A. P625

B. P1000

C. P1250

D. P1625]]>

This part of text I do not know what to do with do I just add 4 to the 19 who also dont like pollution?

Also The value for the whales which dislike pollution and Captain Ahab is 3 but the the value for all 3 actors disliking everything is 6.

This will leave me with a minus value 3-6 = - 3 is this right do I subtract minus three from both the total...

Venn Diagram Question: How many whales were surveyed?]]>

A 158 lb man runs on a horizontal wet surface at 3 mph before decelerating to 1.5 mph about 4 feet before a right turn. There are cement stairs at the turn that he plans on using to enter a home. Before he gets to the turn he slips (at this point his right foot has made it onto the cement, whereas his left foot is still on the grass). As he...

Force when slipping and falling]]>

Now, how to determine how many licence plates would cost

determine how many licence plates would cost $100]]>

I need to know the total number of products and reactants in ∆Hf (kJ/mol)

The substances are:

C3H8+ 5 O2= 3 CO2 + 4 H2O please help me>

please pm me or relpy wth thread plz I need hep]]>

In cathode ray discharge tube,negative electrode is cathode and positive electrode is anode.

But in case of direct current circuit, it is the positively charged terminal of a voltaic cell or storage battery that supplies current and anode is the negatively charged terminal of a voltaic cell or storage battery that supplies current.

It is a combination of birthday dates: 27 01 1984, 18 09 1995 and 25 12 2018, those are the dates. Is it possible to make some combination of those numbers to get 42 as a result?

Thank you soooo much, for a help.

Thank you, thank you, thank you...]]>

block are 0.450 (kinetic) and 0.520 (static), what is the maximum rate of rotation (in revolutions per minute) that the disk can have before either the block or the penny starts to slip?]]>

I also read the chemical formula for caustic potash having same chemical name Potassium Hydroxide =KOH.

I want to know what is the difference between these two chemical compounds in terms atoms, molecules, ions?

Why the name of (1) is not Sodium Hydroxide as it contains sodium(Na)?]]>

The cost of Fairness?]]>

I am stuck on this question

The decomposition of nitroglycerine is given by the following

2C3H5N3O9 = 6CO2 + 5H2O + 3N2 + 1/2O2

using the following heats of formation, determine the energy released in the decomposition of of nitroglycerine.

heats of formation of CO2(g), and H2O(l), C3H5N3O9 are -393, 242 and -364 kJ/mole, respectively

I am using hesses law to try and work this out

I multiply the heat of formation equation of Co2 by 6 and reverse it and multiply the heat of...

heats of reaction equation]]>

The question states:

The circular clock has a diameter of 14 inches and its minute had has length 6 inches. It is placed on the wall so that the center of the clock is 66 inches above the ground. Which of the following graphs could represent the...

Which graph represents the distance from the minute hand to the ground with respect to time?]]>

1HE1C +JDF0= 2H7GC from calculator

By hand I couldn't get the H

Using

1

2

3

4

5

6

7

8

9

A=10

B=11

C=12

D=13

E=14

F=15

G=16

H=17

I=18

J=19

K=20]]>

Given that after 1 second the ball travelled 10 ft in the air, I had the initial velocity as 10 ft/s. At the apex, the...

Finding Time for a Kicked Ball]]>

Math game]]>

A boat costs x to maintain and I and a friend decide to split the costs 60/40, where I put in 60% of the cost.

However, I will have the boat less than my friend, he will have it 3/8 of the time and I will have it 5/8 of the time.

So what is my actual cost on a weekly basis - it doesn't seem right to just multiply 60% by 5/8.]]>

I want wolfarmalpha solve this $h(v-t) = h(v+t)$ for $v$ where $h(x) = ax^2 +bx +c $. It is the vertex I want the students to figure out the vertex of the quadratic function. If $a,b $ and $c$ are numbers wolfarmalpha can solve that for any $t$.

Any thoughts?

Thanks]]>

ok not finding this easy but the red is mine drawn over the given book graph

also want to convert the whole thing to tikx graph]]>

\begin{tikzpicture}

%\draw (0,5) -- (6,5);

\draw [thick] (0,1) -- (18/2,1);

\node at (0,.8){0};

\node at (18/2,.8){180};

%\draw (1,5)--(1,4)--(2,4);

%\node at (1.5,4.1) {v};

\draw[step=.45 cm,gray,very thin,dashed]

%(-6,0)

grid (18/2,8);

\end{tikzpicture}

At $t=0$ a car is stopped at a traffic light

When the light turns green, the car starts to speed up,

and gains speed at a constant rate until it reaches a speed of $2 m/s \, 8s$...

up2.4.24 physics tikx problem]]>

Under what conditions does the ratio $\vec{A}/\vec{B}$ equal $\vec{A_x}/\vec{B_x}$?

