Emmanuel

This page lists questions and answers that were posted by visitors named Emmanuel.

Questions

The following questions were asked by visitors named Emmanuel.

Your boss wants to send a brief email message welcoming employees recently transferred to your department from your Hong Kong branch. They all speak English, but your boss asks you to review his message for clarity. What would you suggest your boss change...

1.) The average velocity of Cl(2) molecules is 2.50 x 10^3 m/sec at a temp of 25 C therefore the average velocity of helium atoms is ?? [ i got the answer 5.94 x 10^2 m/Sec is that right] 2.) A gas is allowed to expand from 1.5 : to 12.5 L against a const...

a study of 40 professors showed they spent on average 13.6 minutes correcting a student papers. Given a standard deviation of 17, the 90% confidence interval of the mean time for all the test papers is what?

A battery of three cells in series each of emf 2v and internal 0.5 ohms is connected to 2ohms resistor in series with a parallel combination of two 3ohms resistors (a)draw the circult diagram (b)the effective of external resistance (c)the current in the c...

Suppose you plan to save $12 per week.You have already saved $7.50.In how many weeks will you have saved at least $100?

Ground water intially contains 1.800mg/L of iron as Fe3+. What must the pH be raised to in order to precipitat all but 0.30mg/L of iron. The tempertaure is 25 degrees celcius

How do i determine the mass of ice initially in the calorimeter when dry saturated steam is passed into 250g of a mixture of ice and water in a calorimeter of thermal capacity 45J/K when all the ice has just melted,and the mass of the content in the calor...

How to solve a three set problem

Write a program, which writes the last two (2) digits of the student ID 1119939 into the 8051 microcontroller’s internal RAM addresses from 40h to 6Fh with the same data. Assume the last two (2) digits of the Stamford student ID(1119939) is a decimal numb...

Write a program that will count down from the last (4) digits of the student ID 1119939 until zero. Once completed, the function will reset and count down again. Assume the last two (2) digits of the student ID is a decimal number, and crystal oscillator...

A warehouse having a volume of 10,000 ft3 and a floor area of 1000 ft2 is to be built. The cost of constructing the floor is $6.00/ft2, the cost of the roof is $10.00/ft2, and the cost of the walls is $20.00/ft2. If W is the width, L the length, and H the...

I have trouble with math, I'm very good at science and when I grow up I want to be a zoologist, the problem is that. MATH I try to pay attention at school but the teacher is very boring and I'm one of those people that can't pay attention when bored. Any...

A man 6 feet tall is standing 9 feet from a 18 feet tall light pole. His shadow cast 15 degree. What is the angle formed from this equation?

Calculate the molarity of a solution containing 58.5mg of NaCl in 2.50mL of solution.

Argument that Roger Sherman uses to convince people to ratify the constitution?

Math Question: winning time of a marathon is 1 hour, 24 minutes and 11 seconds... How do I find the average speed?

Pt, (H2) 1atm | CH3COOH 0.1 M, CH3COONa 0.15M || NaBr 0.1M, AgBr(S) | Ag write the cathodic, anodic and final reactions.

Jada, Nicholas, Nita, and Calvin shared $60. Jada received 1/2 of the total amount of money Nicholas, Nita, and Calvin received. Nicholas received 2/3 of the total amount of money Nita and Calvin received. Nita received 3 times as much as calvin. (a) how...

Why did Airhead eat the dollar he brought to school

For y=2x +3 whenx=4, what does y equal?

Solve for x -2 + 2x = -x + 2 + x

Topic:4th Amendment exception to searches and seizures (Terry v. Ohio) what impact did Terry v. Ohio have on law enforcement officers? Hint: what have been the benefits or hindrance of Terry as it relates to officer safety?

Chad buys peanuts in 2-pound bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2-pound bags of peanuts should Chad buy so that he can fill the 5/6-pound bags without having any peanuts left over?

