Thursday
April 17, 2014

Posts by matin


Total # Posts: 18

Psychology
I know I am not going to do such a thing, but the thought keeps moving through my mindDid I remember to get dressed?" Karen recognizes her thought as unrealistic, but she stops at each restroom to check in the mirror. She checks again when she passes a window in which she...

Psychology
It was a test day, there were no oral reports due, and the class was getting ready to view a video. Regardless of the relaxed nature of the class, Baxter suddenly felt his muscles tighten and his heart rate increase as if he had had a sudden fright. It was happening again. The...

Psychology
Most of us respond negatively if a spider walks across our arm while we are studying, but Cassandra cannot bear the thought of a spider. If she suspects that a spider lurks inside a building, she will not enter. She employs an exterminator to treat her house once a week and, o...

Psychology
Since you live in a tribal situation which views the piercing of the body with thorns as an indication of strength among men, women, children, and infants, the practice cannot be judged as abnormal." This statement is reflective of _______________.  
A. th...

Psychology
A student who has never written a term paper and is frightened by the prospect of such an effort may avoid reading the directions for the paper. "No one writes papers in French," or "You never told us what to do," might be used to deal with the problem. The...

physics....
Cherenkov radiation is light emitted by a particle moving through a medium with a speed greater than the speed of light in the medium. (Note: The speed of the particle is not greater than the speed of light in a vacuum.) Consider a beam of electrons passing through water with ...

physics ...plzzzz help...
Why is glass transparent to visible light but opaque to ultraviolet or infrared light ?? can anyone give me a detailed explanation for it coz i knw the general thing that because they have different wavelengths.....

physics....
When a photon bounce off an electron, it gives some of its energy to the electron. The photon has no mass, however, and it must continue to travel at speed c. How is its reduced energy manifested?

physics
The Bohr model of the hydrogen atom consists of an electron travelling in a circular orbit of radius 5.29 x 10-11 m around a proton. The attraction between the two gives the electron the centripetal force required to stay in orbit. Calculate the: a. Electric force between the ...

physics
The gravitational field intensity at a height of 150 km above the surface of Uranus is 8.71 N/kg. The radius of Uranus is 2.56 x 107 m. a. Calculate the mass of Uranus. b. Calculate the gravitational field intensity at the surface of Uranus. c. How much would a 100 kg person w...

physics
A 3.0 g ping pong ball is suspended from a thread 35 cm long. When a comb is brought to the same height, the ping pong ball is repelled and the thread makes an angle of 10.0o with the vertical. What is the electric force exerted on the ping pong ball?

physics
Three charges sit on the vertices of an equilateral triangle, the side of which are 30.0 cm long. If the charges are A = +4.0 C, B = +5.0 C, and C = +6.0 C (clockwise from the top vertex), find the force on each charge.

physics
Consider a charge of +2.0 C placed at the origin of an X-Y co-ordinate system and a charge of -4.0 C placed 40.0 cm to the right. Where must a third charge be placed – between the charges, to the left of the origin, or beyond the second charge – to ex...

Phizzics....
Both positive and negative charges produce electric fields. Which direction, toward or away from itself, does the field point for each charge?

physics
A rocket is launched vertically from Earth's surface with a velocity of 3.4 km/s. How high does it go: From Earth's centre? From Earth's surface? how can this be done without any time or force mentioned ??

physics
A projectile is shot from the edge of a cliff 125 m above ground level with an initial speed of 105 m/s at an angle of 37.0o with the horizontal, as shown in Figure 3-39. (a) Determine the time taken by the projectile to hit point P at ground level. (b) Determine the range X o...

physics
Tarzan (mass 100 kg) holds one end of an ideal vine (infinitely strong, completely flexible, but having zero mass). The vine runs horizontally to the edge of a cliff, then vertically to where Jane (mass 50 kg – she went on a diet since question #13) is hanging on, above a...

tenison
square root for 8

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