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Posts by Anonymous

Total # Posts: 108,477

Physics
A wheel with rotational inertia I initially rotates with a angular speed ?i . A torque is applied, speeding the wheel up to three times the angular speed in time ?t . A) Find the magnitude of the applied torque. B) Find the work done on the wheel during this time.

Physics
A hamster sits 0.10 m from the center of a lazy Susan of negligible mass. The wheel has an angular velocity of 1.0 rev/s. How will the angular velocity of the lazy Susan change if the hamster walks to 0.30 m from the center of rotation? Assume zero friction and no external ...

Science
post.

Science
V1 = -45 m/s. V2 = 30 m/s. a = (V2-V1)/t = (30-(-45))/1.2 =

English
In the poem silk weed which line from the exact rhyme with each other

english answer check please, 4 questions
1. To plan your time for a research project, it is best to (1 point) divide the time spent on each step evenly. keep your deadlines flexible. start at the beginning and plan from there.***** work backward. 2. Which of the following is not a guideline for choosing a research ...

Science
The image above shows the movement of a wave over three seconds. What is the frequency of the wave? A. 2 hz B. 5 hz C. 1 hz D. 3 hz

World History
Did you finish the test? What were the answers?

World History
Did you finish the test? What were the answers?

English
The students elected him secretary.

physics help
A 1.2-kg block slides on a horizontal surface with a speed of v=0.80m/s and an acceleration of magnitude a=3.2m/s2, as shown in (Figure 1) . a<__________ box _________>v What is the coefficient of kinetic friction between the block and the surface? Express your answer to...

Science
Which of the following boxes below represent a stable system? Describe how a disturbance to this box would affect it. Use the terms center of mass and equilibrium in your response. Box A: Shaped like a diamond on a flat surface with an arrow pointing downwards. Box B: A square...

physics
A 9.8-kg monkey hangs from a rope, as shown in (Figure 1) . The tension on the left side of the rope is T1 and the tension on the right side is T2. In the figure, ?=15? and ?=23?. Determine the tension T1. Express your answer to two significant figures and include appropriate ...

physics
please help The pulley system shown in the figure is used to lift a m= 67-kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume the masses of the chains, pulleys, and ropes are negligible. ...

physical science
dsf

Math
C is correct Solution: 19/25*25000=19000

algebra
-1/5x+5/2=11/5

math
Given: ?ABC is isosceles m?ACB = 120° m?BMC = 60° CM = 12 Find: AB is it 15?

Java
Which of the following classes best represents rare and serious internal system errors? Error Throwable RuntimeException Exception I think it may be Error or Throwable. Been having alot of trouble with this class lately, help would be appreciated. ~Thank you.

math
A frame is 4in. tall and 3in. wide. It it is enlarged to a height of 16in., then how wide will it be?

math
3 in. wide

math
A frame is 4in. tall in wide. If it is enlarged to a height of 16in., then how wide will it be?

math
thank you ms sue

math
Conversions in the Metric System

math
the scale of a map is given as 1:20,000 two cities are 5cm apart on the map. find the actual distance between them

Science
It can't be water.Let's say it's 70% by human and 30% by wind.

Science
Please post them now.

Science
They are right 10/10

Maths
12.5

Maths
There are 2 towers that are each 10m high.  A rope that is 15m long is strung between the tops of the towers.  At its lowest point the rope sags 2.5m above the ground (see schematic diagram).  How far apart are the towers?

Maths
Water is flowing at a rate of 15 km/hr through a cylindrical pipe of radius 7cm into a rectangular tank which is 50m long and44m wide. In how many hours will the water level in the tank raise by 21 cm?

physics
a point mass of 12.5 kg is hung from an 18.3 m long rope and swings back and forth with an amplitude of 2.34m. what is the oscillation period for the pendulum system?

math
* What is the average of the first n positive even numbers?

