doubles his speed, the wind appears to come from north-east direction. determine the velocity of wind.

*September 27, 2016*

**english literature**

what is the significance of the odan tree in africa?

*September 22, 2016*

**Math**

A grocery store sells 3 pounds of grapes for $3.45 another grocery store sells 5 pounds of grapes for $5.75 which equation represents the price of grapes

*September 19, 2016*

**Calculus**

Engr. Ramos is walking at the rate of 5m/sec along the diameter of of a circular courtyard. A light at one end of a diameter perpendicular to his path casts a shadow on the circular wall. How fast the shadow from the man to the center of the courtyard is 1/2 r ,where r is the ...

*September 11, 2016*

**Maths**

4 and 9

*September 11, 2016*

**Math**

30 and 48 Multiply the ratio by 6

*August 30, 2016*

**Math**

Compute the area 8 ft x 14 ft =112ft^2 Then, If one pint = 40 ft^2 112ft^2/40ft^2 = 112/40 pints (calculate this in your calculator)

*August 30, 2016*

**Calculus**

a cone has an altitude of 12 cm and a base radius which increases at the rate of 3 cm per minute. When the radius is 6 cm,how fast is the vertex angle increasing?

*August 30, 2016*

**Science**

Use the formula P1V1/T1 = P2V2/T2 So the answer is 2.1L

*August 30, 2016*

**math homework**

C(7,-4) radius is 4

*August 30, 2016*

**Calculus**

A statue 5m high is standing on a base 8m high. Is an observer's eye is 2.5 m above the ground, how far should he stand from the base of the statue in order that the angle between his lines of sight to the top and bottom of the statue be a maximum.

*August 29, 2016*

**physics**

A 500g ball moving at 72 km/h is stopped by a player in 2 sec calculate a) initial and final momentum b) force applied by the player

*August 15, 2016*

**Home Economics**

What are the three main areas of home economics?

*June 11, 2016*

**english**

Because is very important

*April 15, 2016*

**Biology ASAP**

What is the scientific name ( genus and species level) of star fish, jelly fish, silk spider, mouse, and earth worm

*February 11, 2016*

**U.S. History**

i think C is incorrect

*January 4, 2016*

**PLZ Check my Science Project's summary?! -- UPDATE**

ALSO, this project is overdue so i need this answered ASAP so i can turn it in TODAY! - Natasha

*January 4, 2016*

**PLZ Check my Science Project's summary?!**

The following r the instructions to my Project: - Compose a scientific summary of your method, observations, data, and conclusions. In addition, be sure to answer the questions below in your report. 1. Why does the first method for determining volume work only for a regular-...

*January 4, 2016*

**U.S. History**

Sorry, I agree Ms. Sue.... A is the answer. My bad!

*January 4, 2016*

**U.S. History**

I would say C: He thought the future monarchs would abuse power.

*January 4, 2016*

**Science Project Help**

PS, 1st method of determining volume is using a formula, 2nd method is the DISPLACEMENT method.

*January 4, 2016*

**Science Project Help**

Hello, My science project is asking me to "compose a scientific summary of your method, observations, data, and conclusions" on determining the volume of both regular & irregular objects. They wanted me to answer the 4 questions below in my summary: 1. Why does the ...

*January 4, 2016*

**mathematics**

Ruth has $130 in all. Kevin has $115 in all. If Ruth has 1 and a half times as much money as kevin, how much money does ruth have?

*January 3, 2016*

**Statistics**

Across the USA, results for these exams are normally distributed. What does that mean and why is this the case? If you were to create a histogram of all GRE scores, what would you expect the histogram to look like? Would it be symmetrical? Would it be bell shaped? How many ...

*December 16, 2015*

**Thank You!**

Thanks to you both 4 helping me!

*December 11, 2015*

**Math TRUE or FALSE Help**

You do not need to flip the inequality sign when solving the inequality -3t + 7 ≥ 9. TRUE or FALSE? I'm not that great at knowing when to flip inequality signs... Can someone help me ASAP? Thank you for your assistance in advance. Nic

*December 11, 2015*

**Pure Math**

can someone give me an idea on how to plot the stem and leaf of the following data , what would be the stem and leaf (the key ) ... 325671 425384 549680 858000 1315819 2001468 2061085 2943472 4246809 4605501 5107970 5415949 5451270 5627235 7245677 8139631 8506889 9346129 ...

