# Posts by sonia

Total # Posts: 252

1. ### 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
2. ### math

( 12) + (35)=x 144+1225= x 1369 = x 37=x
3. ### History

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

5.8 j
5. ### 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?
6. ### Math

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

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

1992
9. ### 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 3)BbRr:BbRr:BbRR:bbrr ...

2) 4:4

14. ### chemistry

I meant to find mass in grams of sodium thio sulphate of strength .0M
15. ### chemistry

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

what mass of zinc will be required to react completely with 100cm3 of a 1.0M hcl.
17. ### 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
18. ### 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 tower
19. ### maths

ans is 18 but how it calutated
20. ### 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?

9.9:b

4: true
23. ### math

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

Estimate 5/30 as a percent.
25. ### 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?
26. ### 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?

RUSSEL
28. ### 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?
29. ### 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?
30. ### 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?
31. ### 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?
32. ### chemistry

In the sun, nuclear fusion takes place. If the decrease in mass isa 0.006 50g, how much energy is released?
33. ### 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?

A
35. ### Life orientation

desribe the three human rights and two examples of human rights violation?

37. ### 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 pressing some finite ...
38. ### 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?
39. ### English

I mean the right pronounce in US style.
40. ### English

I think the question is about the pronounce.
41. ### English

oh,yes.I'm sorry.
42. ### science

is that electric current occupies space?
43. ### English

'if it snows tomorrow,I will make a snowman with my family members.
44. ### English

'if it snows tomorrow,I will make a snowman with my family.
45. ### 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
46. ### 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?
47. ### 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 ...
48. ### Quantum Physics

What is the probability current density of a particle with wavefunction ψ(x,t)=exp(iℏ(px−Et))?
49. ### 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). (Assume that...
50. ### 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. ...
51. ### 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 consider the one-...
52. ### 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 figure...
53. ### To Reiny, math helper

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

OMG THANK YOU !!!!! :):):):):)
55. ### 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
56. ### 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
57. ### 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
58. ### 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 radical
59. ### 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

93. ### 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!!!!!!!
94. ### simplest form

4/8-2/8 = 4-2/8 = 2/8
95. ### 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 charge to 25% of its ...
96. ### 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 moment the circuit...
97. ### 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 a 270 m ...