Math help! Check my answers ASAP!
B!tch no they don't

Math
The telephone prefix for a university is 243. THe prefix is followed by four digits. How many telephones are possible before a new prefix is needed?

math
Mieko practice shooting a basketball for 7/10 of her total practice time. During the other time she practiced dribbling, if she practiced dribbling for 18 minutes, how many minutes did she practice shooting?

Divide 4 acres in to 5 lots how much is that
Divide 4 acres in to 5 lots

Texas History
Bfd

floral
During which month would you have the most time to devote to freelance floral projects? A. October B. September C. November D. December

geography
What type of economy does each statement describe? Select C for Command economy. Select M for Market economy. Select T for Traditional economy.

Physics
Three charges lie along the x axis the positive charge Q1 = 4mC is at X=2m and the postion of postive Q2 = 8uC is at the origin Q3 is placed on the x axis what is the sign on Q3 and why

math
decreased 20 by double the square of -4

Physics
One guideline for how diffraction affects shadows is that distinct shadows are created if the width of something is a minimum of 10 times greater than the wave’s wavelength. What would be the narrowest width of something to make a distinct shadow with blue light of ...

URGENT
Four consecutive integer numbers add to 2. What are the numbers?

chemistry
What of this: CaCO3+H2=>Ca(OH)2+CO.

English
This might look funny and foolish but i seriously need answer.Can someone give the scientific definition of food?

physics
why does water show abnormal behaviour?

science
at 50 m

math
circumference = 2 pi r = 20 pi cm 20min/60min = 1/3 so (1/3)20 pi = (20/3) pi cintimeters

math
the minute hand of a clock is 10 cm long. through what exact distance does the tip move between 12p and 12:20 pm

Chemistry
Yes, I agree with you Jonathan.

geometry
Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule. A(n)=-2+(n-1)(-2.2)

math
at a party there is an equal number of boys and girls. One quarter of the boys have part-time jobs. Twice as many of the girls have part - time jobs. Altogether 30 of those present are without part-time jobs. Let x be the number of boys in the party?

Information system
- is videos conferencing really a viable green alternative to travel for most...

Math
Graph the function Identify the vertex and axis of symmetry f(x)=2x^2 + 4x +1 please explain steps I need to do. I keep looking at notes and just can't grasp any of it. Failing math not sure how to start again. I think I missed something major.

pyschology
u suck balls

Physics
One guideline for how diffraction affects shadows is that distinct shadows are created if the width of something is a minimum of 10 times greater than the wave’s wavelength. What would be the narrowest width of something to make a distinct shadow with blue light of ...

Math
Never I know that it is correct

computer programming
import java.util.Scanner; public class Names { public static void main (String[]args) { //declare variables String firstName, String middleName, String lastName, String monogram; // Create a scanner class Scanner input = new Scanner (System.in); System.out.println("Enter ...

physics
The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.50 µC; the other two have identical magnitudes, but opposite signs: q2 = -5.50 µC and q3 = 5.5 Â&...

Physics
F – to the right F=3700 N F(fr) to the left F(fr) =189 N mg – down mg=4700•9.8=46060 N N – up N=mg=46060 N F(net) =F-F(fr)=3700-189=3511 N ma=F(net) a=F(net)/m=3511/4700= 0.74 m/s² a ?if F(net)? or a? mg (action) N (reaction)

Language Arts
"I'd wash the Amazon river and clean the oily Carib & Gulf of Mexico, Rub that smog off the North Pole, wipe up all the pipelines in Alaska, Rub a dub dub for Rocky Flats and Los Alamos, Flush that sparkly Cesium out of Love Canal" In this excerpt, Ginsberg uses ...

Social Studies
What were the answers for the test?

Math
chicken

physics
A positive and a negative charge, each with a magnitude of 1.41 x 10^-5 C, are separated by a distance of 0.44 m. Find the force on each of the particles.

SS
rude.. I have seen you help people more than twice.

SS
ok. how about b?

SS
Are they both D?

SS
I think 1. is D and 2. is not A.

