Friday

January 20, 2017
Total # Posts: 31

**Physics**

Two blocks are connected over a massless, frictionless pulley. The mass of block 2 is 8.00 kg, and the coefficient of kinetic friction between block 2 and the incline is 0.250. The angle θ of the incline is 28.0°. Block 2 slides down the incline at constant speed. ...

*September 30, 2016*

**Physics**

A mop is pushed across the floor with a force F of 36.0 N at an angle of Θ = 50.0° (see figure below). The mass of the mop head is 3.75 kg. Calculate the acceleration of the mop head if the coefficient of kinetic friction between the head and the floor is μk= 0....

*September 30, 2016*

**Physics**

A hockey puck that has a mass of 170 g is tied to a light string and spun in a circle of radius 1.35 m (on frictionless ice). The string breaks under a tension that exceeds 5.00 N. What is the maximum speed of the puck without breaking the string? (Express your answer to three...

*September 30, 2016*

**math**

zack is planning to make a flower garden he has 24 one yard sections of fence that he plans to place around garden he wants the garden to be aas long as possible what longest length he can use for the garden how wide will the garden be is this area prerimeter or side length

*May 9, 2016*

**algebra**

A pair of lines intersect at the point (-3,4). which pair of equations could represent these lines? a. 2x+3y=6 y=x-7 b.2x+3y=6 y=-3x+4

*April 4, 2016*

**SURE/math**

What is the total perimeter of the three tiles? If each square tile is measures 8 inches on the side?

*December 5, 2015*

**english**

what is the word for release

*September 17, 2015*

**Mathematical Economics and Linear Programming**

Using the quotient rule, find the derivation of the following function: a) (ax^2+b)/(cx+d) Here is my work but i need help because am lit bit confuse solution a) (ax^2+b)/(cx+d) df/dx = (2ax)(cx+d)-(ax^2+b) (c)/(cx+d)^2 df/dx = 2acx^2+2adx-acx^2+bc/(cx+d)^2 df/dx =acx^2+2adx+...

*August 12, 2015*

**Precalculus (Logarithmic)**

Ok and thanks alot. But those two are without parentheses.

*August 5, 2015*

**Precalculus (Logarithmic)**

Express each of the given question in logarithmic form. i) e^2x = 15 ii) e^x-4 = 1/2 iii) a^x+1 = 5 Solutions But am not sure if this is the way it should be done. i) e^2x = 15 In (15) = 2x ii) e^x-4 = 1/2 In (1/2) = x-4 iii) a^x+1 = 5 Log 5 with base "a" = x+1

*August 5, 2015*

**Precaculculus**

Suppose you are told that log(2)=0.3562 and log(3)=0.5646. All of them with the base of 'a'. Find: i) log(6) ii) log(9) Solutions i) log(6)= log (3)(2) = log 3 + log 2 = 0.5646 + 0.3562 = 0.9208 ii)log(9)= log 3^2 = 2 log 3 = 2 (0.5646) = 1.1292

*August 3, 2015*

**Math**

Suppose that a certain material has a half life of 25 years, and there are A(t)=10(1/2)^t/25 grams remaining after t years. find: i) initial amount i) Amount after 80 years Solutions i) A(0)=10(1/2)^(0/25) =10(1/2)^0 =10(1) =10 ii)A(80)=10(1/2)^(80/25) =10(1/2)^(16/5) =10(0....

*August 3, 2015*

**Social Studies**

Is there a website that talks about rebuilding the twin towers?

*May 25, 2015*

**English**

Are these right "Stamp collecting" is fun for children and adults alike. (Subject) Which "of my stamps" do I like most? (Adverb) Collectors "engaging in their hobbies" are never bored. (Adjective) Many residents of Hawaii work in "fishing&...

*November 29, 2013*

**physics**

An ambulance car is going with a speed of 60 km/h, while a car is trying to go around it in a circle with a speed 50 km/h. If the sound that ambulance car emits has a frequency of 1 kHz, which frequency does the driver of the car hear in Hz when the ambulance car is in the ...

*September 22, 2013*

**Chemistry**

how many ml of .5M HCL are required to neutralize 600 mg of Mg(OH)2?

*May 20, 2013*

**mathematics**

how do I cope with intermediate mathematics e.g log rhythms?

*October 16, 2012*

**Science**

the speed of the two cars vary, but in your case if it is a 2000-kg car their speed just afterward is 2059 miles per hour.

*October 16, 2012*

**Chemistry**

that is right. but if it is 0.850 grams of Na2s04 it is completely diffrent.

*October 16, 2012*

**math**

the answer to the problem is 408 square inches

*August 30, 2012*

**physics**

x=1/2*g*t^2 x=910-150=760m a=9,81m/s^2 t=sqrt(x/(0.5*g)) that is t=sqrt(760/(0.5*9,81)=12,44s=12s

*April 21, 2012*

**math**

4x^3 = 1.12x10^-12 x= 6.54 x 10^-5 what steps do you take to get that answer??

*January 18, 2012*

**Math**

if i have: 31x^5=1.4x10^-85 what would x equal?

*January 18, 2012*

**MATH**

If I have: 4x^3 = 2.80x10^-9 what would x eqaul and how would i figure that out?

*January 17, 2012*

**MATH**

ok, so what if you have 4x^3 = 2.80 x 10^-9 what would x equal in this case and how would you get it? I really appreciate ur help. As you can tell i am slightly confused. Ur explanations are helping greatly.

*January 15, 2012*

**MATH**

why do you square root it twice?

*January 15, 2012*

**MATH**

I have 27x^4 = 1.1 x 10^-36 I have to figure out what X equals. The answer is x= 4.5 x 10^-10 How do you get that for the answer??

*January 15, 2012*

**trigononometry**

(12x2.17) cos0 120.6

*June 7, 2011*

**criminal justice**

help me with this assignment

*January 27, 2010*

**Economics**

Poland Spring, Dasani and Aquafina who together produce 90% of all the bottled water consumed in the US, each spend well over $300 million a year on television advertising campaigns, promoting their water brands. If one firm is advertising its brands heavily, the others must ...

*July 27, 2009*

**math**

how do i find the area of a shape

*November 27, 2007*

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