# Posts by bob

Total # Posts: 3,463

science
1.What two things happen to particles in a substance when the substance is heated? 2. What are the three most common states of matter on Earth? 3. Why does a liquid take the shape of whatever container it is in but does not expand to fill the container completely? 4. A certain...

math
Oregon is about 400 miles from west to east, and 300 miles from north to south. If the image of Oregon on a map is 15 inches tall (form north to south), about how wide is the image of Oregon on the map?

english
F\$UCK THIS F\$UCKING TEST

english
There are 19 questions on the test now, they're's no way any of these are right now. I hate this Odysseus book

english
fable

math
101

Help with science
5 c 7 c

physics
ind the force of gravity between a newborn baby (mass = 2.9kg ) and the planet Mars (mass = 6.4×10^23kg), when Mars is at its closest to Earth (distance = 5.6×10^10m).

physics
Find the force of gravity between a newborn baby (mass = 2.9kg ) and the planet Mars (mass = 6.4×1023kg), when Mars is at its closest to Earth (distance = 5.6×1010m).

algebra
The perimeter of a pool is 64 feet and has a width of x and a length of x-4. Write an equation and find both the width and length of the pool.

Chemistry
Calculate the enthalpy change of formation for the following reactions using Hess's law, and the enthalpies of formation given in Figure 4: b) MgO +2HCl --> MgCl2 +H2O c)NaOH+ HCl -->NaCl +H20 Figure4: the given enthalpies of formation compound values are: Mg(OH)2 is...

Physics
UCSC?

Physics
For a rotating object the equation for acceleration is a = v^2 / r. The force is F = m*a = m*v^2 / r. The force in this problem is the coulomb force. F = k*3q*q / r^2 = m*v^2 / r Since the kinetic energy is just m*v^2 / 2, and that's all we need, let's multiply both ...

Chemistry
Water is composed of 11.2% hydrogen and 88.8% oxygen. what mass of water contains 50.0g of 0xygen?

Physics
What is the frequency of a blue light with a wavelength of 489 nm

chemistry
An unknown substance has a mass of 28.1 g. The temperature of the substance increases by 16.3 degrees Celsius when 176 J of heat is added to the substance. What is the most likely identity of the substance? The table lists the specific heat capacities of select substances.

u are a major cheater

math
no solution

algebra 1
A gardner is calculating the perimeter of a rectangular garden, which has a length of 25 feet. The area of the garden is 400 square feet. What is the perimeter of the garden? Write the equation: could it be this? p=400/25+400/25+25+25

Algebra 1
ok thanks

Algebra 1
A jacket costs \$45. It is on sale for 20% off. What is the price of the new jacket? Write the equation.

Physics
A spring with a force constant of 5.4 N/m has a relaxed length of 2.63 m. When a mass is attached to the end of the spring and allowed to come to rest, the vertical length of the spring is 3.64 m. Calculate the elastic potential energy stored in the spring. Answer in units of ...

Algebra 1
Two students are absent. This is 1/8 of the entire class. How many students are in the entire class? Write the equation: How would you write an equation?

Algebra 1
thanks

Algebra 1
Two students are absent. This is 1/8 of the entire class. How many students are in the entire class? Write the equation: How would you write an equation?

Eng 2
Which phrase best describes this type of sentence? Sandy creates her best pieces of art late in the day. A) prepositional phrase modifying an adverb B) adverb modifying other adverbs C) prepositional phrase modifying other prepositional phrases D) preposition with compound ...

Math
I HAD THIS QUESTION TOO. ITS 13mm

MATH
Find the exact values. (a) tan(π/3) = ? (b) sin(7π/6) = ? (c) sec(5π/3)= ?

Math
Rewrite by completing the square x2 + x + 1

Math
Given the line 4x - 3y = 12, what is the distance between it and the origin I know the answer is 2.4 but how do u do it

A.. Because then number after 1 have to multiply the previous number (1) so 1*1=1. Then it subtracts the previous number 1-1=0. So the list would be 1,0,0,0,0 so on... So A is incorrect

Math
Which method did u use? I don't know if there is a faster way of doing it then what I'm doing

Math
Given the line 4x - 3y = 12, what is the distance between it and the origin Is it 2.4?

science
IS PLUTO A PLANET...

math crctprep
The Jones family drove a total of 3584 miles in 9 days. They drove the same number of miles each day. Which of the following is closest to the number of miles they drove each day?