SS
I also need help with 2. Which of the following best reflects a shortcoming of the Kellogg-Briand Pact? A. It was unable to militarily prevent Hitler from marching into the Sudetenland. B. The United States did not participate. C. The Pact could only be enacted under an ...

SS
1. What is true about both Germany and Italy leading up to World War II? A. Both believed they had a right to land outside of their borders. B. Both countries owed repayments for World War I. C. Both wanted revenge for WWI. D. Both wanted to transform into a leading world power.

math
A customer purchased a jacket for $65. This was 80% of the original price.

math
The number of employees at a plant continually fluctuates. One month started at 568. Then 102 employees were hired, and the next 57 employees were displaced. If the plant then plans to add 10% more employees, how many will it have?

jk
A ball is projected horizontally with a initial velocity 8m/s .Find its position and velocity after 1/4 second

health
This is the articlle I found when I searched this Question. Hope it helps! This smooth appearance starkly contrasts with the banded appearance of cardiac and skeletal muscles. Cardiac Muscle. Found only in the heart, cardiac muscle is responsible for pumping blood throughout ...

Chemistry
A Catalyst.

Calculus
Solve the initial value problem. 7x^6-3x^2+5 and u = 1 when x = 1. Is this x^7 - x^3 + 5x - 4?

math
walter deposits $5,000 in a bank account that pays 9% simple interest. If he doesn't change the principal, what will his balance be in 4 years?.

Calculus
for -3cos + 5...

Calculus
Solve the initial value problem. dy/dx = 3 sinx and y = 2 when x = 0. Is this c = 5?

math
After sales tax is added the total cost of 58.00 dollars purchade is 61.48 dollars What is the sales tax rate on the purchase?

Chemistry
I think you mean to say, "check your typing skills."

Chemistry
Which of these will have a volume of 22.4 L at STP? A) 12.01 g of C(s) B) 16.4 g of CH4(g) C) 36.46 g of HCl(aq) D) 32.05 g of CH3OH(l) E) 22.00 g of CO2(g) I am not really sure how to verify that a particular substance will be at these conditions.

Math
Half of a circle is shaded. The diameter is 32cm. Calculate the area of the shaded region.

Physics
The wavelength of the emitted light from a laser is determined by which of the following? a. the active medium's composition b. frequency of the amplifying radiation c. the lasing tube's length d. all of the above

Math - Calculus
Yeah, how dare I ask for clarification on something I'm trying to understand.

Math - Calculus
Are endpoints also critical points? I'm trying to find the critical points of a function on the interval [-1,5]. So far,the only critical point I have is 2. Does that mean -1 and 5 are also critical points?

natural science/bio
flow diagram of circulatory and respiratory system combined

Physics
How does the electrical force relate to the charge of an object? It is inversely proportional to the square of the charge. It is directly proportional to the square of the charge. It is inversely proportional to the charge. It is directly proportional to the charge.

Physics
Which factors affect the electrical force between two objects? mass and distance between them charge and distance between them mass and electric field strength charge and mass

Physics
What is stimulated emission? a. the process of distinguishing between sources of electromagnetic waves. b. the process of reducing mechanical waves' energy. c. the process of amplifying sound waves. d. producing move light waves which are coherent with an incident light ...

@Ms. Sue
Ms. Sue you always make problems for everyone here. You always wonder why you get so much hate.

physics
The efficiency of a machine is 80%. Determine the work done by a person using this machine to raise a load of 200kg through a vertical distance of 3.0 (take g = 10m/s)

Social studies
Yep, my Name Isn't Important is 100% correct, not a troll.

Science
1c 2b 3c 4b

Math help! Hurry Please~
is yea agala, right?

MATH
did anyone get the answers to this test

MATH
Good luck

MATH
Lesson 3: Function Rules CE 2015 Math 7 B Unit 3: Patterns and Rules heellllllllp

MATH
1. Jacob mixes the letters J, K, L, J, K, M, N, and P thoroughly. Without looking, Terry draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that K will not be the letter Terry selects? (1 point) one-fourth, 0.25, 25% three-fourths, 0.75...

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