Wednesday

September 2, 2015
Total # Posts: 1,886

**physics**

need help with physcis vector problem Using combining vectors to find displacement problem(BEST answer)? tourist on a jet ski move 1.2km 55 degrees North of E and then 3.15km 70 degrees south of east. determine the jet ski's displacement.
*March 1, 2010*

**physics**

need help with this physics questions a jogger runs with a velocity of 6km/h 25 degrees north west for 35 minutes and then changes direction , jogging for 20 minutes at 4.5km/h 65 degrees east of north. using a vector diagram determine the joggers total displacement and his ...
*March 1, 2010*

**Re:its the end of the world...**

He means he didn't do "calculations"...
*March 1, 2010*

**geography**

cross country is to a skier as a what is to a runner
*February 28, 2010*

**geography**

swimming is to butterfly as what is to dressage
*February 28, 2010*

**geography**

a mountain is to a ski jumper as a what is to a diver
*February 28, 2010*

**geography**

A skull is to rowing as a what is to yachting
*February 28, 2010*

**physics**

A compact car and a trailer truck are both traveling at the same velocity. Which has more kinetic energy? 1. The trailer truck has more kinetic energy. The compact car has more kinetic energy. Both have the same kinetic energy.
*February 26, 2010*

**physics**

A 4.9 g marble is fired vertically upward using a spring gun. The spring must be compressed 8.0 cm if the marble is to just reach a target 29 m above the marble's position on the compressed spring. (a) What is the change in the gravitational potential energy of the marble-...
*February 26, 2010*

**Physics**

If two identical bowling balls are raised to the same height, one on Earth, the other on Mars, which has the larger gravitational potential energy increase? A)The bowling ball on Mars will have the larger gravitational potential energy. B)Both balls will have the same ...
*February 26, 2010*

**Chemistry**

List the following equilibrium solutions in order of decreasing free Ag+ concentration in mixture: 0.1M AgNO3, saturated AgCl, saturated AgBr, saturated AgI, Ah(NH3)2+, and Ag(S2O3)2 3-.
*February 25, 2010*

**physics**

is it 1.6m/s^2
*February 25, 2010*

**physics**

acceleration due to gravity questions when an object is dropped from a height of 10m above the surface of the planet z, it takes 1.2 seconds for the object to reach the surface. what is the acceleration of a falling object near the surface of the planet?
*February 25, 2010*

**Physics**

no... but apparently when an object is falling its acceleration is 9.81m/s^2
*February 25, 2010*

**Physics**

acceleration due to gravity questions Determine the time of fall when an object is dropped if the average velocity of the falling object was 12m/s?
*February 25, 2010*

**Physics**

acceleration due to gravity questions A rock is dropped from a height of 7meters a) what is the average velocity of the rock during its fall b) how long does it take the rock to fall
*February 25, 2010*

**Physics**

Physics 20 acceleration due to gravity questions An object is thrown downwards, hitting the ground with a velocity of 10m/s . it fell for 0.880seconds. At what velocity was the object released.
*February 25, 2010*

**Physics**

A rectangle with sides (a=1m) and (b=2m) has a set of discrete charges at the following locations: upper left: q =1nC lower left: q = 1nC lower right: -2q = -2nC Find the Coulomb force on a charge of q =1nC at the upper right hand side of the rectangle.
*February 24, 2010*

**Physics**

How would i find the total time spent decelerating on a velocity time graph? would it be the parts on the graph with negative velocity like -20m/s
*February 21, 2010*

**Physics**

is it the times where the slope is in the negatives like if it is at a velocity of -20
*February 21, 2010*

**Physics**

how would i find the total time spent decelerating on a velocity time graph
*February 21, 2010*

**Physics**

bob for the time lapsed would that be the total time spent? or am i supposed to subtract both times
*February 21, 2010*

**Physics**

How would i find the average velocity for certain points finding the average velocity between 0.2 hours and 0.4 hours object is at 20m at the 0.2 hours object is at 10km at rest at the 0.4hours
*February 21, 2010*

**Physics**

how to find the average velocity and speed for an entire postion time graph
*February 21, 2010*