*November 21, 2015*

**physics**

Calvin is pulling Hobbes on his sled with a force of 45 N [30o above the ground]. The mass of Hobbes and the sled is 18 kg and the coefficient of friction between the sled and the ground is 0.25. Determine a) the net force in the vertical. in this case is the net force going ...

*October 24, 2015*

**physics**

1. Calvin is pulling Hobbes on his sled with a force of 45 N [30o above the ground]. The mass of Hobbes and the sled is 18 kg and the coefficient of friction between the sled and the ground is 0.25. Determine a) the net force in the vertical. in this case is the net force ...

*October 23, 2015*

**Physics**

When the Sun is directly overhead, a hawk dives toward the ground at a speed of 2.18 m/s. If the direction of his motion is at an angle of 25.1◦below the horizontal, calculate the speed of his shadow along the ground. Answer in units of m/s

*October 11, 2015*

**Physics**

In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 37.1 m/s in a time of 6.28 s. The mass of the car and riders is 8.88 × 103 kg. Find the average net force exerted on the car and riders by the magnets.

*October 8, 2015*

**Physics**

Two soccer players start from rest, 30 m apart. They run directly toward each other, both players accelerating. The first player’s acceleration has a magnitude of 0.49 m/s2. The second player’s acceleration has a magnitude of 0.43 m/s2. (a) How much time passes ...

*September 29, 2015*

**Physics**

In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 6.20 m/s in 3.56 s. Assuming that the player accelerates uniformly, determine the distance he runs.

*September 29, 2015*

**AP Physics**

A car enters the freeway with a speed of 6.9 m/s and accelerates uniformly for 2.7 km in 3,7 min. How fast is the car moving after this time? Answer in units of m/s.

*September 28, 2015*

**AP Physics**

A car enters the freeway with a speed of 6.9 m/s and accelerates uniformly for 2.7 km in 3,7 min. How fast is the car moving after this time? Answer in units of m/s.

*September 27, 2015*

**English**

A speech about traditional african marriage is an advantage for men only,not women

*July 23, 2015*

**English**

In his literary work, A Long Way Gone: Memoirs of a Boy Soldier, Ishamael Beah uses symbols to underscore his central theme of oppression and/or freedom. for this thesis statement, the three symbols I wana use are Cassettes, moon, and AK-47 gun. Are these symbols correct?

*July 15, 2015*

**English**

Oh okay. thankx

*July 14, 2015*

**English**

yes i did, but i don't understand what they mean by human spirits triumph.

*July 14, 2015*

**English**

In the novel In the country of men, do the human spirits triumph.

*July 14, 2015*

**English**

would symoblism, voice, and stylostic devices work?

*July 8, 2015*

**English**

How is Ernest Gaines effective as a storyteller in A Lesson Before Dying? Are there any stylistic elements from the novel to support that?

*July 8, 2015*

**English**

okay great. thankyou so much for your help. means a lot.

*July 5, 2015*

**English**

Lester B. Pearson’s speech about Canada’s national flag is very effective because he uses various rhetorical devices and patriotic emotional appeal which captures lots of Canadian citizens’ attention. He also refers to Canada’s history and all the trouble ...

*July 5, 2015*

**English**

sure i will use sorry for that. I think it is effective because he uses various rhetorical devices and patriotic emotional fallacy.

*July 5, 2015*

**English**

can you tell me what is pesrson's persuasive goal? and what arguements does he uses to pursue his purpose?

*July 5, 2015*

**English**

In one well-constructed paragraph, explain the overall effectiveness of this speech. Be sure to identify what Pearson’s persuasive goal and what arguments he uses to achieve his purpose. Be sure to offer your own opinion, with evidence from the text, on whether he is ...

*July 5, 2015*

**chemistry**

Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 43.9 g of hexane is mixed with 57. g of oxygen. Calculate the minimum mass of hexane that could be left over by the chemical reaction. Round your answer to significant ...

