Posts by Christian
Total # Posts: 500

Science
A 9.8basketball player runs at a speed of 7m/s A.what is kinetic energy B.how much work was done by player to reach his speed starting from rest 
math
You jogged 11 kilometers at an average speed of 10 kilometers per hour. How long did you jog? I need help please 
math
A cheetah traveling at 31 m/s chased its prey for 11 seconds. What distance did the cheetah travel during the chase?? 
math
Georgia works at the Yogurt Shoppe. She is able to scoop yogurt into perfectly round scoops that have a radius of 6 cm. If Mary buys a triple scoop of yogurt in a cup, how much yogurt will Georgia give Mary? Use 3.14 for ? and round answer to the nearest whole cm. Include... 
math
The total volume is 690 pi cubic inches. Each cup has a volume of 20?. How many complete cups can be filled from the water containers? 
Sociology
For number 15 it's lower middle class C everything else is right. 
Math (unit rates)
7th grade question, An airplane traveled 1,991.25 kilometers at an average speed of 885 kilometers per hour. How long did it take for the airplane to travel this distance?? help please 
maths
find the product of x and y if x,3/2,6/7,y are in geometric progression 
Physics
A rocket of mass 1000 kg containing a propellant gas of 3000kg is to be launched vertically. If the fuel is consumed at a rate of 60kgs1, calculate the least velocity of the exhaust gasses if the rocket and content will just lift off the launching pad immediately after firing 
Math
In a class of 28 sixth graders all but one of the students are 12 years old. Which two data measurements are the same for the students ages? 
physics
A box weighing 87 lb is being pulled with a rope that exerts a force of 60. lb at an angle of 15 degrees with the horizontal. if the coefficient of kinetic friction is .35, what is the kinetic friction? 
physics
A box weighing 87 lb is being pulled with a rope that exerts a force of 60. lb at an angle of 15 degrees with the horizontal. if the coefficient of kinetic friction is .35, what is the kinetic friction? 
Art plz help fast!
are these right?? 
Maths
area of a circle=22/7(r)2 radius=4m i.e22/7(4m)2=50.3 
Math
it would be .5 
chemistry
A certain amount of gas occupied 5.0dm at 2atm and 10°.calculate the number of mole present 
Science
A box weighing 20lb. is being pushed up an incline. If the angle of incline was 90° to the ground, what effort would be needed to push the mass? I don't get how to get the effort if an angle was in the problem. 
Math
A store discounted everything by 51%. The sales price of a scarf is $72.89. What was the original cost of the item? 
Math
Dr ew does push ups every three days starting on January 3. He does situps every four days starting on january 4, On which days in January will he do both pushups and situps? Use words numbers, or models to justify your answer. 
math
uiol 
Algebra
Violet used 1 3/4 gallons of paint on her kitchen wall.She used 4 times as much paint for her living room and bedroom walls. How much paint did Violet use for the living bedroom walls? 
Geometry
Oh thank you I was so confused! 
Geometry
Let B be between C and D. Solve for w CB = 4w  4 BD = 2w  8 CD = 24 I'm actually very confused on what to do here. 
Math
Ivan has a 5cent stamp, a 10cent stamp, and a 20cent stamp.How many different combinations of postage can he form with the stamps? 
Math
How many different 3digit numbers can be formed from the number 1,2 and 3 if the digits do not repeat in the numbers? 
Trig
Cicero has a population of 6200 people and is growing at a rate of 8% per year . Mattydale has a population of 8750 and is growing at a rate of 6% per year create and equation solve the problem and in how many years to the nearest year will Cicero have a greater population ... 
Physics
A box weighing 20lb. is being pushed up an incline. If the angle of incline was 90° to the ground, what effort would be needed to push the mass? 
Civics
paragraph using the following words proprietary colony, royal colony, religious dissenters, puritans, and toleration. 
physics
23. Two identical balls each have an excess charge of 5.0 x 107 C, and they are attached to the ceiling by light string 0.80 m long as shown in the figure below. If the angle that the threads make with respect to each other is 300, determine the force experienced by each ball... 
