# Posts by Jack

Total # Posts: 1,848

Physics
12.4

Physics
A bowling ball of mass 3.5 kg moves in a straight line at 4.48 m/s. How fast must a Ping-Pong ball of mass 3.456 g move in a straight line so that the two balls have the same momentum? Answer in units of m/s.

physics
A wheel has a rotational velocity of 18·rad/s counterclockwise. You place you hand against the wheel and the friction between your hand and the rim stops it. (a) If it takes 4·s to stop the wheel, what is its rotational acceleration? rad/s2 (b) How far does the ...

Socials Studies
what did the monarch who replaced napoleon in 1813 want to revive how did it affect the people of france

Socials Studies
What was the outcome of the five year war between France and Spain and What country did Spanish troops ally with to fight napoleon's grand armee?

physics
A ball is thrown straight up and reaches a maximum height of 6.57 m . What was its initial speed? The accelera- tion of gravity is 9.8 m/s2 . Answer in units of m/s

physics
A 25.7 kg mass attached to a spring scale rests on a smooth, horizontal surface. The spring scale, attached to the front end of a boxcar, reads T = 47.6 N when the car is in motion. If the spring scale reads zero when the car is at rest, determine the acceleration of the car, ...

math
Karen collects local and foreign coins. Of the coins in her collection, 1 4 are foreign coins. Of the foreign coins, 2 5 are from Mexico. What fraction of the collection are foreign coins that are not from Mexico?

Socials Studies
Toussaint Louverture was immortalized in sonnet by the British poet Wordsworth

chemistry
What volume of 1.34 mol/L hydrochloric acid, HCI, is expected to react completely with 6.89 g of calcium?

Math
Eighty metres of fencing are available to enclose a rectangular area. What are the dimensions that enclose the max area. What is max area?

math
why do you always mind this person's business ms.sue?

Physics
A 2.13 kg mass is suspended from a string which is pulled upward. The mass accelerates upwards with an acceleration of 3.10m/s2. What is the tension in the string?

Physics
A 1250 kg car traveling at 20 m/s suddenly runs out of gas while approaching the valley shown in the figure below. What will be the car's speed as it coasts into the gas station on the other side of the valley? (Assume that no energy is loss to friction.) file://dd-s-1/...

Physics
A weight of 690 N is held by two cables. The left-hand cable had tension T2 and makes an angle of 41◦ with the ceiling. The right-hand cable had tension T1 and makes an angle of 42◦ with the ceiling. What is the tension in the cable labeled T1 slanted at an angle ...

english
Lennie thinks Crooks is trying to scare him and gets becomes defensive saying "George will come back"

physics
A ball player hits a home run, and the baseball just clears a wall 17.6 m high located 122.0 m from home plate. The ball is hit an an angle of 35° to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 1.1 m above the ground. (a) What is...

Physics
A 0.118 kg baseball traveling with a horizontal speed of 3.14 m/s is hit by a bat and then moves with a speed of 33.7 m/s in the opposite direction. What is the magnitude of the change in the ball's momentum?

math
Two sides of a rectangular fence are 5 5/8 feet long The other two sides are 6 1/4 feet long. what is the perimeter

Math Help!
2/3(k+8)=52

math
What is the GCF of 8 and 24? What is the LCM of 8 and 24?Write the sum of 8 + 24 as the product of its GCF and another sum.

Physics
Mary if riding her bike at a constant velocity of 10.2m/s. Suddenly someone jumps in front of her, 6 meters ahead of her. The coefficient of friction is 0.35, and her total mass is 130kg. She slams the breaks with 800N of force. Will she be able to stop in time? I heard that ...

L.A.Help!!!!!!
the answers for the whole quiz is 1. c 2. d. 3. b

EDTECH
UNIT 4 lesson 4 All of this information is part of a ___ in a database. a. record b. row c. column d. field What other information do you need to add to complete the database above? a. cell fill color b. fields c. field names d. borders

science
What would you need to know to determine the total amount of photosynthesis going on in the canopy and near the forest floor? Why?

language arts
according to harriet tubman, what was thomas garrett's role in the underground railroad

Algebra
Angle A is three times the measure of angle B. The sum of their measures is 128 degrees. Angle B is (x + 2) degrees. Find the value of x.

science
which of the following is true about the magnetic field diagram below

English
i hope that helps

English
somebody help i am new's answers are correct i got them all right

math
21

math
the product of my digits is an even number the sum of my digits is < 100

statistics
VGFIHTRNHKJ

Biology
For yogurt, draw a representative molecule of amino acids it contains.

Biology
Yogurt contains fats, cholesterols, carbohydrates(fibre, sugar and starch) and protein. For each of the nutrients that this food contains: Explain how the molecule's structure fits it function?

Science
I AM A CHEESE PIE

Physics
An apple falls from a tree and hits the ground 8.83 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

Science
WTF does that mean, I would agree you said, yes or no,?

Trigonometry
158

Materials Science
can you share the source of this question?

physics
A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 19.0m/s when the hand is 1.50m above the ground. How long is the ball in the air before it hits the ground? (The student moves her hand out of the way.)

Algebra 1
A student reads an average of 34 pages per day. The number of pages she reads per day varies from the average by up to 8 pages. a. Write an absolute value inequality that represents the range of the number of pages she reads per day. b. Solve your inequality

Algebra
In a sports poll, 53% of those surveyed believe their high school football team will win the state championship. The poll shows a margin of error of +-5 percentage points. Write and solve an absolute value inequality to find the least and the greatest percent of people that ...

Algebra 1
EXCELLENT. Thanks much.

Algebra 1
In order to earn an A in a class, your test scores must average at least 92%. On the first 6 tests, you have an average of 91%. What score do you need to get on the last test to earn an A? Show your work.