HOW DO YOU SIMPLIFY SURDS WITH CUBED 98 ROOT?

step by step on how to solve this problem 2420/(570+r) = 2140/(570-r)

The position of an object moving in a straight line is given by the function , where s(t) represents distance traveled and t represents the time the object has been in motion. How long (to the nearest tenth) will it take the object to move 17 meters?

Bladder infections are often caused when the bacteria E. coli reach the human bladder. Suppose that 3000 of the bacteria are present at time t = 0. Then t minutes later, the number of bacteria present will be a) How many bacteria will be present after 10...

man on 12m tower, he observed two houses. the angle of depression to one of them was 6' and the other is 3'. how far apart the houses are. Calculate the distance between the house if: a)the houses are on the same side of the tower b)the houses are on oppo...

Two companies charge these rates for printing a brochure : Company A charges $175 for set up and 0.10 pet brochure Company B charges $250 for set up and 0.07 pee brochure A linear system that model this situation is C=175 + 0.10n C =250+ 0.07 Where c is t...

The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans: Plan 1 : they are going to open up 1850 new seats in the endzone that will be reserved for family seating. they project that they...

The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans: Plan 1 : they are going to open up 1850 new seats in the endzone that will be reserved for family seating. they project that they...

The S.I. Unit of displacement is what?

The standard piece of apparatus used to measure distance in the laboratory is what?

The position of a point A is specified as A (5.7).the y-coordinate is ?

For $5 you can buy a ticket for a drawing for a prize of $2,000. The probability of winning the prize is 0.001. How much money to you expect to win

Show three ways to make 0.60 without using pennies

Using Simpson role to find the denvatives of x=(y²+3x+7) (x²-4)

which of the following is not scalar quantity. 0.20m 5.0m/s 10.0m/s[E] 110km/h

1.The sound from a bolt of lighting travelled 4.08km in 12.0s. whats was the spped of the sound in metres per second? 0.340m/s 49.0m/s 340m/s 343m/s 2.A vehicle is travelling 1.0x10^2 km/h. what is the spped of the vehicle in metres per second? 28m/s 27.8...

whats the difference between average speed and instantaneous speed?

A vehicle is travelling 1.0x10^2 km/h. what is the spped of the vehicle in metres per second? 28m/s 27.8m/s 3.6x10^2m/s 1.0x10^4m/s

Within the Gaetz Lake Sanctuary in Red Deer, Alberta, is a looped trail that is 4 km long. Suppose a person walked all the way around the looped trail in 1 h, ending where he or she started. Which statement best describes this person’s motion over this ti...

Starting from rest, an object rolls down a long ramp with a constant acceleration of 1.72 m/s2. After rolling for 4.75 s, what is the magnitude of the ball’s final velocity? A. 9.81 m/s B. 8.17 m/s C. 6.30 m/s D. 4.09 m/s

A traffic-safety engineer is designing a deceleration lane. She is basing the length of this lane on the distance needed to slow down from 126 km/h to 65 km/h in 8.0 s. How long will the deceleration lane be? A. 2.1 x 10^2 m B. 3.8 x 10^2 m C. 4.2 x 10^2...

A baseball flew 19.6 m straight up into the air after being hit by a bat. How long should it take for the ball to return from its maximum height? A. 1.02 s B. 1.91 s C. 2.00 s D. 3.99 s

A skydiver steps out of a helicopter hovering thousands of metres above ground. After 3.5 s of free fall the skydiver pulls the rip cord. What is the skydiver’s displacement during the 3.5 s of free fall?

9. The Pleistocene Epoch, from 1.7 million years ago to 10 000 years ago, was marked by A. a lack of oxygen B. the presence of warm, tropical seas C. the southern movement of the North American continent D. the formation of glaciers that covered parts of...

a stone projected horizontally from the top of a tower with a speed of 4m/s lands on the level ground at a horizontal distance 25m from the foot of the tower. calculate the height[g=10m/s2]. is it u squared divided by 2g

Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours, and on the trip back averaged 40 mi/h. She returned home 41 hours after leaving. How many miles is City A from City B?

the electron beam in a television tube consists of electrons accelerated from rest through a potential difference of about 20000v.what is the speed of the electrons?(ignore relativistic effects).electron rest mass is 9.11 X 10^-31kg and electron charge is...

a)Write a function o represent the area of the rectangle. one side - 5x+15 other side - 31-2x b) Graph the function- lebel x and yint c)what dp the x-intercepts represent in this situaltion? d)Does the funtion have a maximum value in this situaltion? Does...

