Friday, October 12, 2012

У нас есть возможность и воля предложить миру объединяющий его проект.. Комментарии : LiveInternet - Российский Сервис Онлайн-Дневников

У нас есть возможность и воля предложить миру объединяющий его проект.. Комментарии : LiveInternet - Российский Сервис Онлайн-Дневников

Sunday, October 7, 2012

Brooklyn Physics help

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Phone: 1-718-223-0228

Location: Bay Ridge, Brooklyn, NY

Practice Exam: Vectors, Motion

Vector A : A _X=0N; A _Y=3N; A _Z=0N;
Vector B : B _X=0m; B _Y=0m; B _Z=4m;
C = A x B ;
C _X=?
C _Y=?
C _Z=?
|C| = ?
Symbol | . | means the absolute value or the magnitude.
What is the angle between the vector A and the vector B ?
What is the angle between the vector C and the vector A ?
What is the angle between the vector C and the vector B ?
Vector A : A _X=0N; A _Y=3N; A _Z=0N;
Vector B : B _X=0m; B _Y=0m; B _Z=4m;
c = A ∙ B = ?
What is the angle between the vector A and the vector B ?
Vector A : A _X=0m; A _Y=3m; A _Z=0m;
Vector B : B _X=0m; B _Y=0m; B _Z=4m;
C = A + B ;
C _X=?
C _Y=?
C _Z=?
|C| = ?
What is the angle between the vector A and the vector B ?
Vector A : A _X=0m; A _Y=3m; A _Z=0m;
Vector B : B _X=0m; B _Y=0m; B _Z=4m;
C = A ‒ B ;
C _X=?
C _Y=?
C _Z=?
|C| = ?
What is the angle between the vector A and the vector B ?
Vector A : A _X=0N; A _Y=0N; A _Z=3N;
Vector B : B _X=0m; B _Y=4m; B _Z=0m;
C = A x B ;
C _X=?
C _Y=?
C _Z=?
|C| = ?
What is the angle between the vector A and the vector B ?
Vector A : A _X=0N; A _Y=0N; A _Z=3N;
Vector B : B _X=0m; B _Y=0m; B _Z=4m;
c = A ∙ B = ?
What is the angle between the vector A and the vector B ?
Vector A : A _X=3N; A _Y=4N; A _Z=0N;
Vector B : B _X=0m; B _Y=0m; B _Z=5m;
What is the angle between the vector A and the vector B ?
Vector A : A _X=3N; A _Y=4N; A _Z=5N;
Vector B : B _X=6m; B _Y=8m; B _Z=10m;
C = A x B ;
C _X=?
C _Y=?
C _Z=?
|C| = ?
What is the angle between the vector A and the vector B ?
Vector A : A _X=3N; A _Y=4N; A _Z=0N;
m =2 kg;
C = A / m ;
C _X=?
C _Y=?
C _Z=?
|C| = ?
What is the angle between the vector C and the vector A ?
The initial position of a free falling body: X=0m; Y=20m; Z=0m.
Y -axis is directed vertically up.
Y=0m is the ground level.
The initial velocity is V : V _X=4 m/s; V _Y=10 m/s; V _Z=3 m/s.
Use g=10m/s ²
1) V _F is the final velocity of the free falling body just before it collide the ground (Y=0).
V _FX = ?
V _FY = ?
V _FZ = ?
2) V _A is the average velocity for the total falling time?
V _AX = ?
V _AY = ?
V _AZ = ?
3) What is the distance between the starting, initial point and the final, ground level point?
4) Write mathematical operation in form of some Calculus expression, which allow to calculate the average speed for this problem. It is not necessary to solve this expression.
Let we know:
a) the initial position x ₀ =1m of some material point in the X- axis,
b) the initial speed V _{0 X} = 2m/s of this point, and
c) the acceleration a _Xof this point depend on time as: a _X =3m/s ³ ×t , where time t is in seconds.
1) Find position x (t) and velocity V _X (t) of this material point as functions of time t .
2) Find the velocity of this material point V _X (x) as a function of coordinate x .
Let we know
a) the initial position x ₀ =1m of some material point in the X -axis,
b) the initial speed V _{0 X} = 2m/s of this point, and
c) how the acceleration of this point depend on its position x : a _X =3/s ² x , where x is in meters.
1) Find the position x (t) of this material point as a function of time t .
2)Find the velocity V _X (t) of this material body as a function of time t
3) Find the velocity V _X (x) of this material body as a function of coordinate x
A material point traveling in a circle with a constant speed of 6 m/s has a centripetal acceleration of 2 m/s ² . What is the radius of the circle?
A free falling body A is released from the rest.
A free falling body B is released at the same time however with the initial horizontal velocity of 4 m/s.
What are speeds of the falling bodies A and B after 0.3 s (Use g=10 m/s ²)?
|V _A|=?
|V _B|=?
A free falling body A is released from the rest.
A free falling body B is released at the same time however with the initial vertical velocity of 4 m/s up.
1) What are speeds of the falling bodies A and B after 0.3 s (Use g=10 m/s ²)?
|V _A|=?
|V _B|=?
2) What is the distance between the falling bodies A and B after 0.3 s (Use g=10m/s)?