Math

Math
if a b and c are constants and (x+2)(x+b)= x^2+cx+6, what is c

Language Arts
Can you define this in simpler terms: Determine the meaning of words and phrases as they are used in the text, including figurative and connotative meanings; the cumulative impact of specific word choices on meaning and tone. How might this be important in school, work, or ...

no because its stupid

Math
if x,y and y-(1/x) are not 0, then (x-(1/y))/(y/(1-x))=?

Math
If n! =1×2×2×...×(n-1)×n,find value of (3!)!/3!

Math
What is the value of 1000^2/(252^2/248^2) How do you do it faster

Math
If x≠0, x/2=y^2 and x/4=4y, then what is the x

Math
1. For all non-zero numbers x and y such that x= 1/y, what is the value of ( x- 1/x)(y+ 1/y)

Math
The ratio of w to x is 4:3, of y to z is 3:2 and of z to x is 1:6. What is the ratio of w to y?

Math
If x : y = 3 : 4 and x : (y + z) = 2 : 5, what is the ratio of x : z?

Math
if company 2 lease/maintenance totals \$125,000 for the year and company 1 spends 27% for lease/maintenance, how much is company 1 paying for their lease/maintenance?

MMath
21.45

MMath
Three servers work a party of 30 guests with a meal total of \$660.00. Restaurant policy adds a 15% gratuity to the bill for parties of 8 or more. If bartenders receive 15% of the gratuity, bussers receive 20%, and the rest goes to the servers, how much does each server get?

statistics
Solve the problem. Round to the nearest tenth unless indicated otherwise. The amount of rainfall in January in a certain city is normally distributed with a mean of 4.3 inches and a standard deviation of 0.3 inches. Find the value of the quartile .

Math help ms sue.
Dude. This website is meant for a teacher to help you review your homework. Ms. Sue is not obligated to do your homework for you.

Simplifying trig expression
sin(x+90) = ? cos(x+90) = ? Would the first equal like -sin(x)? Would the second equal uh -cos(x)? I'm not quite sure :/

LCM of two numbers?
the lcm of pi/2 and pi/3 is 6?

LCM of two numbers?
lcm of two numbers pi/3 pi/2 How do I do it? Would it be pi or pi/6? Thanks

science
the honeyguide bird leading the honey badger to the bees hive, both eat meat what is the symbiosis for this

Chemistry
How many grams of K2Cr2O7 (Potassium dichromate) must be used to make 250 ml of a0.125 M solution?

Thanks I really needed this im failing.

*The below is a scenario in which I have to make an IRAC for (not sure if you know what that is) but read the scenario and see if "Faye" is able to leave legally without ramifications. You must also list the legal rules that apply to this scenario..(for example, if ...

physics
A certain elevator car has mass 2200 kg and is lifted by cables driven by an electric motor. The efficiency of the lift system (motor, pulleys, cable, etc.) is 67.0%. As the elevator car moves at constant speed of 3.0 m/s it encounters 220N of friction coming from its tracks. ...

physics
A steel section of the Alaskan pipeline had a length of 65.1 m and a temperature of 15.8 °C when it was installed. What is its change in length when the temperature drops to a frigid -31.2 °C?

poetry
Could you help me answer these questions using William Cullen Bryant's poem, "The Prairies?" Thank you so much! I've attached a link to the poem. The poem text is widely available online if you just google the title/author Here are the questions I am ...

math
what would be an example of a parameter? i'm confused. i'm given this problem: How much time do undergraduate students at GMU spend each day reading and sending email? A survey was conducted by a graduate student asking students in the Johnson Center the above question...

Trigonometry
Hey

math
ITS 40 TONNES

Social Studies

Physics HELP!!
A gyroscope consists of a uniform disc of mass radius M= 1 kg and radius R= 0.3 m . The disc spins with an angular speed ω= 200 rad⋅s-1 as shown in the figure below. The gyroscope precesses, with its axle at an angle 30∘ below the horizontal (see figure). The ...