Solve 3 - x = √x2 - 5 . State any extraneous roots that you found. Identify the values of x for which the radical is defined.

Y=|X^2+3x-4| find dy/dx?

Sin3A=3sinA-4sin(x/2)^3 find x interms of A? PLZ show working got no ideal at all

Steve the builder was plastering a wall while standing on a ladder..he noticed that the number of rungs/steps below,the rung he was standing on was 1/3 of the numbers of rungs above where he was standing. Then he climed another 10 rungs/steps and he also...

Out of 300 student in final year in senior secondary school, 200 are offering biology and the150 offering chemistry how many are offering neither biology nor chemistry

graph of 5x-2y=6 value 0=2

The position vector of m in the same plane are as the point a and b is given by m=1÷2(a+b).if the vector A(-4,-3),B(2,-1).What is the direction and the relationship of vector AM and vector BM

Please I need a detailed explanation, am stuck doing this assignment, at what temperature in kelvin will co2 molecules have an rms speed equal to hydrogen at 20 Celsius?

The first term of an AP is equal to thrice the common difference. What is the sixth term of the AP,if the common difference is 8

. The three consecutive terms of an exponential sequence (G.P) are the second, third and sixth terms of a linear sequence (A.P). Find the common ratio of the exponential sequence.

A box contain 40 pens of equal sizes.10 of them are green and 18 are red.if a pen is chosen at random from the box,what is the probability that is neither green nor red? Soln total number of pens=40 number of green pens=10 number of red pens=18 number of...

A ladder leans against a vertical wall of height 12m.if the foot of the ladder is 5m away from the wall,calculate the length of the ladder.

A bullet is fired horizontally from the top of a cliff with a speed of 30m/s.assuming that there is no air resistance, what will be its speed 3sec later?

A projectile leaves the ground at an angle of 60degree to the horizontal.it initial kinetic energy is E. Neglecting air resistance, it kinetic energy at the highest point of the motion is

The efficiency of a machine is 80%.calculate,the amount of energy needed by the machine to do work of 150joules.

A stick is 203cm long. The stick is cut into n pieces, each the same length. What is the length of each piece?

Eric is twice as old as Ernest, who in turn is 5 years older than mike.if their total age is 47 years, how old is each of them?

how many unpeeled electrons are in this configuration 1s2 2s2 2p6 3s2 3p3

how many unpaired electrons are in this configuration 1s2 2s2 2p6 3s2 3p3

A bicycle has a radius of 28cm How far does it travel in four complete turns

A metal x form different chlorides.If 12.7g of chloride A and 16.3g of chloride B contains 7.1g and 10.7g of chlorine respectively show that the figures agree with the law of multiple proportions. write their formular

A stone, 2kg is projected vertically at a velocity of 5m/s at an Angle of 60° Calculate I.Time taken to attain maximum height II.maximum height reached III.The range

A commuter plane flies from City A to City B, a distance of 90 mi due north. Due to bad weather, the plane is redirected at take-off to a heading N 60° W (60° west of north). After flying 57 mi, the plane is directed to turn northeast and fly directly tow...

john's age in the next ten years will four times his age five years ago. How old is john now?

if he travels 7km N 30 degree E and 10km east find the resultant displacement

Which of the following homogeneous and which are heterogeneous? Blood, carbon dioxide,Rock, steak,iron, concrete, air,oxygen, salt, milk.

The teet of two vertical poles of height 3m and 7m are in line with a point P on the ground. The smaller pole being between the taller pole and P and at distance of 20m from P the angle of elevation of the top T of the taller pole from the top R of the sm...

