# sonia

Newest questions posted by sonia-
## Math

Charlene takes the bus to work in the morning then walks home for lunch walks back to work and finally walks home in the evening the distance one way is 600 meters how far does she walk each day between home and work -
## History

What evidence in the declaration is there of religious faith? How did the religious faith influence the ideas expressed the declaration? -
## math

The temperature has been going down at a constant rate. In 8 hours it went down 16 degrees. Which expression best shows the temperature change each hour? -
## Math

tell of 100 trays of 100 cookies is greater than, less than, or equal to 1,000? -
## maths

using a scale of 1:250 draw an accurate plan of a rectangular garden measuring 25m x 15m. -
## biology

A man with brown eyes and dark hairs (whose father was blue eyed),marries a woman with blue eyes and blue curly hairs (whose mother was red straight hair). They have 4 children. What is the genotype of children 1)BbRR:BbRr:bbrr:bbRR 2)BbRR:BbRr:bbRr:bbRR -
## math

Kim bought a total of 48 cookies. Each cookie costs $.55, including tax. Of the cookies she bought, 3/8 were lemon cookies. What was the total cost of only the lemon cookies? -
## Grammar

This week's "steal of the week" claims that there are hotel specials available in last Vegas for $18.00 a night at several of the casinos -
## chemistry

calculate the weight in grams far a given solution of sodium thiosulphate crystals of strength 2.0M -
## chem

what mass of zinc will be required to react completely with 100cm3 of a 1.0M hcl. -
## chemistry

What mass of NaHCO3 must be added to 100ml H2O to produce a solution with a pH of 10? K1(H2CO3)=4,6*10^-7 K2(H2CO3)=4,4*10^-11 -------- Help! Thank you -
## math

the elevation of a tower from a point on the ground is 30 at a point on the horizontal line passing through the foot of the tower and 100 metres nearer it, the angle of elevation is 60 find height of the tower and the distance of the first point from the -
## maths

Fuel wood logs sawed 53 times and 72 pieces made. If the cutter saw only one at a time how many there were before cutting? -
## math

Estimate 5/30 as a percentage. -
## math

Estimate 5/30 as a percent. -
## math

After Khalil gave Benjamin 3/5 of the rocks in his collection, Benjamin had 70 rocks. If Benjamin had 25 rocks in the beginning, how many rocks did Khalil have in the beginning? -
## algebra

If Will gives Molly $9, he will have the same amount of money as her. If Molly gives Will $9, the ratio of the money she has to the money Will has will be 1 : 2. How much money does Will have in the beginning? -
## math

The ratio of Jane's number of soda to Pat's number of soda is 2 to 3. If Jane has 16 cans of soda, how many cans of soda does Pat have? -
## math

Greg's number of pencils is 3/5 the number of Tom's pencils. Together they have 56 pencils.How many pencils does Greg have? How many pencils does Tom have? How many more pencils does Tom have than Greg? -
## math

Alex's car takes 10 gallons of gas for 20.10 miles. If Shon's car uses 3/10 the amount of gas as Alex's car to travelled, what is the mileage for each person's car? How man gallons of gas would each need to travel 4.5 miles? -
## math

A train ran for 6 minutes and 37 seconds in one mile. Another train travelled 7 minutes and 35 seconds in one mile. How long (minutes/seconds) would it take each train to travel 16 miles? -
## chemistry

In the sun, nuclear fusion takes place. If the decrease in mass isa 0.006 50g, how much energy is released? -
## Peel Adult Education Centre

In the sun nuclear fusion takes place. If the decrease in mass is 0.006 50 g, how much energy is released? -
## Trignometry

A calculator is broken so that the only keys that still work are the \sin, \cos, \tan, \cot, \sin^{-1}, \cos^{-1}, and \tan^{-1} buttons. The display initially shows 0. In this problem, we will prove that given any positive rational number q, show that -
## malay

How do you respond to these malay questions? Siapakah kawan baik anda di sekolah? Adakah kamu suka akan matapelajaran matematik?Mengapa? Makanan apakah yang paling anda gemari? Adakah anda suka membaca buku novel? -
## science

is that electric current occupies space? -
## Quantum Physics

Suppose that ψ1 and ψ2 satisfy the time independent Schrödinger equation for some potential. Which of the following necessarily also satisfies the Schrödinger equation? Cψ1ψ∗2 aψ1+bψ2 Aψ1/ψ2 Cψ1ψ2 In accorda -
## Quantum Physics