Sorry but I had a hard time envisioning what this would be???

also thot I posted this earlier but I can't find it]]>

(a) How fast is the care going at $t=1\, s$?

$$v_t=v_0+at=45+10(1)=55\,\dfrac{km}{h}$$

at $t=2\,s$

$$v_t=v_0+at=45+10(2)=45+20=60\,\dfrac{km}{h}$$

(b) What is its speed at a general time t

ok this is a very simple problem but when you have constant acceleration there is no power on s?

also (b) what is meant by general time t is that an average or an equation.

also...

2.3.16 constant acceleration]]>

$$a(t)=-2.00 \, m/s^2 +3.00 \, m/s^3.$$

a. find the initial velocity $v_0$ such that the particle will have the same x-coordinate at $t=4.00\, s$ as it had at $t=0$.

b. What will be the velocity at $t=4.00 s$

ok sorry but I don't even know step one...]]>

A car, start from rest, accelerates in straight line at a constant rate of $2.0 m/s^2$

How far will the car travel in 10 seconds

use

$d=vt+\dfrac{1}{2}at^2\quad v=0\quad a=2\,m/s^2\quad t=10$

then

$$d=(0)(10\, s)

+\dfrac{1}{\cancel{2}}\left(\dfrac{\cancel{2}m}{\cancel{s^2}}\right)(10^2\cancel{s^2})

=100\, m$$

ok I know this relatively easy but it still new to me so hopefully ok]]>

2-3 You normally drive on the freeway between San Diego and Los Angel es at an average speed of

$105 \, km/h \, (65 \, mi/h)$ and the trip takes $2h$ and $20 \, min$

On a Friday afternoon, however, heavy traffic slows you down and you drive the same distance at an average speed of only $70 km/h \, (43 mi/h)$

How much longer does it take?

\begin{align*}

d_1&=r_1t_1=

\dfrac{65\,mi}{\cancel{ h }}

\cdot 2.33\, \cancel{h}=151.45\,mi\\

t_2&=\dfrac{d_1}{r_2}=...

How much longer does it take in heavy traffic and you drive the same distance at an average speed of only 70km/h]]>

motion formula $v=u+at$

so

$v = 6.00 \dfrac{m}{s}

+ 9.81 \dfrac{m}{s^{\cancel{2}}}{2.00 \cancel{s}}

= 27.6 \dfrac{m}{s}$

b) How far does it fall in 2.00s

distance formula $d= ut + \dfrac{1}{2}at^2$

so

$d=6.00\dfrac{m}{\cancel{s}}\cdot 2.00\cancel{s}

+ \dfrac{1}{2}\cdot 9.81 \dfrac{m}{s^{\cancel{2}}}{(2.00s)^2}

=12.00m+19.62m=31.6m$

c) What is the magnitude of its velocity after falling 10.0m?

graph...

4-39 magnitude of its velocity after falling 10.0m]]>

OK I just had time to post and hopefully ok but still typos maybe

the graph was done in Deimos wanted to try tikx but not sure about the polynomial

trying to as many physics hw before classes start on Aug 26

Mahalo]]>

https://mathhelpboards.com/calculus-10/calculate-closing-velocities-19402.html

The question I have is about whether or not I can use wgs-84 coordinates for x and y positions for the planes. Basically, I am given a bearing for each plane in degrees, a velocity for each plane in knots, and the wgs-84...

Closing speeds for airplanes]]>

At $t=8\, s$ its velocity is $-1\, m/s$

(a) Find the average acceleration for this interval.

$$a_{av}=\frac{v_2-v_1}{t_2-t_1}=\frac{\Delta v}{\Delta t}$$

So

$$a_{av}=\frac{-1-5}{8-5}=\frac{-6}{3}=-2 \, m/s$$

book answer $-2\, m/s^2$

ok I think this is ok

but again was wondering if a tikx graph can be made or is acceleration a curve?]]>

$v(t)=\alpha-\beta t^2$ where $\alpha=4.00\, m/s$ and $\beta=2.00 \, m/s^3$

At $t=0$ the object is an $x=0$.