*March 7, 2015*

**Math**

Which of the following correctly lists angle pairs that have the same sums of 180 degrees & 90 degrees? A. adjacent angles, congruent angles B. complementary angles, vertical angles C. supplementary angles, complementary angles*** D. vertical angles, adjacent angles Is it C?

*February 25, 2015*

**physical science**

490 / 2= 245.

*February 25, 2015*

**physics**

1.A 910 kg racecar starts from rest and reaches a speed of 25.1 m/s in 0.48 s. a)What is the average acceleration of the racecar during this time period? b)What is the magnitude of the net force on the racecar? for a) I know: Mass= 910kg V=25.1m/s T=0.48s and I know to find A...

*February 19, 2015*

**math**

a shopkeeper after allowing a discount of 10% on the market price makes a profit of 8%.what percent above the cost price is it market.

*January 14, 2015*

**physica science**

when will the resultant of the two vectors be at maximum when two forces of 5n and 7n act on an object?

*January 14, 2015*

**chem**

i got the answer as four tablets.Is it correct?

*November 17, 2014*

**business math**

1476.92

*June 4, 2014*

**English**

is it A?

*April 13, 2014*

**English**

its A

*April 13, 2014*

**Math**

How do you solve 6k-8=k+2???

*March 19, 2014*

**Math**

two angles are vertical. if angle A is 37 degrees, what is the measure of angle B?

*March 19, 2014*

**Math**

Two angles are supplementary.One angle measures 2 more than 3 times the other angle.what is the measure of each angle?

*March 19, 2014*

**Math**

A 12-foot ladder is leaning against a wall. The base of the ladder is 4 feet from the wall. How tall is the wall?

*March 19, 2014*

**English**

1-2. My uncle decided to splurge and _____with a country club because golf is his favorite____.(affiliate,deficit) 3-4. Gail didn't ____from smoking cigarettes until her employer made not smoking ____.Keeping her job was a very good incentive to get her to quit.(agnostic, ...

*March 18, 2014*

**math**

Social Security: 2821 Medicare: 659.75

*March 14, 2014*

**math**

7798.80

*March 14, 2014*

**math**

629.97

*March 8, 2014*

**Chemistry: HELP! PLEASE**

a) Addition of Na2S2O3 to I2+I-->I3 in an aqueous layer will turn the solution clear and colourless. Write an equation explaining this observed colour. b) Addition of Na2S2O3 to I2+I-->I3 in an varsol layer will turn the solution pink. Write and equation explaining this ...

*March 2, 2014*

**Chemistry**

I saw yellow thick cloudy liquid but no precipitate

*March 1, 2014*

**Chemistry**

Based on your observation, how would you precipitate BaCrO4 (s) from a solution of Ba(NO3)2 and K2Cr2O7 2-? Need to show chemical equation and explain.

*March 1, 2014*

**Math**

What equation cannot be solved and why?

*February 7, 2014*

**chemistry**

Divers know that the pressure exerted buy the water increases about 100kpa with every 10.2 m of depth. This means that at 10.2 m below the surface, the pressure is 201 kpa; at 20.4 m , the pressure is 301 Kpa; and so forth. Given that the volume of a balloon is 3.5L at STP and...

*February 7, 2014*

**English**

I'm doing a presentation on these vintage advertisement. (.)vh1(.)com(/)celebrity(/)bwe(/)images(/)2010(/)08(/)Skype-Retro-Ad(.)jpg This advertisement was produced by a Brazilian advertising agency for Maximidia Seminar (a seminar on communication) on 2010. I need to ...

*December 10, 2013*

**math**

6 ⅚ – 17/18 Solve the following problem and convert to lowest terms (mixed number)

*October 26, 2013*

**reading skills**

(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...

*October 13, 2013*

**Mathematics**

If a 75 kg person pedals a Monarch leg ergometer at 50 rpm, how much resistance is needed to work at a level of 11 METs?

*October 6, 2013*

**Mathematics**

What stepping rate is needed if a person wants to work at a Vo2 of 45 mL/kg/min using a bench that is 34 cm high?