**Physics**

How would i find the average velocity for certain points.? finding the average velocity between 0.2 hours and 0.3 hours object is at 20m at the 0.2 hours object is goes down(backwards) to 10m at the 0.3hours
*February 21, 2010*

**Chemistry**

Calculate the number of joules required to melt 57.4g of benzene at 5.5 degrees celsius? The heat of fusion for benzene is 9.87 KJ/mol and specific heat for liquid benzene is 1.63 J/g*deg)
*February 19, 2010*

**Physics**

But you do not need the frictional force to find the total work. Just the dragging force and the displacement.
*February 18, 2010*

**Physics**

Nate, the friction force is equal to mu*N, N is equal to mg-Fsin(31.1) not mg.
*February 18, 2010*

**chemistry **

A gas occupies 10 liters at standard conditions. What volume will it occupy at 20 degrees celsius and 700 torr?
*February 16, 2010*

**Physics**

A pilot stops a plane in 484 m using an acceleration of -8 m/s2. How fast was the plane moving before the breaking began? Thanks.
*February 15, 2010*

**Physics**

use the terms "displacement" and velocity to descibe how uniformly accelearted motion differs from unifrom motion
*February 11, 2010*

**Physics**

which answer is right
*February 11, 2010*

**Physics**

which ones right? Bobby or bobpursley
*February 11, 2010*

**Physics**

Describe the acceleration time graph of a car traveling forward and applying its brakes.
*February 11, 2010*

**shurley english**

What is way in Shurley?
*February 10, 2010*

**math**

How can i find the average Velocity and speed for a position time graph*
*February 9, 2010*

**Physics**

so would the average speed and velocity be the same thing
*February 9, 2010*

**Physics**

thank you verymuch
*February 9, 2010*

**Physics**

i thought slope is the change in y over the change in x
*February 9, 2010*

**Physics**

How can i find the averagee veloity and speed for a postion time graph
*February 9, 2010*

**social studies**

My question is about the American Indians and the Europeans. They signed treaties, forcing people off other people's land, and having wars. My question is.....Can you give me ideas about a question i could ask about this?
*February 9, 2010*

**math**

i am supposed to solve this word problem using system of quatino methods The annual cost of owning and opearting a car, C dollars, is a linear function of the distance, d kilometers, it is driven. C=md+b the cost is $4600 for 10 000km and $9100 for 25 000km. Determien the ...
*February 8, 2010*

**physics**

Help with physics graph sketch? sketch a postion time graph for a student stopping at the school, which 5km east of home how would the graph look like
*February 7, 2010*

**Economics**

I believe the answer is -349. Exports-imports
*February 7, 2010*

**physics**

i dont get how to find the time
*February 7, 2010*

**physics**

Need help with this short physics question there is a race betwen person A and person B. They both start at the same time, but B initial position is 10m left of peron A. person A travels 100 meters right in 20 seonds, Person Btravels 112.5 meters right in 15 seconds. what is ...
*February 7, 2010*

**Physics**

Two children on racing bikes start from the same refrence point. child A travels 5.0 meters per second right and child B travels 4.5 meters per second right. howmuch farther from the oint of origin is child a than child b after 5 seconds
*February 7, 2010*

**physics**

sketch a postion time graph for a student walking east with a constant velocity how would that look
*February 7, 2010*

**physics**

i am supposed to sketch a postion time graph for a bear starting at 1.2meters from a refrence point,walking slowly away at a constant velocity for 3 seconds stopping for 5 secods, backing up at hlad the speed for 2 seconds, and finally stopping. how would it look like on a graph
*February 7, 2010*

**physics**

i am supposed to sketch a postion time graph for a bear starting at 1.2meters from a refrence point,walking slowly away at a constant velocity for 3 seconds stopping for 5 secods, backing up at hlad the speed for 2 seconds, and finally stopping. how would it look like on a graph
*February 7, 2010*

**physics**

For an object travelling at a constant velocity,what quantity of motion remains the same over equal time interval?
*February 7, 2010*

**Math**

need help rearanging this formula T= 2pie sqrt(m/k solve for k is this right k= T^2/m 4pie^2
*February 4, 2010*

**math**

need help reearing formula T= 2pie sqrt(m/k solve for m is this right k= T^2/m 4pie^2
*February 4, 2010*