Math
A family pass to the amusement park costs $54 Using the Distributive Property,write an expression that can be used to fine the cost in dollars of 8 family 
Physics
A body is projected with an initial velocity 300m\s at an angle 60 with the vertical;determine :1.the velocity at the maximum height 2.The maximum height reached 
Discrete Math Proof Exercise
Prove that if 3n^2+5 is odd, then n is even. Please post a detailed answer. Thank you. 
Math
Pepper and Chee shared a pizza. Pepper ate 2/3 and chee ate 1/12 of the pizza. What fraction was left 
maths
The bearing of two points Q and R from a points P are 030 degree and 130 degree respectively. If PQ is12cm and PR is 5cm, find QR 
reading
Anne frank 
Chemistry
4.13 grams of magnesium chloride were recovered after the chemical reaction between magnesium and chlorine gas occurred. If 7.10 grams of magnesium chloride was suppose to be produced, what is the percent yield of magnesium chloride? 
math
A rocket is fired at an angle of 18.5 ° with the ground from a point 1670 m directly behind an observer. Shortly later the rocket is observed at an angle of elevation of 33.5 ° directly in front of and above the observer. How far on a direct line has the rocket moved? 
science
If a projectile is shot under an angle of 30* with a force of 500N what is the time the projectile reaches the maximum hight.The projectile's mass is 100g.(g=10N/kg) 
algebra
Billy charges $15 to mow a yard. He needs at least $200 for the new bicycle that he wants. Write and solve an inequality to find out how many yards must he mow to make at least $200? A) 11 yards B) 12 yards C) 13 yards D) 14 yards 
Science
It cause rain affect 
thermodynamics
no answer 
Algebra
Max is given the problem, writes two equations, solves and finds that the length is 20 feet and the width is 15 feet. What is the answer to the problem? 
Chemistry
If 0.30 mol N2H4 is reacted with 0.50 mol N2O4, how many moles of N2 can be formed? 
Math
Nakayla is the best girl ever I just love her so much. She is taken by me. 
Physics
A 2kg brick is moving at a speed of 6 m/s. how large a force F is needed to stop the brick in a time of 7x10^4 s? 
physics
16g mass is moving in the +x direction at 30 cm/s while a 4g mass is moving in the x direction at 50 cm/s. they collide head on and stick together. find their velocity after the collision. 
Physics
16g mass is moving in the +x direction at 30 cm/s while a 4g mass is moving in the x direction at 50 cm/s. they collide head on and stick together. find their velocity after the collision. 
MATH help
Karen buys pounds of flour. She uses 2.5 pounds to bake bread. She keeps the rest of the flour in a small storage bags. If each storage bag contains 2/5 pound of flour, how many storage bags does she use? 
algebra
There are (35)2 ⋅ 30 leaves on a tree. What is the total number of leaves on the tree? 33 37 310 325 
algebra
Which shows the expressions in the order they would appear on a number line from least to greatest? 17 over 9, square root of 6, square root of 15, square root of 30, 3 to the power of 3 3 to the power of 3, square root of 30, square root of 15, square root of 6, 17 over 9 3 ... 
ALGEBRA
whats the answer can you explain 
ALGEBRA
The amounts of ewaste generated in a region during two years were 14,200,000 tons and 10,700,000 tons. What was the total ewaste generated over these two years in the region, expressed in scientific notation? 2.49 ⋅ 107 tons 2.49 ⋅ 1014 tons 24.9 ⋅ 107 tons... 
ALGEBRA
Which expression is equivalent to 32 ⋅ 3−5? fraction 1 over 3 to the power 3 fraction 1 over 3 to the power 7 fraction 1 over 3 to the power negative 3 fraction 1 over 3 to the power negative 7 
algebra
HELPP 
health
Endocrine glands ________. A. Do not have ducts to carry their product to a surface B. Do not have ducts to retain their product below surface C. Have ducts that carry their secretory product to a surface D. Have ducts to retain their secretory product below surface 
health
What three processes does food undergo in the digestive system 
English
Make me a sonnet that has 14 lines 10 syllables 
Math
Hidra #4 is liberty hill 
Physics
I shot two arrows into the air the first arrow had a speed of 10 m/sec , 1 second later I shot the 2nd arrow into the air with a speed of 15 m/sec. Will they meet? If so, where? 
physics
Do what Henry did, you should get 693.685 N. 
grammar
would social studies be capitalized in this sentence: I don't understand how he did the social studies problem. 