*October 6, 2013*

**Math**

If a 60 kg man is riding a Monarch ergometer at 50 rpm and the resistance is 2.0 kg, what is the power output?

*October 6, 2013*

**Math**

Who is working harder, Fred running a 10 min mile pace at a 10% grade or Pete who is 55 kg, cycling on a Monarch ergometer with a resistance of 2.5 kg and a pedal rate of 60 rpm?

*October 6, 2013*

**Math**

If an individual wants a work of 1300 kg m/min with a cycling speed of 300 m/min, how much resistance is needed?

*October 6, 2013*

**Math**

Determine the MET level for each activity for a 70 kg person. a.) 18 steps/min, 25 cm/step b.) 6 mph, 12% grade c.) 750 kg m/m on a Monarch ergometer d.) Arm cranking at 350 kg m/min on a Monarch ergometer

*October 6, 2013*

**Math**

What is the MET level of a person that is running on a level treadmill at 6 mph?

*October 6, 2013*

**Math**

What is the functional capacity in METs and Vo2 (mL/kg/min) of a 70 kg man who completed Stage V (3mph, 12.5% grade) of a Balke TM test?

*October 6, 2013*

**Math**

A patient must exercise a MET level of 8. What grade is needed if the speed is 3 mph?

*October 6, 2013*

**Chemistry**

How many grams of nitric acid (HNO3) must be dissolved in 740 mL of water to make a solution with a pOH = 8.3?

*May 12, 2013*

**Maths**

The second term in the expansion of (1-x)(1+2x)Λn is 19x. Find the value of n

*May 12, 2013*

**math**

The second term in the expansion of (1-x)(1+2x)Λ4 is 19x. Find the value of n

*May 10, 2013*

**math**

A rectangular plot is bounded at the back by a river. No fencing is needed along the river and there is to be an opening in front of about 24 meters. If the cost of fencing in front is $1500 per meter and the cost of fencing the sides is $1000 per meter, find the dimensions of...

*April 25, 2013*

**math**

A bag contains 5 red balls and 7 green balls . A ball is picked at random , its color is noted and it is given out . The bag is shaken and a second selection is made. A. Draw. Tree diagram to illustrate thr information. B. Calculate the probability that both balls are red

*April 24, 2013*

**Math**

A customer is buying a $100 drill and two $15 drill bit stes. The customer uses a $50 gift card for a portion of thier bill. How much cash will the customer pay (before taxes)?

*April 15, 2013*

**Algebra 2**

a.) the number of terms b.) the first term c.) the last term d.) evaluate the sum 5 E (3+n) n=1 8 E 2n/3 n=1 I don't know what the symbol is for the equation but it looks like an "E"

*February 26, 2013*

**physics**

A spherical surface completely surrounds a collection of charges. Find the electric flux (with its sign) through the surface if the collection consists of (a) a single +1.80 × 10-6 C charge, (b) a single -8.20 × 10-6 C charge, and (c) both of the charges in (a) and (b

*February 25, 2013*

**physics**

A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 12300 N/C. The mass of the water drop is 4.71 × 10-9 kg. How many excess electrons or protons reside on the drop?

*February 25, 2013*

**physics**

A string has a linear density of 8.1 x 10-3 kg/m and is under a tension of 200 N. The string is 2.9 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown in the drawing. Determine the (a) speed, (b) wavelength, and (c) frequency of the traveling ...

*February 11, 2013*

**physics**

A container holds 2.2 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 7.7x10-3 kg bullet with a speed of 650 m/s. What is the Kelvin temperature of the gas?

*January 28, 2013*

**physics**

The flywheel of an engine has a moment of inertia of 24 kg*m^2. a) if the radius of the wheel is 0.6m, what force is required to accelerate the wheel from rest to an angular velocity of 300 rpm in 6 seconds? b) how many turns does it make during this time?

*December 12, 2012*

**physics**

The flywheel of an engine has a moment of inertia of 24 kg*m^2. a) if the radius of the wheel is 0.6m, what force is required to accelerate the wheel from rest to an angular velocity of 300 rpm in 6 seconds? b) how many turns does it make during this time?

*December 12, 2012*