# Posts by Kristen

Total # Posts: 487

**biology**

all embryos at some point look exactly the same no matter what mammal it is, for each animal though its at a different time period bc different animals take different amounts of times to grow as an embryo, but every one at some point will look identical

**science**

Which molecule contains ribose has its sugar? where in the cell does DNA become RNA?

**physics**

a cue stick strikes a stationary pool ball, exerting an average forece of 50 N over a time of 7 milliseconds. If the ball has mass .1kg, what speed does it have just after impact?

**AP PHYISCS**

A paratrooper fell 380m from an airplane without being able to open his chute but happened to land in snow, suffering only minor injuries. Assume that his speed at impact was 58 m/s(terminal speed), that his mass (including gear) was 90 kg, and that the force on him from the ...

**science**

the firecracker: there is soo many chemicals combined... Chemical The H-bomb: Thermal and nuclear energy they maybe confusing because they change through out activation

**AP Physics<<help**

A 1.7 kg bundle starts up a 30 degree inlcine with 105 J of Kinetic Eneergy, How far will it slide up in the plane if the coefficient of friction is .3 ?

**I really dont get this. physics**

ok..that helps..thanks

**I really dont get this. physics**

A .35 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (with the spring constant (k) =455 N/m) whose other end is fixed. The mass has a kinetic energy of 10 J as it passes through its equilibrium position (the point at which ...

**AP PHYSICS**

there was a type-o..but you probably saw it...both questions are suppose to say..at what rate...not raite or riate

**AP PHYSICS**

A .35 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (with the spring constant (k) =455 N/m) whose other end is fixed. The mass has a kinetic energy of 10 J as it passes through its equilibrium position (the point at which ...

**AP BIO...PLEASE HELP**

Which of the following statements about NAD+ is false? A). NAD+ is reduced to NADH during both glycolysis and Krebs cycle B). NAD+ had more chemical energy then NADH C). NAD+is reduced by the action of dehydrogenases D). NAD+ can receive electrons for use in oxidative ...

**psychology/science**

what is the full definition of sleep? What are some sleep disorders?

**Reading**

What is the answer to this analogy? join:club::enroll:?

**AP Physics**

An airplane in a horizontal circle at a speed of 130.5556 m/s. If its wings are tilted 40 degress to the horizontal, what is the radius of the circle in which the plane is flying? Assume that the required force is provided entirely by an "aerodynamic lift" that is ...

**AP PHYSICS..so lost**

An elevator and its load have a combined mass of 1550 kg. Find the tension in the supporting cable in Newtons when the elevator , originally moving downward at 11 m/s, is brought to rest with constant acceleration in a distance of 43 m.

**Math**

What is the probability of rolling a six with a standard die, six times in a row?

**physics**

how do i find angular acceleration?

**AP PHYSICS**

The fast train known as the TGV that runs south from Paris, France, has a scheduled average speed of 216 km/h. If the train goes around a curve at teha speed and the acceleration experienced by the passengers is to be limited to .07g, what is the smallest radius of curvature ...

**MATH**

take 35 minus 8 for the adult that's going 35-8=27 she has 27 dollars to spend on children it costs 5.50 for one child to go, so you take 27/5.50 you get 4.9 only four full children can go because you don't have enough money for a fifth one

**Calculus**

draw a tangent line and find the slope of that line, the derivative is equal to the slope of a tangent line at the point

**AP Biology**

The relatioship of structure to funtion is one of the major themes in biology. Describe the structure of enzymes and then expliain how the function (catalysis) is related to structure. Aslo discuss some factors that may affect the activity of the enzyme and how they do so.

**Physics**

We need to be able to find an angle that it is at when it hits the ground

**Physics**

A ball is shot from the ground into the air. At a height of 0.1m, the velocity is observed to be v=7.7i + 6.4j in meters per second (i horizontal, j upward). What is the direction of the ball's velociry just before it hits the ground?

**Statistics**

A vending machine is designed to dispense a mean of 7.6 oz. of coffee into an 8-oz cup. If the standard deviation of the amount of coffee dispensed is 0.4 oz. and the amount is normally distributed, find the percent of times that the machine will: a.) Dispense from 7.4 oz. to ...

**science**

how much does water weigh?

**science**

how much does water weigh?

**Math**

The mean of five whole numbers is 12. If you take away the smallest number, the mean is 16. What is the smallest number?

**physics**

To find part B, plug in the known information into the equation: Vf=Vi+at and solve for Vf, the final velocity is the speed upon which the diver hits the water, since it's at the bottom.

**Math**

Thanks for responding, it really helped.

**Math**

Set Q is defined as odd integers from 1 to 2000. How many ordered pairs (a,b) are there in set Q whereby a<b?

