Saturday

April 30, 2016
Total # Posts: 2,384

**Algebra**

The goal is to shoot down my friends drone with a paintball. We need to know how quickly my paintball will reach a maximum altitude. And we need to know if my paintball will even reach the height required to reach the drone. His drones maximum altitude is 1200 ft. A paintball ...
*April 29, 2016*

**Physics**

A 4.7 gram feather falls with a constant speed of 1.4 m/s. What is the force of air resistance on the feather?
*April 21, 2016*

**Physics**

In a twist of tradition, you pull a sled horizontally with a force of 3.3 N on a frictionless surface of snow while your dog is sitting inside the sled. If the sled accelerates at 1.27 m/s 2, and the sled’s mass is 2.8 kg, what is the mass of your dog?
*April 21, 2016*

**Physics**

A ball travelling at 9.5 m/s is stopped by catching it by hand over a distance of 0.24 m. What is the mass of the ball if the force required to stop it over this distance is 6.4 N?
*April 21, 2016*

**Physics**

A 7.5 kg box is pushed across a floor by pushing forward and down, with a force of 11 N at an angle 64 degrees from the horizontal floor. What is the normal force exerted by the floor onto the box?
*April 21, 2016*

**Math**

calculate the rate percentage per year if $3240 is paid as intrest on 12000 for 2 and a half years. whats percentage pre year?
*April 8, 2016*

**math**

calculate the rate percentage per year if $3240 is paid as intrest on 12000 for 2 and a half years
*April 8, 2016*

**Math**

Why is it a good idea to put one nickel, one penny,and one quarter in a different order to find the total?
*March 29, 2016*

**Trig**

Find the algebraic expression that is equal to sec theta - cos (-theta)
*March 24, 2016*

**Trig**

find the algebraic expression that is equal to sin (-theta) sec(-theta) cot(-theta)
*March 24, 2016*

**Math**

Express 2x^3-9/x^3+6x^2+8x as partial fractions
*March 22, 2016*

**physics**

A net force of 1.6×10−15 N acts on an electron over a displacement of 7.1 cm, in the same direction as the net force. (a) What is the change in kinetic energy of the electron (joules)?
*March 21, 2016*

**Algebra **

The difference between two positive numbers is 9. If four times the larger number is ten times the smaller number, what is the larger number?
*March 15, 2016*

**math**

triangle abc is reflected over the y-axis. What are the coordinates of the reflected triangle? Describe in words what happens to the x-coordinates and y-coordinates of the original triangle's vertices as a result of this reflection? I can't figure out how to describe ...
*March 15, 2016*

**chemistry**

Consider the unbalanced reaction Ti(s) + Cl2(g) --> TiCl4(s) When 10.3 g of Ti react with 12.7 g of Cl2, 16.2 g of TiCl4 are obtained. The theoretical yield of TiCl4 is , the limiting reactant is and the percent yield is %. (Remember to use correct sig figs)
*March 4, 2016*

**Biology**

Reaction to an external stimulus requires sensing the stimulus. The five senses (hearing, sight, taste, smell, and touch) are used to detect the stimulus. The nervous system processes the information coming in from the senses and helps drive the responding behavior. For ...
*March 4, 2016*

**Biology**

The major way of intercellular communication uses messenger substances (hormones) that are secreted by signal-producing cells and are registered by target cells. All cells produce and receive multiple, diverse signals. For example, Autocrine signals are produced by signaling ...
*March 4, 2016*

**educational tec connections academy**

i also kind of agree but i also think its A
*February 25, 2016*

**Art**

Ketchup is a non-traditional material, but the artist used it in his protest piece against fast food restaurants because of it's ability to a. resist decay b. convey a message •• c. deteriorate quickly d. attract flies What did the broken glass in Anselm Kiefer&#...
*February 1, 2016*

**Art**

Never main I got D
*February 1, 2016*

**Art**

I got A but I'm not sure
*February 1, 2016*

**Art**

Ancient native Americans chose willow strips to make baskets because they were easy to blend and A-east to find •• B-rare and valuable C-multi-colored D-waterproof Correct me plz
*February 1, 2016*

**Art**

Correct me plz A sculptor creates a bust of a famous politician out of marble and places it in the outdoor courtyard of the capitol building. Why did he chose marble? A. he wanted to honor the politition by using expensive material. b. marble is cheap and east to find •&#...
*February 1, 2016*

**Maths**

I'm really getting stuck, I've spent a day trying to figure this out, but don't understand. Please could someone help me. Eph = hcT/b I need to rearrange to make b the subject and show and express each term as base SI units
*January 18, 2016*