**math**

Need help converting 9.4 x 10^2 m/s^2 to cm/minute^2 this is what i got so far 940 x 10^2 x 3600 =3.4 x10^8 cm/min^2 is it right
*February 3, 2010*

**Health Care**

why is it important too individualize an integrative treatment plan?
*February 3, 2010*

**Math**

a stands for atto hs stands for hectosceonds n stands for nano L stands for liters T stands for Tera
*February 2, 2010*

**Math**

Can someone help me convert this 0.908 aL/Tmin to nL/hs
*February 2, 2010*

**Math**

can someone show me a step by step guide converting this please 2.483 X 10^-7 pm^4kg/s^2 to dam^3mg/day^2
*February 2, 2010*

**physics**

for A= 1/2 (a+b)h find h is this right h= A/(1/20(a+b)
*February 2, 2010*

**physics**

i need help sovling for these variables(i know that i am supposed to solve usign opposite operartion but i keep getign most of them wrong. A= 1/2 (a+b)h find a A= 1/2 (a+b)h find h T= squareroot I find I V= 4/3pier^2 find r
*February 2, 2010*

**Phyisics**

i need help sovling for these variables(i know that i am supposed to solve usign opposite operartion but i keep getign most of them wrong. A= 1/2 (a+b)h find a A= 1/2 (a+b)h find h T= squareroot I find I V= 4/3pier^2 find r
*February 2, 2010*

**Physics**

i need help sovling for these variables(i know that i am supposed to solve usign opposite operartion but i keep getign most of them wrong. A= 1/2 (a+b)h find a A= 1/2 (a+b)h find h T= squareroot I find I V= 4/3pier^2 find r
*February 2, 2010*

**englsih**

i need this paragraph edited Secondly, the previous action in the play shows conflict of interest between the younger daughter and her older father. For example, during a conversation between the father and the daughter, there is clear proof of Japanese strong culture and ...
*February 2, 2010*

**Calculus/physics**

Calculate the work (in joules) required to pump all of the water out of the tank. Assume that the tank is full, distances are measured in meters, and the density of water is 1,000 kg/m^3. Water exits from a small hole at the top of the rectangular box. The dimensions are 8 m, ...
*February 2, 2010*

**Calculus**

Calculate the work (in joules) required to pump all of the water out of the tank. Assume that the tank is full, distances are measured in meters, and the density of water is 1,000 kg/m^3. Water exits from a small hole at the top of the rectangular box. The dimensions are 8 m, ...
*February 1, 2010*

**physics**

explain the relationship between contours of constant potential and the electric field direction. why is the electric field a vector quantity while the electric potential is a scalar?
*February 1, 2010*

**physics**

help??
*February 1, 2010*

**physics**

how do equipotential lines differ in the patterns they make for different geometries?
*February 1, 2010*

**calculus**

Calculate the work (in joules) required to pump all of the water out of the tank. Assume that the tank is full, distances are measured in meters, and the density of water is 1,000 kg/m^3. Water exits from a small hole at the top of the rectangular box. The dimensions are 8 m, ...
*February 1, 2010*

**calculus**

That's supposed to be a rectangular box, where the length is 8 m, the width is 4 m, and the height is 5 m.
*January 31, 2010*

**calculus**

Calculate the work (in joules) required to pump all of the water out of the tank. Assume that the tank is full, distances are measured in meters, and the density of water is 1,000 kg/m^3. Water exits from a small hole at the top of the rectangular box. The dimensions are 8 m, ...
*January 31, 2010*

**physics**

false
*January 31, 2010*

**math**

if the perimter is 24 and each unit is 1 brick long. how many bricks will i need
*January 28, 2010*

**Calculus**

What is symmetric around the y-axis? This is confusing because I don't really know how to draw the solid. First it says the solid has the base of R. So does that mean R should be on the x-axis? But how do you find out the length of the side of the square? Is one side of ...
*January 28, 2010*

**Calculus**

R is the region in the plane bounded below by the curve y=x^2 and above by the line y=1. (a) Set up and evaluate an integral that gives the area of R. (b) A solid has base R and the cross-sections of the solid perpendicular to the y-axis are squares. Find the volume of the ...
*January 28, 2010*

