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Friday, November 28, 2014
Thursday, November 27, 2014
tutorstate@gmail.com has shared New Russian Stealth Jet Fighter Called ‘Super Weapon’ Giving Russia Edge Over U.S. In Skies
A new Russian jet fighter, using stealth technology designed to conceal the plane from radar, is being called a "super weapon" by military experts who say that the fifth-generation Russian fighter jet actually surpasses United States fighters and could give Russia an advantage in the skies. Known as the TA-50 PAK FA, the new Russian stealth fighter is developed by the Russian aeronautic giant Sukhoi and is set to go into action in 2016. Russia is developing the new super fighter together with India, which is kicking in 25 percent of the T-50 program's $20 billion projected cost.
New Russian Stealth Jet Fighter Called 'Super Weapon' Giving Russia Edge Over U.S. In Skies
http://www.inquisitr.com/1638419/russian-stealth-fighter-jet-super-weapon/#goJZVIea1TxX3OLP.03
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tutorstate@gmail.com shared this using Po.st
New Russian Stealth Jet Fighter Called 'Super Weapon' Giving Russia Edge Over U.S. In Skies
http://www.inquisitr.com/1638419/russian-stealth-fighter-jet-super-weapon/#goJZVIea1TxX3OLP.03
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tutorstate@gmail.com shared this using Po.st
Monday, November 24, 2014
Saturday, November 22, 2014
Liftoff
 | Vasiliy Znamenskiy shared Panah Rad's post with you. Liftoff |
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A colorized scanning electron micrograph...
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 | World Science Festival A colorized scanning electron micrograph showing sensory hair cells in the cochlea of the inner ear. Inner ear hair cells help transform vibrations into electrical signals that are sent to the brain via the auditory nerve. http://ow.ly/EIBh3  View or comment on Vasiliy Znamenskiy's photo » Google+ makes sharing on the web more like sharing in real life. Learn more. Join Google+ |
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Friday, November 21, 2014
Veil Nebula I know I have many images of...
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Vasiliy Znamenskiy shared Hermosa Galaxia's post with you.
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Hermosa Galaxia
Veil Nebula I know I have many images of this nebula, but each one is uniquely awesome!.
 View or comment on Vasiliy Znamenskiy's photo » |
Thursday, November 20, 2014
Sunday, November 9, 2014
Chapter 21, Problems 4, 7. A single loop of wire ...
New York City Physics Tutor
Chapter 21, Problem 4. A single loop of
wire with an area of x1 m2 is in a uniform
magnetic field that has an initial value of x2 T, is
perpendicular to the plane of the loop, and is decreased with the
constant rate of x3 T/s.
(a) What emf is
induced in this loop?
(b) If the loop has a resistance of x4
Ω, find the current induced in the loop.
Chapter 21, problem 7. A closely wound
rectangular coil of N turns has dimensions of x1 cm by x2
cm. The plane of the coil is rotated from a position where it makes
an angle of x3ᵒ with a magnetic field of x4 T
to a position perpendicular to the field. The rotation takes x5
s.
What is average emf induced on the coil?
(a) What emf is induced in this loop?
What is average emf induced on the coil?
Tuesday, November 4, 2014
Magnetic Field and Magnetic Forces: Problems
Chapter 20, problem 31.
A rectangular x1 cm by x2 cm circuit carrying an x3 A current is oriented with its plane parallel to a uniform x4 T magnetic field (Figure 20.62, page 693).(a) Find the magnitude and direction of the magnetic force on each straight segment of this rectangular circuit.
Illustrate your answers with clear diagrams.
(b) Find the magnitude of the net force on the entire circuit.
(c) Find the magnitude of the net torque on the entire circuit.
Chapter 20, problem 57.
A circular metal loop is x1 cm in diameter.How large a current must flow through this metal so that the magnetic field at its center is equal to the magnetic field of x2 T?
Chapter 20, problem 62.
Two circular concentric loops of wire lie on a tabletop, one inside the other.The inner loop has a diameter of x1 cm and carries a clockwise current of x2 A,
as viewed from above, and the outer wire has a diameter of x3 cm.
What must be the magnitude and direction (as viewed from above) of the current in the outer loop so that the net magnetic field due to this combination of loops is zero at the common center of the loops?
Chapter 20, problem 64.
A solenoid contain N coils of very thin wire evenly wrapped over a length of x1 cm.Each coil is x2 cm in diameter.
If yhis solenoid carries a current of x3 A, what is the magnetic field at its center?
Saturday, November 1, 2014
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