**Math literacy,geography,tourism,bisiness studies**

Yes
*January 17, 2016*

**Math**

Never main it was C.49m
*January 13, 2016*

**Math**

2. A 21 meter tall tree near a building casts a shadow that is 24 meters long. The building casts a shadow that is 56 meters long. what is the height of the building? 21/24 = x/56 x = 56*21/24 = 49 m..........c -------------------------- a. 30m •• b. 64m c. 49m d. 72m
*January 13, 2016*

**Math Plz Correct Me!!**

Hold on I'm really sure it's A not B
*January 12, 2016*

**Math Plz Correct Me!!**

Correct me
*January 12, 2016*

**Math Plz Correct Me!!**

I'm really sure it's B
*January 12, 2016*

**Math Plz Correct Me!!**

Which ratios form a proportion? 3/15, 12/55 8/24, 12/35 5/18, 25/90•• 4/11, 16/25 Which ratio form a proportion with 9/15? 6/10 16/21 36/50•• 45/70
*January 12, 2016*

**Math**

I think 3 is D
*January 12, 2016*

**Math**

Can someone check my answers!!
*January 12, 2016*

**Math**

1. Garret is 64 inches tall. How many centimeters tall is he? Round your answer to the nearest tenth of a centimeter. 1 in. = 2.54 cm A. 25. 2 cm B. 162.6 cm •• C. 156.8 cm D. 86.4 cm 2. A jug of milk holds 4 quarts. How many liter of milk does the jug hold? Round ...
*January 12, 2016*

**Math**

What's the area of a rectangle whose perimeter is 30 cm and the longest side is 4 times longer than the shortest?
*January 12, 2016*

**Math**

Thanks for your help!!:)
*January 12, 2016*

**Math**

Which typing time is the fastest? 220 words in 8minutes 600 words in 12 minutes •• 350 words in 10 minutes 225 words in 5 minutes
*January 12, 2016*

**Math**

So it would be A
*January 12, 2016*

**Math**

Write the ratio as a unit rate. 8 meters in 10 seconds A. 0.8 meter per second B. 1.125 meters per second C. 2 meters per second•• D. 80 meters per second
*January 12, 2016*

**Math**

For the last one woun't it be B
*January 12, 2016*

**Math**

Which ratio is equivalent to 4/16 A. 2:4•• B. 6 to 20 C. 8:32 D. 12 to 64 Write the ratio as a unit rate. 286 miles in 5 1/2 hours A. 36 miles per hour B. 52 miles per hour •• C. 57.2 miles per hour D. 114.4 miles per hour Which typing time is the fastest? ...
*January 12, 2016*

**Math**

Which ratio is equivalent to 3/7? A. 6 to 10 B. 9:21 •• C. 12/35 D. 7 to 3
*January 12, 2016*

**Math**

Write an inequality to model The situation the number n of the people who attended the game was at least 50 A. N > 50 B. N < 50•• C. None of the above
*January 12, 2016*

**ChemistryHELP!!**

HELP! Thanks
*January 11, 2016*

**Chemistry**

I'm confused on how to do these. Please show and explain how to do these. Test/quiz may be tomorrow. Pop Quiz!!! How do you calculate the percent composition of each of the following compounds? a.) Magnesium hydroxide b.) Calcium Cyanide c.) Nickel (ii) Iodide d.0 Copper (...
*January 11, 2016*

**Art**

What is the best way to fully understand genre of art Critique two examples of art from genre Evaluate it based on criteria for another genre of art Research its history, development and characteristic style•• Study art from the same time period
*January 11, 2016*

**Art**

What is the best way to fully understand genre of art Critique two examples of art from genre Evaluate it based on criteria for another genre of art Research its history, development and characteristic style•• Study art from the same time period
*January 11, 2016*

**Art**

All of the following helped an artist learn throughout experimentation except Using standard materials in the manner in which they were intended Do you think standard techniques and new combinations to create different effects •• Create new ways of using materials ...
*January 11, 2016*

**Art**

Which of the following most influenced the art of tessellation Language Arts Social Studies Science Mathematics••
*January 11, 2016*

**Language **

Which statement describes someone who is formidable ? The principal smiled warmly as he welcome the new student The doctor told the boys father that the illness was not serious The woman towered above the small boy and spoke sternly•• The boys father sat at the foot ...
*January 11, 2016*

**Language**

in the excerpt from barrio boy, what makes Ernesto smilar to several of his classmates? A. Other students in the class also do not speak English.•• B. Other students in his class also live in his neighborhood. C. Other students in his class are also from Mexico. D. ...
*January 11, 2016*