A rectangular pyramid that measure 10cm by 7cm. Calculate A the surface area B.volume of the pyramid C.the sides of a triangle.

in suv of which the total mass is 800 kg is travelling with an initial velocity of 200m/s suddenly observe a stationary dog 50m ahead along its path if the driver exerts a break of 2000N,what would happen?

How many grams of commercial C2H4O2 (97% pure by mass) must be allowed to react with an excess of PCl3 to produce 75.0g of C2H3OCL if the reaction has a 78.2% yield?

Calculate the volume of carbon 4 oxide gas at s.t.p when 5g of zinc trioxocarbonate is heated strongly.

Byron wants to use the distributive property to rewrite the addition problem shown so that the numbers left in the parentheses have no common factor except 1. (48 + 36) Which is an equivalent expression that has numbers in the parentheses whose only commo...

After 0.6523g of CoCL2 .6H2O is heated, the residue has a mass of 0.3423g. Calculate the percent H2O in the hydrate. What is the formula of the hydrate

show the limit of |X| if X tend to 0

A uniform beam 6m long weighing 4kg rests on supports p and q placed left and right 1metre from each end of the beam. Weight of mass 10kg and 8kg are placed near p and q respectively one each end of the beam. Calculate the reactions at p and q.

If x is an acute angle, tanx =3/4,evaluate coax _sinx÷cosx+sinx

An american car travels 32 miles on one gallon. A European car travels 12.7 kilometers on one liter of gas. Wich car gets better gas mileage? Explain your reasoning.

calculate the percentage by mass of silicon tetrachloride

In a circle of radius 12cm a chord is drawn 3cm from the centre. Find the angle subtended at the centre

In the laboratory, a student heats 96.27 grams of zinc to 98.06 °C and then drops it into a cup containing 76.46 grams of water at 22.44 °C. She measures the final temperature to be 30.31 °C. Using the accepted value for the specific heat of zinc (See the...

A student heats 64.05 grams of nickel to 97.80 °C and then drops it into a cup containing 81.11 grams of water at 21.79 °C. She measures the final temperature to be 27.84 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter c...

8/2=x+3/4, solve for x

one angle of an octagon is 56 degree find each of the other angle if they are equal to each other

a number is added to 10and12.if the product of the sum obtained is48,find the number

Evaluate 3 log 2 + log 20 _ log 1.6

A boy went to a supermarket and spends 2/5 of his pocket money on biscuit, 1/4 on plantain chips and the remainder on drinks. i.wha fraction did he spend on plantain chips and biscuit ii.What fraction did he spend on drinks

Describe briefly how pure dry crystals of calcium chloride can be obtained from its solution

Sage has a hot dog stand. Last week he spent $13 for hot dogs and supplies. He earned $25. What was his profit?

a pupil of mass 50 kg runs a flight of 20 stairs each 25cm high in a time of 20 seconds (take g= N/kg calculate the pupil s gain in potential energy

Answers

The following answers were posted by visitors named Emmanuel.

which of the following is not a component of a crime

If 2 box are in a bag one is taken out what is the probability that a box is taken from the bag

Learn to whistle

A battery of three cells in series each of emf 2v and internal 0.5 ohms is connected to two ohms resistors in series with a parallel combination of two 3ohms resistors? (a) draw the circult diagram (b)the effecive of ex ternal resistance (c)the current in...

M1v1 +M1v1=(m1+m2)v (3*10) + (0.5*0)=(3+0.5)v 30 + 0 = 3.5v 30 =3.5v v =8.57m/s.

The answer isn't even in your options; the correct answer is 119.9mm Hg, 160.1mm Hg.

The Iroquois form of government was a democracy. They had councilmen for each tribe just like how the US have councilmen for each sate. They also had women rights.