Suppose a particle has wavefunction ψ(x,t=0)=Aexp(−x22l2). What is the average value (expectation value) of p^, ⟨p^⟩, for this state at t=0? -
## Quantum Physics

The variance σ2X=⟨(X^−⟨X^⟩)2⟩ of an operator, X^, is a measure of how large a range its possible values are spread over (the standard deviation is given by σ=σ2−−√). Suppose that |X⟩ is an eigenstate of some operator X^, what is the -
## Quantum Physics

What is the probability current density of a particle with wavefunction ψ(x,t)=exp(iℏ(px−Et))? -
## Quantum Physics

Suppose we have a particle in 1-dimension, with wavefunction Ae−|x|2d. What is the probability to find the particle in the interval [0,d]? Please provide your answer in terms of A, d, mathematical constants such as π (entered as pi) or e (entered as e). -
## Quantum Physics

The ground state wavefunction for a particle in a shallow potential well in 1 dimension is of the form: Ae−|x|2d. Given that the particle must be found somewhere in the range x∈[−∞,∞], the born rule then places a constraint on the modulus of A. -
## Quantum Physics

Recall how the Schrödinger equation was motivated by the non-relativistic dispersion relation E=p22m. If we follow the same procedure for the case of a relativistic dispersion relation (E2=p2c2+m2c4), what equation do we arrive at? (For simplicity -
## Physics

We are standing at a distance d=15 m away from a house. The house wall is h=6 m high and the roof has an inclination angle β=30 ∘. We throw a stone with initial speed v0=20 m/s at an angle α= 35 ∘. The gravitational acceleration is g=10 m/s2. (See -
## To Reiny, math helper

can you look at my post, its just 4 math terms I need to figure out, please help -
## very EASY Math terms Defintions

Please help someone!!!! a number that can be expressed as the product of 3 equal factors? a number that can be expressed as the product of 2 equal factors product of 1 and a radical product of a rational number and a radical -
## Math term definitions

Please help someone!!!! a number that can be expressed as the product of 3 equal factors? a number that can be expressed as the product of 2 equal factors product of 1 and a radical product of a rational number and a radical -
## Math Definitions

a number that can be expressed as the product of 3 equal factors? a number that can be expressed as the product of 2 equal factors product of 1 and a radical product of a rational number and a radical -
## Math ms sue help

please help me with these defintions of math terms please: a number that can be expressed as the product of 3 equal factors? a number that can be expressed as the product of 2 equal factors product of 1 and a radical product of a rational number and a -
## Math definitions

a number that can be expressed as the product of 3 equal factors? a number that can be expressed as the product of 2 equal factors product of 1 and a radical product of a rational number and a radical -
## math

walkie talkie phone company charges $18.00 for basic phone service per month and $0.15 per minute for long distance calls. Arena calls charges $80.00 per month with no fee for long distance calls. For what number of minutes of long distance calls is the -
## math

there are 36 carpenters in a crew. on a certain day, 29 were present. what percent showed up for work? -
## math

find the radius and height of a cylindrical soda can with a volume of 21in^3 that minimize the surface area. -
## math

what is the smallest perimeter possible for a rectangle whose area is 1000in^2 and what are its dimensions? -
## math

verify that the function satisfies the hypotheses of the mean values theorem on the given interval. then find all numbers c in the given interval that satisfy the conclusion of the mean value theorem. f(x)=2x/x4 [0,3] -
## english iii

why did john choose the room in the yellow wallpaper? -
## maths

THE Perimeter of a triangle is 2004. One Side of a triangle = 21 Times the other. the shortest side is integral length. SOLVE For lengths of the sides of the traingle in every possible case. -
## calc

A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y = 8−x2. What are the dimensions of such a rectangle with the greatest possible area? width= length= -
## calc

Find the point on the line 2 x + 6 y + 2 = 0 which is closest to the point ( 2, 0 ). -
## calculus

A fence 5 feet tall runs parallel to a tall building at a distance of 3 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building? -
## calculus