**Thanks**

I would just like to sat thanks to drwls for helping me a bunch with the physics questions...AP physics is pretty hard..thanks again, whoever you are.. I am sure i will be back plenty of times!

**US. History**

tea taxes?

**science**

you shouldnt have waited this long then to actually d oit

**science**

look it up at google ..type in how many mega meters are in a decimeter

**last one i promise....physics**

A startled armadill leaps upward rising .536 m in the first .197 s. What is its initial speed as it leaves the ground? What is its speed at the height f .536m? How much higher does it go?

**science**

7418268 ft^2 x .225 ft of rain = 1669110 ft^3 = 47263930 Liters

**science**

no...bc there is no depth with in an acre, only area, there is no volume, onceyou had the rain, an inch everyhwere, you now have depth

**science**

59531.99999 ft cubed is equal to 1685759 liters

**science**

1.64 inches equal .13666666 feet

**English**

i would say a line or two..then incorporate a quote, you just just use these " ", you can italize it if you want to but you don't have to blah blah blah blah. "This is the Quote" Kristen Showmaker. blah blah blah

**I am soooo lost in physics**

I love you drwls!

**I am soooo lost in physics**

a ball of moist clay falls t the gournd from a height of 12m . It is in contact with the ground for 20.5 ms before coming to rest. What is the average acceleration of the clay during the time it is in contact with the ground?

**physics**

A startled armadill leaps upward rising .536 m in the first .197 s. What is its initial speed as it leaves the ground? What is its speed at the height f .536m? How much higher does it go?

**accounting**

408000

**Law**

chech wikipedia for social host liability

**Physics**

same, bc they don't get greater, and they usually drop in the same place

**physics**

A basketball player standing near the basket to grap a rebound, jumps 62 cm vertically. How much total time does the player speen in the top 15 cm of the jump? How much total time does the player spend in the bottm 15 cm of this jump?

**physics**

A hot air balloon is ascending at the rate of 13 m/s and is 75 m above the ground when a package is dropped over the side. How long does the package take to reach the ground? With what speed does it hit the ground?

**MATH**

you look at the graph and divide your d value by the t value to find the walking rate, if it increase by one the then rate goes down bc you know are walking a second longer to go the same distance, or the slope of the line on the graph would be more steeper

**Macro Economics**

just because the increase of price, the actualy supply will increase, but the movement along the supply curve to a higher quantity supplied would be correct

**Physics**

yes and yes

**AP Physics...ahaha**

A drowsy cat spots a flowerpot that sails first up and then down past an open window. The pot was in view for a total of .43 s, and the top-to-bottom height of the window is 2 m. How high aboe the window top did the flowerpot go?

**math**

a square will always give you the most area , so a 5 by 5 pool

**ALGEBRA 1**

find the slope using the distance and put the points into the point-slope equation y1 - y= m times (x-x1) so if you have the points (3,4) and the slope is 5 then the equation would look like this: 4-y= 5 (x-3) then distrubute the 5 so its 4-y = 5x -15 then solve it for y

**Physics**

thank you SOOOO much, i spent a long time trying to figure this out

**Physics**

A drowsy cat spots a flowerpot that saild first up and then down past an open window. The pot was in view for a total of .43 s, and then top-to-bottom height of the window is 2m. How high above the window top did the flowerpot go?

**AP Physics**

A hot air balloon is ascending at the rate of 13 m/s and is 75 m above the ground when a package is dropped over the side. How long does the package take to reach the ground? With what speed does it hit the ground?

**AP Physics**

A basketball player, standing near the basket to grab a rebound, jumps 62 cm vertically. How much time does the player spend in the top 15 cm of this jump? How much total time does this player spend in the bottom 15 mc of this jump?

**Physics**

A ball of moist clay falls to the ground from a height of 12 m. It is in contact with the ground for 20.5 ms before coming to rest. What is the average acceleration of the clay during the time it is in contaact with the ground?

**Physics**

A startled armadillo leaps upward rising .536 m in the first .197 s. What is its initial speed as it leaves the ground? What is its speed at the height of .536m? How much higher does it go?

**AP Physics**

I still don't get how to get the time it takes to get from 82.5 to 50.3 km/h, i know its a constant deceleration, but i don't know how to get the time it takes to decelerate

**AP Physics**

I still don't get how to get the time it takes to get from 82.5 to 50.3 km/h, i know its a constant deceleration, but i don't know how to get the time

**AP Physics**

I still don't get how to get the time it takes to decelerate from 82.5 to 50.3 km/h, i know its a constant deceleration, but i know how to find either the deceleration or the time

**AP Physics**

To stop a car, you require first a certain reaction time to begin braking. Then the car slows under the constant braking deceleration. Suppose that the total distance moved by your car during these two phases is 56.7 m when its initial speed is 82.5 km/h, and 24.4 when the ...