The answer should be 'message'. We read it everyday, d 3rd and 4th letters are the same and d 5th 6th and 7th letter increases everyday which is 'age'

n1sinQ1 = n2sinQ2 for air/glass interface Angle = 27degrees which is sinQ2 n2sinQ2 = n3sinQ3 for glass/water interface

7 five-pack stickers and 3 eight-pack stickers

7 five-pack stickers and 3 eight-pack stickers 5x+8y=59 5(7)+8(3)=59 35+24=59 59=59

The answer is Chicago. You basically pick the number of letters stated in the fraction. For example, 3/7 of a chicken. The word 'chicken' has 7 letters. So, you pick the first 3 as stated in the fraction. Then, you do the same for other given words too an...

X equals minus seven over 3 or seven over three. We've been dealing with this in my school so I'm certain as death about it.

thx but do you think c) is right? what about the 6

ik you cant graph here, but plz can you tell me the x and y intercept so i can do the grpgh

it will be less than 365 days for sure, because without the sun earth will be spinning fast

what do you mean show my work. do you mean show what i have done, if i don't know the question how can i show my work? i just need to know how to do it. so i can practice on it.

yes i passed them with good grades

Name the 4 isomers of the compound with molecular formular c4h10o

7.2x10^6?2.88x10^4 =594.2

It is computed by the average distance from the average or average of all the averages for multiple sets of data. It is important because it measures the variability in the set of data. It helps in finding how close the values of data set are to the mean....

Ww=75-25=50g=wt of water ww=v*D=50g V*1g/cm^3=50 v=50cm^3=vol of water 65-25=40g=wt of the liquid D=40g/50cm^3=0.80g/cm^3=density of the liquid.

Vector is quantity that is one which has direction as well as magnitude

How did you come ot x/2=A?

Educate you acdemics, morally & spritually

graph of 5x-2y=6 value=0=2

Write on the topic bogs should not help in the kitchen.help

Elena packed 48 cubes into this box each cube has edges that are 1 centimeter how many layers of cubes did elena make?

Elena packed 48 cubes into this box each cube has edges that are 1 centimeter how many layers of cubes did elena 5?

c1*v1= c2*v2 if c1=18.10m, v2=?, c2= 0.01m, v2=125ml. v2=0.01*125/18.1 v2=0.069ml

Wow incredible nonsensical and then you are not sure of this questions you asked.

72 48 32 arithmetic or geometric

D=150mm =0.15m t=2mm =0.002m T=400MPa =400E6Pa T=F/Al F=TAl =T*Pi*D*t =400E6*3.1416*0.15*0.002 =376911.12N =376.9KN

Whose cake is the best

i = 38° and r =65°

a hemispherical tank of diameter 10m is filled by water issuing from a pipe of radius 20 cm at 2m per seconds. calculate correct to 3 significant figures in time in minutes it takes to fill the tank.

WHICH STATEMENTS BEST SUMMARIZES THE PARAGRAPH'S MAIN POINT?

What safety precautions are necessary in this experiment?

Cocl2 is often used in hygrometers. Hey? And how?

Please answer this question for me

What is the bigger angle then

ANSWER to the question

T^2 = t - 4 ; t

can you please help me with the answer

You were supposed to convert 50g to kg then find weight

please help me to solve , I'm confused

I have get it now and the answer is Ka =2.1×10^-5

Draw the Venn diagram

How was the initial velocity 4.0

Correct answer is C.

Let the radius be r R^2=5^2+15^2 R =√250 R =15.8 Depth of water = 5 + 15.8 = 20.8

How come the 3.00mg the mass of carbon instead of CO2. Please explain

1. At d= 2f 2 real 3.inverted

Whats is the answer?

sorry i haven't see how to solve or please draw for me.

Illustrate information on a Venn diagram

u guys didn't answer my question

What does weigh on venus

Help me solve it out

It from the equation 🤗🤗

I have not seen an answer

what of the diagram pls

question 25 and 36

What is 20 element

Still waiting for an answer.........

Peer pressure destroy a character

Peer pressure destroy a character write against the motion

Write against the motion peer pressure destroy a character write for the motion

Debate . Write against the motion is peer pressure destroy a character

Against for motion

Write against for the motion

Write an argumentative speech about peer pressure destroy a character write against for the motion.

Where is the answer