A fence 5 feet tall runs parallel to a tall building at a distance of 3 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building? -
## physics

A particle has an initial horizontal velocity of 2.9 m/s and an initial upward velocity of 4.5 m/s. It is then given a horizontal accelera- tion of 1.2 m/s2 and a downward acceleration of 1.2 m/s2. What is its speed after 4.9 s? Answer in units of m/s -
## physics

A bomber flies horizontally with a speed of 225 m/s relative to the ground. The altitude of the bomber is 3010 m and the terrain is level. Neglect the effects of air resistance. The acceleration of gravity is 9.8 m/s2 . a) How far from the point vertically -
## Science- Chemistry

In the standard deviation, the decimal place of the first non-zero digit indicates where the precision of the average ends (decimal place where the individual results deviate from each other). All your mass readings have 5-6 significant figures, so one -
## Science- Chemistry

A test tube containing a mixture of compounds X, Y, and a small amount of Z weighs 25.4886 g. The tube is emptied into a beaker and the empty tube is reweighed, giving a value of 10.2586 g. The mixture is separated into two components by dissolving in -
## physics

A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 4.16 m/s2. She decides to test the car by drag racing with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 0.58 s before -
## poe

When Maggie applies the brakes of her car, the car slows uniformly from 15.9 m/s to 0 m/s in 2.43 s. How far ahead of a stop sign must she apply her brakes in order to stop at the sign? Answer in units of m -
## PoE

Turner’s treadmill starts with a velocity of −1.9 m/s and speeds up at regular intervals during a half-hour workout.After 36 min, the treadmill has a velocity of −7.6 m/s. What is the average acceleration of the treadmill during this period? Answer -
## physics

A car starts from rest and travels for 5.9 s with a uniform acceleration of +3.0 m/s2. The driver then applies the brakes, causing a uniform deceleration of 1.3 m/s2. If the brakes are applied for 2.1 s, how fast is the car going at the end of the braking -
## introduction to ethics

Virtue ethics regards which of these as virtues? (Points : 1) power envy temperance inconsistency -
## physics

A man jogs at a speed of 1.7 m/s. His dog waits 1.4 s and then takes off running at a speed of 3.4 m/s to catch the man. How far will they have each traveled when the dog catches up with the man? Answer in units of m -
## physics

How long does it take an automobile traveling 64.7 km/h to become even with a car that is traveling in another lane at 53.7 km/h if the cars’ front bumpers are initially 132 m apart? Answer in units of s -
## Literature

If you were simeon, what would you write a a five days journal pertaining to your life? -
## math

the number has 7 digits it is evenly divided by 00 the value of one of the digits is 60,000 the digit in the hundredth place is both even and prime the digit is the thousands place is 1/2 the value of the digit in the ten thousand place the digit in the -
## COM/215

REVISE Studying is hard work many students find they study better when they take regular breaks. -
## Statistics

Three cards are drawn with replacement from a standard deck. What is the probability that the first card will be a spade, the second card will be a black card, and the third card will be a queen? Write your answer as a fraction or a decimal number rounded -
## math

identify the property that it shown. 2*8*5=2*5*8 -
## Algebra 1

Can someone tell me the x- and y- intercepts of: x+y=9 Explain how you got the answer please. -
## math

tickets to a school play cost 1.5 in advance and 2.0 at gate. by selling all 200 tickets students got $360. how many tickets did they sell in advance? -
## physics urgent

A 1.5 m tall man stands 2 m in front of a flat wall mirror. Please find: image distance and height of image I have the formulas but i don't know how to solve this without the focal point or a radius...pls help!!!!!!! -
## physics

The magnetic field in the region shown below is increasing by 5 T/s. The circuit shown (with R=25 , C=55 µF, dimensions 1 m by 2 m) is inserted into the region as shown. The capacitor is initially uncharged. 1. How long will it take the capacitor to -
## physics urgent!