Algebra 1
Sorry but how do you know to include 80 and 90. Just cannot understand that part. Thanks much.

Algebra 1
Can you PLEASE elaborate ?

Algebra 1
I think you are saying option c. But real answer is d. Not sure why.

Algebra 1
A teacher knows that 80% of her students will score no more than 5 points above or below the class average, 85%, on the test. Which inequality represents the test scores of 80% of her students? a. 75<A<85 b. 85<=A<=90 c. 80<A<90 d. 80<=A<=90

science
I think it's pronounced You're

science
By the way the answer is B

science
Ms.Sue um are you ok

Math
How many tenths are there in 4/5?

History
Ms.Sue, You are extremely unhelpful. You're also quite rude, Please do go back to mannerism school.

Finanal
using the maximum ratios for a conventional mortgage, how big a monthly payment could the Burton family afford if their gross (before-tax) monthly income amounted to \$3500? Would it make any difference if they were already making monthly installment loan payments totaling \$750...

physics
A river flows with a uniform velocity v. A person in a motorboat travels 1.11km upstream, at which time she passes a log floating by. Always with the same throttle setting, the boater continues to travel upstream for another 58.8min and then returns downstream to her starting ...

math
flossie has \$62.05. In quarters, she has 3 more than twice the number of half dollars, and 10 more dimes than quarters. how many of each coin does she have

calculus
Not sure what you mean. It says it's in the first quadrant.

calculus
1. Let S be the region in the first quadrant bounded by the graphs of y = e^(-x^2) y = 2x^2, and the y axis. y x = 2 , and the y-axis. a) Find the area of the region S. So when I integrate, is it from 0 to .5325? I found where they intersect on the calculator. Is this the ...

math
15

Math
By the way, you converted AUD to EUR, than apparently EUR back to AUD, yet you have different numbers for AUD...

Math
Convert from AUD to EUR, than EUR to USD.

physics
Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactions. Give at least one example of an application of each branch.

physics
Well i put generators and television for electricity & magnetism

physics
Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactions. Give at least one example of an application of each branch.

English
#2

English
#1

English
#3

algebra
That's what I tried, but it's wrong. Idk why.

algebra
What is the maximum value of c such that the graph of the parabola y = (1/3)x^2 has at most one point of intersection with the line y = x+c?

mathematics
Write down algebraic expression for thabo's age in 6 year's time

physics
Ok I actually understand part of it now, but why is sin (θ1) used instead of cos? Wouldn't using cos give the horizontal component of F2?

physics
Three balanced forces pull on a ring that is centered over a force table. Two forces F1 and F2 are due to weights hanging from pulleys. A frictionless pulley changes the direction of a force without altering its magnitude. The third force F3 is applied by a string that passes ...

Calc
WHATS THE ANSWER

Reading
we are working togather...Thank you.

Reading
Thank you Ms. Sue

english
Words to choose from: Credible, Cursory, Designate, Deviate, Improvise, Interim, Latent, Secular, Shun, Simulate…… I remember so well the time my mother’s back injury prevented her from going to church with my brother and me. For five weeks, we were supposed to ...

math
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -6x2 + 3x + 3.

Math
The average weight of 3 boys is 53 pounds. Not one of these boys weighs less than 51 pounds. What is the maximum possible weight in pounds, of any one boy?

Science
@WaffleMustache Stop trolling, there are 2 possible points for those questions meaning that you have to have two. Everyone, these ppl are trolling...

Reading
I was not _______(e)d with athletic ability; mortified or detract

English 4 help
Eat a dick Ms. Sue

CHEMISTRY
given this balance equation, C2H5OH+3O2=3H2O+2CO2 HOW MANY GRAMS OF CO2 ARE PRODUCED FROM 18.5 GRAMS OF OXYGEN GAS?

algebra1
did you take the unit test for connexus ?

algebra1
Please Help me out if you know this... Simplify. x/7x+x^2 A. 1/7+x; Where x does not equal -7 B. 1/7x; Where x does not equal 0 C. 1/7+x; Where x does not equal 0,-7 D. 1/7

science
1.b 2.c 3.a 4.d

science
I got a 100% with mine... Thxs btws

H.E.L.P
Wrong Answers

Biology
Examining an animal showing juvenile somatic characteristics and sexual maturity, how can you tell if this is the result of progenesisor neoteny?

Math 2
1-4

Chemistry
If the solubility constant for Ag2CO3 is equal to 8.1x10^-12 how many grams of Ag2CO3 will dissolve in a .0001 M solution of Na2CO3?

Social Studies
What characteristic did the Mauryan and Mughal empires share? -Both helped spread Buddhism -Both helped spread Islam -Both embraced the idea of religious tolerance -Both were begun by Aryan people

chemistry
Yes, not all reduction potentials are findable.

chemistry
A 4.70 g sample of a certain gas occupies 530. mL at STP. What mass of the same gas is present in a 1.15 L container at 40.5°C and 785 mm Hg?

math
simplify 8g^7h^-3 over (like a fraction) 2g^4h^8 a. g³ over 4h^5 b. 4g³ over h^11 c. 4g³h^5 d. 4h^11 over g³ thank you for your help!

Physics
A turntable rotates counterclockwise at 63 rpm. A speck of dust on the turntable is at θ = 0.57 rad at t = 0 s. What is the angle of the speck at t = 9.5 s? Your answer should be between 0 and 2π rad.

science(check answers)
5 is false

Math: Thinking Mathematically
Never Mind... I Just figured it out. Thanks Steve for help!!! :D

Math: Thinking Mathematically
Hey Steve, I'm also stuck on this problem too. I understand the part about the height being 12 yards since the three cables are attached 4 yards below the top. I can't figure out how you ended up with 15 yards. When you say that the other leg is 9 yards, are you ...