(a) Calculate the objects position and acceleration as functions of time

(b) What is the object's maximum positive displacement from the origin.

before we answer these questions

how do you plot this using tikx]]>

$\text{A charge of $q_1=4.0 \mu \, C$ is at origin, and charge}$

$\text{$q_2=6.0 \mu \, C$ is on the x axis at $x=3.0 m$ }$,

$\text{(a) find the force on the charge $q_2$ } $

$\text{(b) find the force on $q_1$ } $

$\text{(c) how would your answer for parts (a) and (b) dffer if $q_2=-6.0 \mu \, C $ }$

ok I plan to take physics 151this fall

so trying to do some expected problems early]]>

First off here is my real world problem. At my workplace, we sell food that we make. However, we have to predict how much to make before hand otherwise if we run out, the wait will be too long and people get antsy (Most of the people get mad at me, but I'm just the cashier)...

form some model to predict a food items probability of you know being sold]]>

I want to know real time people are chatting vs. machine generator or someone manipulate.]]>

For the colourfully-annotated compound above, why aren't the splitting patterns and integrations for the red and blue set of protons "pentet, 6 H" and "octet, 4 H", respectively?]]>

The pictures look very nice. Example

I want to learn how to generate these figures myself in an

Basically I want to start with a polymino and then I want to be able to translate (by unit distance up-down or left-right) this polymino by pressing arrow keys and place it at the desired location. Then I want to pick another...

How to generate a tiling (in python if possible)]]>

How long does it take the truck to get from A to B in seconds?

There is a 15 degree slope on the ramp.

uk is 0.08

Assume there is no air resistance.]]>

Answer:

After doing some computations, I stuck here. $\frac{2(\log a+\log r)}{\log a+2\log r}=\frac{2(\log a)^2+3\log r\log a +2(\log r)^2}{(\log a)^2+\log r\log a}$

How to proceed further? (a= 1st term in G.P. r= common ratio of G.P.)

Answer is $\frac32$. I don't understand how it is computed. If any member knowing further computations to arrive at the answer, may reply.]]>

The distance between atomic planes in calcite is 0.30 nm. what is the smallest angle between these planes and an incident beam of 30pm x-rays at which diffracted x-rays can be detected?

Thank you so much for the help guys!]]>

As shown in the figure, V = 9.0 V, C1 = C2 = 27.2 μF, and C3 = C4 = 13.6 μF. What is the charge on capacitor 4?

I have tried using the summation of charges and then multiplying by the given potential but I am not getting anywhere, can any one help me?]]>

I am having trouble with how to start with one part of the question:

"In this exercise, we derived the PDE that models the vibrations of a hanging chain of length $L$. For convenience, the x-axis placed vertically with the positive direction pointing upward, and the fixed end of the chain is fastened at $x=L$. Let $u(x,y)$ denote the deflection of the chain, we assume is taking place in $(x,u)$-plane, as in the figure, and let $\rho$ denote its mass density (mass per unit...

Equilibrium]]>

Line 1 + Line 2 / 2 = 50% or (124.454) Then (124.454 + Line 1) / 2 = 75% or (124.459). Is there a easier or better way to get these results, cause this formula can't get percents like 60% or 40%.

PS: Wasn't sure what topic to put this under, first time here.

Thank you for your time and help!]]>

a. concentrated sulfuric acid

b. concentrated nitric acid

c. concentrated potassium hydroxide

d. concentrated hydrochloric acid

My first instinct was that all of them would since they are either concentrated acids or bases. I then tried to answer this question by consulting the MSDS for all of the above, but then all of them had "Causes severe skin burns and eye damage". So now, I am confused. Should we be considering the...

Help with lab work]]>

my workout: 4cm to 3m. 4 cm is length of model and 3m is real length.

so we have, mode = 10 cm long

so 4 cm to 10 cm: 10/4= 2.5 cm

for real length 3 X 2.5= 7.5 m.

I am not sure about my ans. Do i need to convert cm to m? Please anyone give better explanation. Thank you.]]>

So I need to make a solution with a concentration of 10% bleach to remove DNA contamination from equipment. So if I had 100ml of water I'd need 10ml of bleach to make a 10% solution. But it is the active chlorine in bleach that removes DNA so I'm trying to work out a calculation of how many ml of bleach I'd need if the active chlorine concentration within the bleach is 4.47g per 100ml. Can anyone advise how I...

Help with solution concentration]]>

a = b/e

b = 1 kg m

e = 1 kg m

what is a? including units

I assume it's to do with cancelling out the units when you divide but I really don't know what the answer is]]>

I am struggling with the question (attached) and was hoping to get some guidance and explanation on how to solve it.

I`m thinking that it is force down is equal to force up? But I could be wrong.

