Wednesday

September 28, 2016
Total # Posts: 60

**physics**

an arrow is shot vertically upward 2 seconds later it is at an height of 42m (not necessarily the highest point) with what velocity was the arrow shot how long was the arrow in flight altogether

*August 4, 2016*

**physics**

a person in a hot air balloon ascending vertically at a constant rate of 12mm/s drops a rock over the side when the balloon is 40m above the ground how long will it take the rock to reach the ground

*August 4, 2016*

**Waste water treatment**

In wastewater treatment, what is the required open screen area (m2) for reaching this screen velocity during treatment of the rain weather flow when dimension of the pre-treatment unit for the wastewater treatment plant is receiving a dry weather flow (dwf) of 18000 m3/day, ...

*May 30, 2016*

**math**

Volume of a cylinder=pi*radius^2*height If diameter=4+2x, then radius=2+x radius^2=x^2+4x+4 Volume=pi(5x^3+10x^2+20x+x^2+4x+4) Volume=pi(5x^3+11x^2+24x+4) Depending on what your x value is, plug it in to get an answer

*April 6, 2016*

**Algebra**

Just a fun fact: the first equation is a circle with radius of 5 (square root of 25). I'll use substitution to answer this. Let's start with defining x: x=10-2*y Insert into the first equation: (10-2*y)^2+y^2=25 Expand the equation: 100-20y-20y+4y^2+y^2=25 Simplify: 5y...

*April 6, 2016*

**Solid**

the altitude of the pyramid is 30cm and its base is enclosed by a rectangle whose dimension are 12cm by 18cm respectively. what is the distance from the vertex of a section parallel to the base whose area is 72cm^2?

*February 19, 2016*

**Math**

1/64g^3

*January 13, 2016*

**Math**

(4g)^ -3 Evaluate

*January 13, 2016*

**thermodynamics**

Summation of Q = 0 Qsilver + Qice = 0 Qsilver = (mass of silver)(Csilver)(final temp - initial temp) Use Latent heat because ice transformed phase to water Qice = (mass of ice)(heat fusion of water) mass of silver * Csilver * (0-75) + mass of ice * heat fusion of water Isolate...

*November 28, 2015*

**PHYSICS URGENT**

While flying at an altitude of 7.25 km, you look out the window at various objects on the ground. If your ability to distinguish two objects is limited only by diffraction, find the smallest separation between two objects on the ground that you can resolve as distinguishable. ...

*October 15, 2015*

**Math**

Thanks for helping me and walking through the problem with me. I think my answer is correct.

*May 25, 2015*

**Math**

0.5 times 38= 19 0.5 times 50= 25

*May 25, 2015*

**Math**

I multiply .5 by 3. Very sorry, but this is hard.

*May 25, 2015*

**Math**

My answer is 1.5

*May 25, 2015*

**Math**

triangle abc has sides that are 20 centimeters 38 centimeters and 50 centimeters in length . it is related to triangle cde by a scale factor of 0.5 what are the lengths of the sides of triangle CDE. I need help to figure this out. Thanks

*May 25, 2015*

**Math**

I think it is translation.

*May 24, 2015*

**Math**

What type of transformation is used when moving up an escalator?

*May 24, 2015*

**comparative politics**

Why do some types of institutional arrangements favor political stability while others increase the propensity of conflict?

*April 10, 2015*

**Math**

Thanks

*February 4, 2015*

**Math**

Six less than the product of four and a number is less than 0.5 times the opposite of the number My answer 6-4n< 0.5/n

*February 4, 2015*

**Math**

Six less than the product of four and a number is less than 0.5 times the opposite of the number My answer 6-4n< 0.5/n

*February 4, 2015*

**Math**

-1/4x+6=2/3x+28 X=22 that is my answer I got

*January 20, 2015*

**7th grade math**

Thanks a lit

*January 19, 2015*

**7th grade math**

-2(3r+4)= -5r-8-r Answer I got r=r Question 2 14+8w=4(8+2w) I have 14=48. No solution

*January 19, 2015*

**Math equation**

Thanks a lot

*January 14, 2015*

**Math equation**

For the second equation N= 23/4?

*January 14, 2015*

**Math equation**

Thanks

*January 14, 2015*

**Math equation**

Question1 The difference of a number and 7 is -8 I put n-7=-8 Is that correct? Question 2 Six less than the product of four and a number is -5 I put 6-4n= -5

*January 14, 2015*

**Math**

Thanks

*January 14, 2015*

**Math**

7x-10x=9 My answer x= -3

*January 14, 2015*

**algebra**

Suppose that the weight (in pounds) of an airplane is a linear function of the total amount of fuel (in gallons) in its tank. When graphed, the function gives a line with a slope of 6.2. With 52 gallons of fuel in its tank, the airplane has a weight of 2222.4 pounds. What is ...

*April 2, 2014*

**Math**

Ethan ordered 4 sub sandwiches for a party. Each 1/2 sandwich is one serving. Does he have enough to serve 7 friends? How much is leftover or how much more is needed? Explain.