**Physics**

amm i got an answer of 4.08 for the time in the air I divided 20/9.8=2.04x2=4.08 For the rise I do not multiply by 2 t right? I got answer of 20.4 I am very glad that you were able to help me with this problem
*January 27, 2010*

**Physics**

An arrow is shot straight up in the air with speed of 20m/s. How long is t in the air? How high will the arrow rise?
*January 27, 2010*

**Physics**

An arrow is shot straight up in the air with speed of 20m/s. How long is t in the air? How high will the arrow rise?
*January 27, 2010*

**Calculus**

R is the region in the plane bounded below by the curve y=x^2 and above by the line y=1. (a) Set up and evaluate an integral that gives the area of R. (b) A solid has base R and the cross-sections of the solid perpendicular to the y-axis are squares. Find the volume of the ...
*January 27, 2010*

**Government**

In a democracy, those who are accountable to the people for what is done in their name. Which form of government, presidential or parliamentary, comes closer to this idela? why?
*January 25, 2010*

**Math 7th grade**

34/6=(2x+1)/3
*January 24, 2010*

**Trigonometry**

You are stationed at a radar base in Warner Robins, GA and you observe an unidentified flying object at an altitude of 2000 m flying towards your radar base at an angle of 20 degrees. How far away from the radar base is that plane (hypotenuse)?
*January 24, 2010*

**Trigonometry**

Rapunzel is located in the highest room f a tower, and Prince Charming has come to save her is 100 m away from the base of the tower. If the Prince estimates that he is looking at Rapunzel's room at an exact 45 degree angle of elevation. How long must Rapunzel's hair ...
*January 23, 2010*

**Trigonometry**

so it's 2100 ft ?
*January 23, 2010*

**Trigonometry**

A preseason game Tennessee Titans punter A.J. Trapasso hit the giant HD TV screen suspended above the field at the new Cowboys stadium. At the time of the punt A.J. was 30 yards away from the edge of the tv screen (the tv screen starts at the 40 yard line, and AJ was at the 10...
*January 23, 2010*

**Trigonometry**

John is an Atlanta Hawks fan with seaon tickets for the past 5 years.John estimates that his seat is about 50 ft higher than the basketball court and he has calculated that he looks onto the court at an angle of depression of 20 degrees. How far away is the court from John'...
*January 23, 2010*

**Math**

thank you
*January 21, 2010*

**Math**

rewrite the equation so that y is a function of x 2-y/6=8x
*January 21, 2010*

**Chemistry**

does limiting reagents react wuth all the reacnats? Is the limiting reagent used to calculate the amount of products?
*January 21, 2010*

**Chemistry**

list in order from most ionic to most covalent kbr, Hcl, NaF, N2,
*January 21, 2010*

**Chemistry**

why is it still intact? is it because of the intermolecular forces
*January 21, 2010*

**Chemistry**

when does water after being ecaported turn to water vapor instead of H+ and O ions? is it becasue of the intermolecular forces
*January 21, 2010*

**chemistry**

what is the concentarion of hyrdoxide ions in 250ml 1.1mol/l of calcium hydroxide
*January 21, 2010*

**biology**

why does water after evaported not turn to H+ ions. is it be cause of the intermolecurar and intramolecuar forces?
*January 21, 2010*

**Biology**

does energy and matter cycle through an ecosystem
*January 21, 2010*

**10th grade**

find the slopes for all four side J(-4,-1) K(-7,-4) L(2,-10) M(5,-7)
*January 21, 2010*

**chemistry**

thanks.. i had probmels with the subscripts and coefficents. i didnt know you had to muliply it
*January 20, 2010*

**chemistry**

I need help finding the net and total ionic for this reation. i know the steps but i keep getting the wrong answer. Al2(SO4)3 (aq) + 6 NaOH (aq) ----> 2 Al(OH)3 (s) +3 Na2SO4 (aq) Category
*January 20, 2010*

**7th grade**

8)>>>Write a group of 3 rows for girl names and and 7 columns for colors Each girl chooses the same color (easiest) The only color they can choose is red. (1/4)^3=1/64 . 9)>>>> P(two girls choose the same color, and the third chooses a different color) for...
*January 20, 2010*

**1st grade**

thanks this was very helpful
*January 19, 2010*