Any help greatly appreciated.

Regards,

James]]>

a) What is the pressure difference, P

b) What is the force acting on the roof, and what is the direction of this force ?

c) What is this force in pounds ? 1 N = .225 lb.

After...

Need help with Physics with trigonometry problems ?]]>

If for example, I have 20 specific 1/3 octave frequencies I am looking at, I can figure out a percentage of which of the 20 frequencies fall in tolerance fairly easily.

However, for the frequencies not in tolerance, I want to calculate how much they are in tolerance (how close was it to tolerance). Also, even if some frequencies are in and out of tolerance, what is the...

sound measurement percentage in tolerance]]>

a)What was the acceleration of each sprinter?

b)What were their respective maximum speeds?

c)Which sprinter was ahead at the 6.00-second mark, and by how much?]]>

I am trying to figure what is the correct phrase in the bolden phrase. The article, where I am doing my research on, states: Let S be the set of all 2x2 matrices with equal positive integral entries. Let T be the set of all 2x2 matrices with equal integral entries. My professors are getting frustrated due to the circle effect that I am making the same error over many times. So what is the correcting words that fixed? Is it "having" or other words.

Beginning:

Different...

writing a correction phrase]]>

I am trying to work my holiday (vacation) entitlement out. Can somebody please tell me if I am right?

I get 27 days holiday plus the bank holidays (public holidays). My work year is 1st of April to 31st of March. Due to Easter moving about that means this year I get 7 days as bank holidays. In total this year I get 34 days holiday entitlement

If I worked full time I would do 7.5 hours per day and work 5 days per week = 37.5 hours per...

Working out my holiday/vacation entitlement]]>

can it be here? or elsewhere? .. thank you...]]>

i can only think about individually calculating equivalents in mode 19 and then adding them up but there must be a better way then finding equivalents of exponentials of numbers from to 1 to 18, as this question is expected to be solved in around 2 minutes or less...]]>

Cannot seem to figure out the question below. I`ve attached an image of the question.

I basically need to find the mass of the weight W.

The hinged gate will open when the water height is 12ft.

The gate is a 5ft wide L shaped gate, hinged at point A.

I`ve gone down the line of CW = CCW moments but cannot seem to answer this.

Any help greatly appreciated. I really want to understand the entire process behind the calculation so I can work through these problems myself going...

Mass of weight to keep gate closed]]>

Single Variable and Multivariable Calculus

Discrete Math and Applied Math

Euclidean and Non-Euclidean Geometries

Trigonometry and Rational Trigonometry

Linear Algebra and Abstract Algebra]]>

Could anyone advise on how to answer below question (attached). I am struggling big time on this.

Thanks in advance.]]>

I have been out of education a long time and am now back at college.

One of my modules is Fluid Dynamics and I am beginning to struggle with the basics and could really use your help. I have attached a snip from one of the example questions below given to me by my lecturer.

I got the average pressure by using the formula, Pressure = density x gravity x height => 1.2 x 9.81 x 6m = 70.6Pa

Is this correct for the average pressure? Or should I have used half the...

Pressure and Force - Fluid Dynamics]]>

A tennis ball is thrown in the air by a man so that at the instant when the ball leaves his hand, the ball is 2m above the ground and is moving vertically upwards with speed9m/s^-1

The motion of the ball is modlledas that of a particle moving freely under gravityand the acceleration due to gravity is modelled as being of constant magnitude of 10 m/s^-1

The ball hits theground T seconds after leaving the hand

Using the model, find the value of T

I...

Mechanics help]]>

I've been doing this quiz that is mostly based around uncertainties. I've got a few questions that I've got wrong, and was wondering if someone could give each a brief explanation. There's a few to go over, so if you'd be willing, I would be very grateful.

I've had a crack at these questions, but my understanding seems to be lacking. I could probably keep going on the questions until I get them right, but I don't feel like that would help my understanding much.

Here's the first...

Uncertainty]]>

Trying to improve my level of maths and would like some help with the below question please.

A 10-year lease with annual rental payments to be made at the end of each year, with the rent increasing by 2% each year. If the first year rent is £20 and the OCC is 10% per year, what is the Present value of the lease?

The formula for present value of a level annuities is below (for a growing interest rate)

According to my book the answer should be...

If the first year rent is £20 and the OCC is 10% per year, what is the present value of the lease]]>

I substituted all known variables (including the gravity acceleration \(\displaystyle 10m/s^2\), with \(\displaystyle \sin37^{\circ}=\frac{3}{5}\) and \(\displaystyle \cos37^{\circ}=\frac{4}{5}\)) to \(\displaystyle x=v_0\cos\alpha t\) and \(\displaystyle y=v_0\sin\alpha t-\frac{1}{2}gt^2\). Substituting the...