**Language arts**

Select the future tense verb that completes the following sentence. Tori and Jeff ________ to California this summer. A) will go•• B) went C) go D) will have gone
*January 11, 2016*

**Language Arts**

A community center has announced that it will close next month which of the following types of writing could you use most effectively to try to change the situation? A) A letter to the editor urging newspaper readers to come to a "save the center" rally••&#...
*January 11, 2016*

**Language Art**

which sentence uses the verb eat in the past perfect tense? A) Sheila ate her lunch in the cafeteria B) they eat lunch together every day C) Douglas has eaten all the potato chips D)The twin had eaten pizza before they arrived••
*January 11, 2016*

**Health PlZ HELP MEE!!!**

Exposure to secondhand of smokes carries the same long term health risk as smoking True or False I think it's true Correct me if I'm wrong. Only people who crew smokeless tobacco can get oral cancer True or False I think it's False Correct me if I'm wrong
*January 6, 2016*

**Health Plz Help Me!!**

Thanks
*January 6, 2016*

**Health Plz Help Me!!**

Exposure to secondhand of smokes carries the same long term health risk as smoking True or False I think it's true Correct me if I'm wrong. Only people who crew smokeless tobacco can get oral cancer True or False I think it's False Correct me if I'm wrong
*January 6, 2016*

**Health PlZ Help Me!!**

Thanks :)
*January 6, 2016*

**Health PlZ Help Me!!**

Anti-smoking ads are an example of? A.The influence of friends B. The influence of family C. The influence of media D. The influence of teachers I think it's C correct me if I'm wrong
*January 6, 2016*

**Health HELP ME!!**

Okay thanks
*January 6, 2016*

**Health HELP ME!!**

So it's D??
*January 6, 2016*

**Health HELP ME!!**

Since 1964 the number of cigarettes smoked has A. Increased dramatically. B. Decreased to the near zero.•• C. Remained steady. D. Declined steadily. Correct me if I'm wrong.
*January 6, 2016*

**Englished **

Is assisted suicide should be legalized? A good topic for a speech for 9th grade?
*January 5, 2016*

**Science**

What is the density of a solid aluminum with a mass of 60g
*January 4, 2016*

**Physics**

On a frictionless horizontal air table, puck A (with mass 0.255 kg ) is moving toward puck B (with mass 0.365 kg ), which is initially at rest. After the collision, puck A has velocity 0.118 m/s to the left, and puck B has velocity 0.649 m/s to the right. What was the speed ...
*December 3, 2015*

**Physics**

Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 61-kg skater acquires a speed of 0.63 m/s . If the speed of the other skater is 0.86 m/s , what is this skater's mass?
*December 3, 2015*

**Physics**

Thank you
*December 2, 2015*

**Physics**

In a typical golf swing, the club is in contact with the ball for about 0.0010s. If the 45-g ball acquires a speed of 59m/s, estimate the magnitude of the force exerted by the club on the ball.
*December 2, 2015*

**Physics**

Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 61-kg skater acquires a speed of 0.63 m/s . If the speed of the other skater is 0.86 m/s , what is this skater's mass?
*December 2, 2015*

**Physics**

Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 61-kg skater acquires a speed of 0.63 m/s. If the speed of the other skater is 0.86 m/s, what is this skater's mass?
*December 2, 2015*

**Science**

Okay. Thank you!!
*November 30, 2015*

**Science **

Suppose the moon rotated on its axis just as quickly as earth. Would you still see the same side of the moon from earth? Please help!
*November 30, 2015*

**math**

plant a produced 8000 fewer panels than plant b, 4 % of the panels from plant a, and 3% of the panels from plant b were defective, how many panels did plant a produce if the two plants together produced 660 defective panels?
*November 16, 2015*

**Algebra**

Find the vertex of the parabola by first finding the x-value of the vertex by -b/2a Then plug the x-value you got back into the original function R(x) The y-value of the vertex is the max. revenue
*November 11, 2015*

**Physics**

Thank you so much
*November 11, 2015*

**Physics**

A 10kg mass is suspended as shown: i.gyazo[dotcom]/47dc49d5ec1eebe950472dba5f692e70.png (remove the brackets) What is the tension in the cord between points A and B? What is the tension in all of the cords? Thanks for the help, I just can't figure it out...
*November 11, 2015*

**Physics**

At a playground, a 22kg child plays on a slide that drops through a height of 2.1m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -371J on the child. What is the child's speed at the bottom of the slide?
*November 11, 2015*