*January 23, 2014*

**Math**

Ethan ordered 4 sub sandwiches for a party. Each 1/2 sandwich is one serving. Does he have enough to serve 7 friends? How much is leftover or how much more is needed? Explain.

*January 23, 2014*

**math**

I have four digits. I am greater than 11 and less than 12. The sum of the four digits is 13. The digit in the hundredths place is 6. What is the number?

*January 21, 2014*

**waste water treatment**

In wastewater treatment, what is the required open screen area (m2) for reaching this screen velocity during treatment of the rain weather flow when dimension of the pre-treatment unit for the wastewater treatment plant is receiving a dry weather flow (dwf) of 18000 m3/day, ...

*November 20, 2013*

**math**

find two numbers the exact number is between. my daughter is estimating products.

*September 23, 2013*

**Math**

Mass of cylinder 1 = 1.35 mass of cylinder 2. Volume of cylinder 1 = 0.792 volume of cylinder 2. Density of cylinder 1 = 2.10 g/cc. What id density of cylinder 2?

*September 5, 2013*

**help physics**

A satellite, LangSat, moves in circular orbit around the Earth at a speed of 4.95kms-1. (i) What is the altitude of the satellite (ii) Determine the period of the satellite’s orbit (iii) What is the value of the gravity, g, at the satellite. (iv) If another satellite, ...

*September 2, 2013*

**pHysics !!**

A 20-g bullet is fired horizontally into a 980 g block of wood suspended by a long cord. The bullet sticks in the block and causes the block to swing 15 cm above its initial level. a) What is the momentum of the bullet before it hit the block? b) Determine the velocity of the ...

*September 1, 2013*

**physics !!**

how u calculate i calculate get 0.693m . can u explain to me ??how u did this ~ why the 3Hz /4Hz?

*August 30, 2013*

**physics !!**

A student on a stool rotates freely at 180 rounds per minute. The student holds a 1.00 kg mass in each outstretched arm, 0.8 m from the axis of rotation. The combined moment of inertia of the student and the stool is 6.00 kgm2 which remains constant. How far should the student...

*August 30, 2013*

**PHYsics !!**

a) What do you understand by Simple Harmonic Motion? b) A simple harmonic motions is characterized by the equation x = (10 cm) sin (0.1t + ) where, x is in cm and t is in seconds Determine the i. amplitude and angular frequency. ii. linear frequency and period. iii. ...

*August 27, 2013*

**Physics**

What electromagnetic waves are dangerous for humans and why? I have microwave, xrays....can you help name a few

*August 20, 2013*

**Physics**

no its not

*April 14, 2013*

**Psychology**

Janet has been attending Killian High School for three years. At the beginning of her senior year, she enrolled in Ms. Brosham's English class. She heard from her two older siblings that Ms. Brosham was a hard-nosed, crusty teacher who did not tolerate uncertainty. After a...

*November 20, 2012*

**physics**

46600

*April 29, 2012*

**Lone Star **

8.16 x 1024 atoms of neon gas = how much in volume liters

*November 19, 2011*

**writing**

Correct this passage,place all corrections in bold print and parthese. Why are great numbers of students choosing to pursue their college degrees using their home computers. Benjamin Franklin said; A penny saved is a penny earned”. This principle applies to the American ...

*November 7, 2010*

**Social Studies**

I thank you for response. I do have some key points w/the information that I have. Just need to figure out the timeline from 1940's to 1950's. The reading that I have has the time line out of order. I just needed to know how to begin...Thanks

*July 12, 2010*

**Social Studies**

I need to do a power point on both questions that was previous posted. I don't know how to strat it off. can I start by saying how important it is to know history...Imma little lost

*July 12, 2010*

**Social Studies**

Explain how the U.S became involved in the politics of Southeast Asia. Explain how this involvement affected the U.S. politicalclimate of the 1950's

*July 12, 2010*

**Physics**

A beaker of mass mb containing oil of mass m1 and density ρ1 rests on a scale. A block of iron of mass m2 and density ρ2 is suspended from a spring scale and completely submerged in the oil. Determine the equilibrium readings of both scales. (Use rho_1 for ρ1, ...

*November 16, 2009*

**chemistry**

what are the examples of suspension?

*October 18, 2009*

**5th Grade English**

dennis is good on athletics

*September 1, 2009*

**math**

How do i factor? a)5a^2b+ab^2 b)9k^2-1 c)2y^2-5y+2 If i can get an idea how to do these and i work the rest i have to do myself, thanks

*June 18, 2009*

**Phiscal science**

gravitational, electromagnetic, and nuclear forces. 1. Why are these forces often called fundamental or basic forces? 2. Where are these forces found? 3. How are other forces related to them?

*October 2, 2008*

**geometry**

Find the precision for 120 meters

*September 4, 2007*

**math**

How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2? This is really a physics question. The equation that you use is Newton's second law, Force = Mass x Acceleration. In this case, the total mass being accelerated is 300 kg. Multiply ...

*June 12, 2007*

**Psychology -- anyone**

If you are reading this for a PSY206 assignment at AIU, beware. Turnitin knows this source.

*July 19, 2006*

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