[ASK] How much velocity is needed for the rock to be able to hit that bird?]]>

MillionPuzzleGame.com

I'd like to check I worked out the number of combinations correctly.

Also, how long would a computer take to solve it?]]>

- Thioesters with the formula ${C}_{4}{H}_{8}OS$?

I was able to draw 2 of them, but apparently, the answer key showed and stated that there are 4. I am confused about why the following two are possibliities:

I thought that thioesters are the functional groups where a C double-bonded to O is attached to both an R group and S, with S itself being attached to an R group. So, I was wondering how...

Functional groups]]>

The section of the game concerned involves collecting a finite number of points to achieve a goal.

The number of points varies but for the purposes of this question the number can arbitrarily be 920.

Any number of players may subscribe points and their total will eventually reach the goal.

Again the number...

On line game aid]]>

Here, I know that I'm supposed to find $v$, but I'm having a hard time setting up my equation(s) in order to reach the final answer. ]]>

Can someone please explain this with a diagram of the different possibilities (or, if not, just give a detailed explanation on how one should approach this)?]]>

(a) Find the current in the 10-cm-diameter wire loop with resistance 5.0 $\varOmega$ lying inside the solenoid and perpendicular to the solenoid axis.

(b) Repeat for a similarly-oriented 25-cm-diameter loop with the same resistance, lying entirely outside the solenoid.

I did part (a) fine, but I'm currently stuck on (b). There shouldn't be a very weak magnetic field outside the...

Electromagnetic Induction]]>

The thing is, when I did it, I used the formula $sin\theta = \frac{n\lambda}{a}$, and used the fact that $m = 1$ and $\pm 90°$ to solve for $\frac{a}{\lambda}$. However, I don't know if we're supposed to plug in $-90°$ for $sin\theta$, because that would mean that our ratio of $\frac{n\lambda}{a}$ would be $-1$ as opposed to just $1$ (when $sin90°$ was plugged in)....]]>

I am trying to calculate the price of Liquid Gas of 1 TCF - My researce revealed to me that:

1 - I know that 100 cubic feet (Ccf) of natural gas equals 103,700 Btu or 1.037 therms

2 - I know that price per MMBtu multiplied by 1.037 equals price per Mcf

3 - The price of one MMBtu is about 2.77 USD

4 - One BTU is equivalent to1.06 Joules

I'm very confused about how many "Naughts" are in MMBTu's or other shot forms as I have read in different websites holding different values? Like...

Calculating real world Liquid gas values]]>

This new calendar is based on 11 months with 20 days (4 weeks of 5 days) with 23 hour days. It has no leap years. Year 1 of this new calendar is based on January 1st 2290 AD of our calendar. I would really appreciate some help figuring this out!

The main...

Need help figuring out how to calculate new calendar]]>

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However finding its position in Wolfram was not possible, (Unless I should have left my computer on all night but I don't know if that would work either I did sit there for 10 minutes or so). Also I have no idea how to ascertain whether this...

Large Prime number unable to compute]]>

In 1927 the English Pound was USD 4.86. What would be the reverse for $1.00, with the Pound value expressed in £ s d.

Would there be a formula for this conversion?

Thank you for any help you may provide.

Regards,

P.N.]]>

]]>

Using the exact exponential treatment, find how much time (in s) is required to charge an initially uncharged 140 pF capacitor (C) through a 77.0 M[FONT="]Ω[/FONT] resistor (R) to...

when the capacitor have 94% of its final voltage.]]>

I have difficulties how to use the loop rule and junction rule for the diagram below.

I need to find R4 and V1 and V2 in this question.

Work:

J1: $I_1=I_2+I_3$

J2:?

J3:?

J4:?

Thanks,

Cbarker1

L1:?]]>

a. \(\displaystyle \frac{1}{2}\sqrt3\) second

b. \(\displaystyle \sqrt3\) second

I tried solving the (a) question by substituting the angle to the equation \(\displaystyle y=v_0\sin\alpha t-\frac{1}{2}gt^2\) and got 0 (the book uses \(\displaystyle 10m/s^2\) as the gravity acceleration), which is impossible since at speed 0 the thing must have been stopped, but when I determined the time when it...

[ASK] Determine its velocity and direction after √(3)/2 seconds]]>

I don't know how to do it if the initial velocity isn't known. Can someone help me?]]>