The magnetic field in the region shown below is increasing by 5 T/s. The circuit shown (with R=25 , C=55 µF, dimensions 1 m by 2 m) is inserted into the region as shown. The capacitor is initially uncharged. 1. What is the current in the circuit at the -
## urgent physics

A power line carries a current of 110 A at a location where the Earth's magnetic field has a magnitude of 0.37 Gauss (0.37·10-4 T) and points due north, very nearly parallel to the ground. Find the direction and magnitude of the magnetic force exerted on -
## health safety and nutrition of young child

could u please give answers for exam 40553400. i,m not sure about my answers -
## child day care mgmt

today ur going to talk about vitamin c with ur class . from which food group you willl choose ur snack? -
## child care

in preparing budget for a day care center, you must plan for taxes.as an amployer you must pay part of employees which tax -
## physics

Four light bulbs (A, B, C, D) are connected together in a circuit of unknown arrangement. When each bulb is removed one at a time (and subsequently replaced), the following behavior is observed while it is removed: A B C D A rem * on on on B rem on * on -
## physics

A point charge of -8.4 µC is at the origin. a)What is the electric potential due to this charge at (x,y) = (3.5 m, 0 m) b) What is the electric potential due to this charge at (x,y) = (-3.5 m, 0 m) c) What is the electric potential to this charge at (x,y) -
## math

Paul has grades of 73 and 86 on his first two tests. What must he score on his third test in order to have an average of at least 70? -
## statistic

Using the 68-95-99.7 rule: Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: a. Percentage of scores less than 100 b. Relative frequency of -
## statistic

1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. b. The graph of a normal distribution is bell-shaped. c. If a population has a normal distribution, the mean and the median are not equal. -
## statistic

A data set consist of a set of numerical values. Which if any of the following statements could be correct? a. There is no mode. b. There are two modes. c. There are three modes. -
## Statistic

Indicate whether the given statement could apply to the data set consisting of 1000 values that are all different. 1. The 29% is greater then the 30 th percentile. 2. The median is greater then the first quartile. 3. The third quartile is greater then the -
## physics

A transformer with 360 turns in its primary coil and 18 turns in its secondary coil is designed to delivered an average power of 1400 W with a maximum voltage of 60 V. What is the maximum current in the primary coil? -
## geometry

Given two spheres, if the volume of the first sphere is 36r, and the volume of the second sphere is 288r, what is the relation of the second radius to the first radius? -
## Pre-algebra

0.2297=(1/x^2-1/49) I don't get how to solve for x. Pls help stuck on a problem -
## algebra 1

which expression is equal to 6(9+2)? -
## math

write the place name for the 4 in the following number 3 624 786 -
## math

round the following number to the nearest ten: 53 -
## Physics

Let's say I put a very hot 100o C, 41 g cube of aluminum in 71 ml water at room temperature (20o C). What is the temperature of the water after equilibrium occurs -
## Physics

I have been working on this homework question for a bit, but I just can't get it. Please help me! Where must an object be placed with respect to a convex lens (f=20cm) to generate an upright image that is 4 times as large as the object? 10 cm in front 10 -
## pre-cal

what is the vertex and directrix of the parabola y=-1/2x^2 + 10 - 46 -
## math

find the value of pi in the following: sin pi=cos(pi + 40) sin(80 - pi)=cos pi -
## help please

if you are printing an essay on the comuter....can the essay be double line space? -
## MDM4UO

A teacher provides pizza for his class if they earn an a average on any test the proability of the class getting an A average on one of his test is 8% What is the probability that the class will not earn a pizza for the firt seven tests? Answer is 0.5578 -
## Clothing and Textiles

What are thedifferent methods of controlling fullness in a garment. Need pictures -
## Please Please Help-Physics

I am having trouble figuring out this question: Part 1: A long staight wire carries a current due East. This wire creates, at point #1, a magnetic field that is derected at 40 deg below due South. From point #1, the wire is located: 50 deg below due North -
## Physics

I am having trouble figuring out this question: Part 1: A long staight wire carries a current due East. This wire creates, at point #1, a magnetic field that is derected at 40 deg below due South. From point #1, the wire is located: 50 deg below due North -
## Phys 2

I am having trouble figuring out this question: Part 1: A long staight wire carries a current due East. This wire creates, at point #1, a magnetic field that is derected at 40 deg below due South. From point #1, the wire is located: 50 deg below due North -
## Stoichiometry

How man liters of hydrogen should have been collected by reacting .045 grams of magnesium?

## Pages

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