Physics
A woman on a bridge 75.0m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.00m more to travel before passing under the bridge. The stone hits the water 4.00m ...

Algebra
poop

math
Sheila is going to divide a 36-inch piece of ribbon into 5 equal pieces.She says each piece will be 7 inches long.whats the error?

Physics
A coin rests 18.0 cm from the center of a turntable. The coefficient of static friction between the coin and turntable surface is 0.390. The turntable starts from rest at t = 0 and rotates with a constant angular acceleration of 0.850 rad/s2. (b) At what angular speed (ω...

math
83383

Physics
A ball is thrown horizontally from the top of a building 45.2 m high. The ball strikes the ground at a point 78.9 m from the base of the building. The acceleration of gravity is 9.8 m/s 2 . Find the time the ball is in motion, initial velocity, and x and y components

Physics
Tom the cat is chasing Jerry the mouse across a table surface 2.4 m oﬀ the ﬂoor. Jerry steps out of the way at the last second, and Tom slides oﬀ the edge of the table at a speed of 4.8 m/s. Where will Tom strike the ﬂoor? The acceleration of ...

science
Well since one says gravity and the other says intertia... They both have a good reason to be the answer so I would say both intertia and gravity

science
inertia

C++
True or false: A function call statement transfers control of the program to the last statement in the body of a function.

physics
Net force F causes mass m1 to accelerate at rate a. A net force of 3F causes mass m2 to accelerate at rate 2a. What is the ratio of mass m1 to mass m2?

music history
I need an example thesis for a research paper. It can be about pretty much any music as long as its before 1750. (pretty much everything from Ancient Music - The Baroque period). Thanks in advance!

algebra
How do i solve an equation when there is a variable on both side of = and the two constants are equal x-16 = 16-2x 7-2x = 2x-7 The answer in both cases seems to = 0

science
A hockey puck sliding on a frozen lake comes to rest after traveling 272 m. If its initial velocity is 3 m/s, what is its acceleration (assumed constant)? Answer in units of m/s2

I dont' know

physics
12

Computer Programming using python
def test(): index = 1 prev_index = 0 count = 0 global largest largest = '' test = s[prev_index] while count < len(s): if ord(s[index]) > ord(s[prev_index]): test += s[index] index += 1 prev_index += 1 elif ord(s[index]) == ord(s[prev_index]): test += s[index] ...

Chemistry
When 1.00 kg lead (specific heat = 0.13 J g -1 C -) at 100.0 C is added to a quantity of water at 28.5C, the final temperature of the lead-water mixture is 35.2 C. What is the mass of water present?

Chemistry
How much heat, in kilojoules (kJ), is required to raise the temperature of 2.50kg Hg(l) from -20.0 to -6.0C? Assume a density of 13.6g/ml and a molar heat capacity of 28.0 J mol -1 C -1 for Hg(l). Please helpppppp .... thanks in advance

idk how to tag so maybe this might tag Ms. Sue here.

Could somebody help me I don't understand any of this. Could someone show me or tell me how to work the problems? 1. Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15 D.225 2.The length of a hypotenuse of a right triangle is ...

Math
12

Math - Trigonometry
Well think about it. The period of cos(x) is 2pi, 114pi = 358.14, so cos(x) repeats 114/2 = 57 times. So the answer is 57*2 = 144, but since cosine is split over y axis on the first period (calculatorsoup dot com/images/trig_plots/graph_cos_pi.gif) we add 1 to 144, and get 145.

Math
Oh, and 10/9 is the same thing as 1 1/9, so you were right.

Math
3^0+3^(-2) = 1 + 1/9 = 9/9 + 1/9 = 10/9 = 1.1111111...

science
what is a catalyst converter

Algebra
Never mind, I got it.

Algebra
Is the Riemann Hypothesis correct? Why or why not? Please show your work.

Physics
53

Math
Find the length of the arc (sector question) Radius=8cm Angle=27

math
Determine the vertex and the axis of symmetry for the function below: y=-4x^2-24x-36

math
I also need to know the answer of this work sheet P.S. Teachers this is a site for students. Please don't be pedantic and go away from the site.

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