Wednesday, September 26, 2012

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Friday, September 14, 2012

The Best Private Tutoring

GED (General Educational Development) Test Tutor: 718-223-0228, admin@TutorState.com

Small Group Tutoring Services in Math, Physics, Chemistry, Computer Science, Statistics: TutorState.com

One-on-one and in small groups (3-5 students).

Email:admin@TutorState.com

Locations of Small-Group Tutoring Centers:

Brooklyn (16th Ave & 76th St, Brooklyn, NY)
Staten Island

The first small-group tutoring lesson is free.

To apply for small-group private tutor call:

Mathematics: 917-318- 2427
Physics and Earth Science: 718-223-0228
Chemistry, Biology, and Environment Science: 646-338-5121

Friday, August 31, 2012

Tutoring for Bright Kids

Regents, SAT, MCAT, and AP Test Preparation

Small Groups (5 Students)

Location: 16th Ave & 76th St, Brooklyn, NY

One Lesson: 6 hours, $50.

The first lesson is free.

Lesson structure:

Lecture (2 hours)
Recitation (2 hours)
Test (2 hours)

Subjects:

Mathematics (Algebra, Calculus, Geometry, Trigonometry, ...)
Physics
Earth Science
Chemistry
Biology
Environment Science

Phones

Mathematics: 917-318-2427
Physics and Earth Science: 718-223-0228
Chemistry, Biology, and Environment Science: 646-338-5121

Email: admin@TutorState.com

Monday, August 20, 2012

Brooklyn Small Group Tutoring

Regents, SAT, MCAT, and AP Test Preparation

Small Groups (5 Students)

Location: 16th Ave & 76th St, Brooklyn, NY

One Lesson: 6 hours, $50.

The first lesson is free.

Lesson structure:

Lecture (2 hours)
Recitation (2 hours)
Test (2 hours)

Subjects:

Mathematics (Algebra, Calculus, Geometry, Trigonometry, ...)
Physics
Earth Science
Chemistry
Biology
Environment Science

Phones

Mathematics: 917-318-2427
Physics and Earth Science: 718-223-0228
Chemistry, Biology, and Environment Science: 646-338-5121

Email: admin@TutorState.com

Sunday, August 19, 2012

Социальная сеть: Совет Народных Комиссаров, SowNar.Com

Our People's Commissars

Tudor Spataru

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People's Commissariat for Agriculture: Commissar (vacant)

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MEMOIRS/ ВоспоминанияА.И.Лебедь, Гейнц Гудериан, Светлана Аллилуева, Михаил Горбачев, Никита Сергеевич Хрущев, Уинстон Черчилль, Валерий Аграновский, …