**Physics**

Thank you!
*November 10, 2015*

**Physics**

Where did you get 1.44?
*November 10, 2015*

**Physics**

Catching a wave, a 77-kg surfer starts with a speed of 1.2 m/s, drops through a height of 1.60 m, and ends with a speed of 8.5 m/s. How much nonconservative work was done on the surfer?
*November 10, 2015*

**Physics**

An 91.0 kg in-line skater does 3620 J of nonconservative work by pushing against the ground with his skates. In addition, friction does -615 J of nonconservative work on the skater. The skater's initial and final speeds are 2.70 m/s and 1.02 m/s, respectively. Part B ...
*November 9, 2015*

**Physics**

A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 32 m/s . Part A Assuming that air resistance can be ignored, find the initial speed of the rock. Part B Find the ...
*November 9, 2015*

**Physics**

A 55-kg packing crate is pulled with constant speed across a rough floor with a rope that is at an angle of 41.0 ∘ above the horizontal. If the tension in the rope is 195 N , how much work is done on the crate by the rope to move it 3.0 mm ?
*November 9, 2015*

**Trig**

Find all angles θ between 0° and 180° satisfying the given equation. (Enter your answers as a comma-separated list. Round your answers to one decimal place.) Sin θ = 1/4
*November 9, 2015*

**ratios**

A gallon of milk costs $3.00. If there are 128 ounces = 1 gallon ,how much money does an 8 ounce glass of milk cost?
*November 4, 2015*

**geometry**

it is not 6 its 9 because 2.5/15=1.5/h cross multiply and divide
*November 3, 2015*

**trig**

Find the component form of v given its magnitude and the angle it makes with the positive x-axis. Sketch v. Magnitude Angle ||v||= 7/2 45 degrees v=( , )
*November 2, 2015*

**Geometry**

I'm not sure how to complete a two-column proof: Given <2=<4,m<2=100 Prove:m<3=70 All i have so far: <2=<4, m<2=100 : Given M<2 =m <4 :definition of congruent angles M<4=110 : ? M<3+m<4= 180 : ? M<3=70 : ? This is so stressful, please...
*November 2, 2015*

**Chemistry**

Based solely on the amount of available carbon, how many grams of sodium oxalate, Na2C2O4, could be obtained from 175 g of C6H6? (Assume that no loss of carbon occurs in any of the reactions needed to produce the Na2C2O4.)
*October 15, 2015*

**Math**

David runs 8 meters in 1 second,16 meters in 2seconds,24 meters in 3 seconds and 32 meters in 4 seconds.Determine whether David's distance is proportional to the number of seconds he runs by graphing on a coordinate grid.explain your reasoning
*October 13, 2015*

**Physics**

A model rocket rises with constant acceleration to a height of 3.1 m, at which point its speed is 26.0 m/s. A.) How much time does it take for the rocket to reach this height? B.) What was the magnitude of the rocket's acceleration? C.) Find the height of the rocket 0.15 s...
*September 14, 2015*

**Geometry**

what is the difference between line p (-4, 3) and q (6, 1)? round to the nearest tenth. This is practice please help!
*September 14, 2015*

**physics**

A rocket is fired at a speed of 66.0 m/s from ground level, at an angle of 63.0 ° above the horizontal. The rocket is fired toward an 31.2-m high wall, which is located 28.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*September 11, 2015*

**physics**

A swimmer, capable of swimming at a speed of 1.18 m/s in still water (i.e., the swimmer can swim with a speed of 1.18 m/s relative to the water), starts to swim directly across a 2.16-km-wide river. However, the current is 1.19 m/s, and it carries the swimmer downstream. (a) ...
*September 11, 2015*

**math **

Product A is a 12-ounce bottle of generic popcorn oil that sells for $1.39. Product B is a 24-ounce popcorn oil bottle that costs $2.79. Which is the better buy?
*September 11, 2015*

**Chem**

What is the balanced net ionic equation for magnesium metal being placed in a solution of gold(3) chloride ?(with steps please)
*September 8, 2015*

**Chem **

What is the balanced net ionic equation for aluminum foil reacting with hydrochloric acid ? (with steps please)
*September 8, 2015*

**chemistry**

What is the mass of 0.0137 mol of aspirin?
*September 7, 2015*

**math**

225 over 4 times 1 over 100
*September 4, 2015*

**algebra**

the width of my garden is 10 feet shorter than twice the length. the perimeter is 70 feet. find the length and the width
*September 3, 2015*