Physic
How far does a cyclist travel when she accelerates from rest to 6.5m/s in 22s? 
Physic
A car accelerates from 5.0m/s to 22m/s in 18 seconds, find the acceleration. 
Physic
If your weight on Earth is 637 Newton, what is your mass in kg? 
Physics
A skier moves 100.0 m horizontally, and then travels another 35.0 m uphill at an angle of 35.0º above the horizontal. What is the skier's displacement from his starting point? 
PreCalculus
Reflect f(x)=x^2 about the yaxis. What changes? 
personal finance
Which type of tax is calculated on a peritem basis? 
math
1 1/3 x 2 1/2 
Algebra 2/Trigonometry
How do I solve f(x)=x^36x^2+16x96 using Descartes' Rule of Signs to find the number of positive and negative real roots, along with imaginary roots, but not with a graph? 
math
7 goats 
math
7 
chemistry
3moles KI in 500 g of H2O equals what molality? 
PreCalculus
Use an Addition or Subtraction Formula to find the exact value of the expression: tan7π/12 
math
LOVE this website just found it!!!! 
physics... PLEASE HELP
22.8666666666666666666666666666667 
Physic
What is g? 
Physic
I need someone that can help with a formula any smart people. Law of universal gravitation f=g m 1 x m2 /r^2 needs to k ow what g is? Help? 
physics
A metal sphere is launched with an initial velocity of 1.5 m/s as it leaves the ramp. The end of the ramp is 1.2 m above the floor. Calculate the range of the sphere. 
Chemistry Help! (Rydberg Equation)
a) According to the Rydberg equation, the line with the shortest wavelength in the emission spectrum of atomic hydrogen is predicted to lie at a wavelength (in nm) of _____ b) According to the Rydberg equation, the longest wavelength (in nm) in the series of Hatom lines ... 
maths
The bearing of two points Q and R from a points P are 030 degree and 130 degree respectively. If PQ = 12cm and PR=5cm, find the QR 
Algebra 1
20 floors 
PreCalculus
Find all solutions of the equation and express them in the form a + bi. 36x^2 − 12x + 2 = 0 
PreCalculus
Find all zeros of the polynomial P(x)=x^3x6 
Accounting
1. Compute the estimated uncollectible accounts at the end of the year using the following rates: Current 1% 1–30 days past due 3% 31–60 days past due 9% Over 60 days past due 25% 2. As of December 31, 2013, there is a credit balance of $208.20 in Allowance for ... 
Accounting
Ultra Leather Products sells leather clothing at both wholesale and retail. The company has found that there is a higher rate of uncollectible accounts from retail credit sales than from wholesale credit sales. Ultra computes its estimated loss from uncollectible accounts at ... 
Math fractions
70 
History
Cross Out The One I Already Wrote 
History
Choices –Choose only ONE for this section: (Social, Economic, or Political) • Include a specific piece of evidence from the “Analyze it” portion of your lesson to support your ranking of your “#1 Cost of the American Civil War.” • Include a ... 
History
Explain in your own words why you listed this particular cost as the “#1 Cost of the American Civil War.” 
trigonometry
To the nearest degree what is the angle formed with the ground by a 32 ft ladder if it is leaning against a wall at a height of 28 ft? 
history
no guys it like comparing and an orange and an apple 
College Physics
A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m. While she is in contact... 
College Physics
An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the booster rockets no ... 
College Physics
Most of us know intuitively that in a headon collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that experienced by... 
Physics (Help Please)
Most of us know intuitively that in a headon collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that experienced by... 
Physics (Help Please)
An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the booster rockets no ... 
Physics (Help please)
A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m. While she is in contact... 
math
I am the greatest common factor of three numbers. Their sum is 36. The largest number is twice the smallest and the middle number is the mean of the other two. What are the three numbers? What number am I? 
Science
1is a 2 is d 3 is a 4 is a I got 100% 
Science
1is a 2 is d 3 is a 4 is a I got 100%