**Physics**

A hoodlum throws a stone vetically downward with an initial speed of 12.2 m/s from the roof of a building, 28 m about the ground. How long does it take the stone to reach the ground? What is the speed of the stone at impact?

**Math(Geometry)**

Im a freshman just starting geometry...how am i supposed to know this stuff! You guys are lots and lots of help!

**math**

find the sum of the measures of the intieior angles of each polygon. -hexagon -pentagon -quadrilateral -octagon -16-gon -27-gon The key is the sum of the measures. All of these figures have the same total number of degrees in their interior angles. What do you think that is? ...

**Life Science**

Some conifers bear female cones on the top half of the tree and male cones on the bottom half. Why do you think this arrangement of male and female cones on trees is important?

**Science**

Some conifers bear female cones on the top half of the tree and male cones on the bottom half. Why do you think this arrangement of male and female cones on trees is important?

**Stats**

In a study that was highly published doctors discovered that aspirin helps prevent heart attacks. The research project which was scheduled to last 5 years employed 22,000 american physicians (all male). Half took an aspirin tablet 3 times a week while the other half took a ...

**Statistics**

2 samples were collected to determine whether there was a difference between two weight loss methods targeting men. The average weight loss method is provided for the 2 samples along with the respective standard deviations. Is the second method - with an average weight loss of...

**english**

I need help unscambling the letters ooqtisum to make an english word that we get from spanish mosquito

**would someone please check this math**

3 gallons/$5.37 = 8 gallons/$14.32 Is correct!!!

**science**

I NEED help with finding adaptions of field mice. Does anyone know where they live (besides fields) and adaptions they've made? Field mice often come into homes and adapt to a warmer environment and readily available food.

**MATH -BRAIN TEASER- PLEASE HELP**

i do not know

**Science**

Why don't nerve and muscle cells undergo mitosis? Go to the link and scroll way down to G2 Phase for a short answer: http://www.dartmouth.edu/~cbbc/courses/bio4/bio4-1997/02-theCell.html

**Science**

Meat tenderizers contain enzymes. How do these enzymes affect protein in meat? The enzymes break the tendons and muscle to make them more chewable. As I understand it, however, the protein content that is usable in the body is unchanged. The enzyme simply does the job that the...

**hard math question**

When a certain drug enters the blood stream, its potency decreases exponentially with a half life of 6 hours. Suppose the initial amount of the drug present is A (sub 0). How much of the drug will be present after each number of hours? a. 6 b. 24 c. t Thank you so much for ...

**Stoichiometry problem**

I'm stuck and am hoping you can help. Here is the problem: Aqueous solutions of calcium chloride and sodium phosphate react to form solid calcium phosphate and aqueous sodium chloride. How many moles of sodium phosphate are required to react completely with 0.73 moles ...

**English**

I have to write a commentary on the play the glass menagerie where i have to analyze the author's style and my impression on the author. I've never written anything like this before. HELP PLZ!! I had this exact assignment when I was in High School in 1959, and I ...

**human anatomy and physiology**

4. living organisms require energy to function and this includes each and every one of the trillions of cells that constitute the human body. Define in detail and use diagrams appropriate to show how cells extract, use and store energy including but to limited to discussion of...

**human anatomy and physiology**

3. Critical to life is the function of the cell membrane and its ability to move materials across the cell membrane. Define each of the following in detail using diagrams to aid the understanding of the process. a) diffusion b) osmosis c) facilitated diffusion d) active ...

**human anatomy and physiology**

living organisms require energy to function and this includes each and every one of the trillions of cells that constitute the human body. Define in detail and use diagrams appropriate to show how cells extract, use and store energy including but to limited to discussion of ...

**Critical to life is the function of the cell membr**

living organisms require energy to function and this includes each and every one of the trillions of cells that constitute the human body. Define in detail and use diagrams appropriate to show how cells extract, use and store energy including but to limited to discussion of ...

**human anatomy and physiology**

Critical to life is the function of the cell membrane and its ability to move materials across the cell membrane. Define each of the following in detail using diagrams to aid the understanding of the process. a) diffusion b) osmosis c) facilitated diffusion d) active transport

**human anatomy and physiology**

cells are the basic unit of life based on the original cell theory. name and define the function of at least nine organelles of animal cells. You will find a list of 14 cell organelles and their functions (what they do) at: http://library.thinkquest.org/12413/structures.html ...

**human anatomy and physiology**

1. name and define in detail the four organic compound groups that make up the chemistry of living things. Lipids, carbohydrates, proteins, and nucleic acids. See Part IV of http://www.ucmp.berkeley.edu/people/brs/biol1a/Lect2.html for specifics