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Physics
Page 85
Questions (146,983)
Why are interference colors more apparant for thin films than for thick films?
1 answer
asked by
Trey
391 views
How can you determine the polarization axis for a single sheet of Poloroid?
1 answer
asked by
Trey
326 views
If you are viewing a hologram and you close one eye, will you still perceive depth? Explain.
1 answer
asked by
Trey
303 views
what is the amount of gravity im m/s on each planet in the solar system. I need to know by Wednesday. Thanks
1 answer
asked by
Rebecca
364 views
Compare two transmission lines: one at twice the voltage of the second. Which of the two lines is most advantageous to a utility
4 answers
asked by
Tim
391 views
If a plate is dropped and comes in contact with a hard floor vs a playe coming in contact with a carpet, which has the greater
6 answers
asked by
Tri
348 views
A pitcher throws a curveball that reaches the catcher in 0.51 s. The ball curves because it is spinning at an average angular
2 answers
asked by
John
567 views
During a tennis serve, a racket is given an angular acceleration of magnitude 155 rad/s2. At the top of the serve, the racket
1 answer
asked by
Zach
411 views
The burning of gas in a car produces about 12,600 kJ/gallon of energy. If a car averages 35 km/gal when driving 90 km/hr, which
1 answer
asked by
Lindsay
370 views
The following appliances are being used simultaneously: toster oven, TV, computer, three 100 W light bulbs and an iron. Yet the
1 answer
asked by
Andrea
409 views
In a certain process, 2.11x10^5 J of heat are supplied to a system and at the same time, the system expands against a constant
1 answer
asked by
Lindsay
371 views
Do circular electric lines of force exist ? why? what about magnetic lines of force?
Pl help
3 answers
asked by
Sandhya
322 views
What is the color of all the visible light frequencies mixed together equally?
I would think white. Is that right?
1 answer
asked by
Tara
379 views
"How can you tell the charge on the VanDer Graf generator is - ?"
1 answer
asked by
TP
272 views
Descibe 2 ways to create a magnetic field.
Describe 2 ways to create an electric current. What are some similarities between the
1 answer
asked by
Taprika
373 views
A jetliner is moving at a speed of 220 m/s. The vertical component of the plane's velocity is 36.0 m/s. Determine the magnitude
1 answer
asked by
Will
370 views
A jetliner is moving at a speed of 220 m/s. The vertical component of the plane's velocity is 36.0 m/s. Determine the magnitude
1 answer
asked by
Hawkins
378 views
A person must move two heavy packages over a surface level so they place a 20kg package over a 30kg package and decide to move
1 answer
asked by
Alex
376 views
In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing
1 answer
asked by
Hawkins
394 views
If the TV draws a 150W of power, the dishwasher 1500 W of power and the computer 100 W of power, will a typical 15 A circuit
1 answer
asked by
Andrea
405 views
A person must move two heavy packages over a surface level so they place a 20kg package over a 30kg package and decide to move
1 answer
asked by
Alex
381 views
What is the algebraic expression for the ratio ac,second/ac,minute of the centripetal accelerations for the tips of the second
1 answer
asked by
Eric
328 views
To say that light is quantized means that light is made up of what?
1 answer
asked by
Beth
310 views
Who was the scientist who first developed the notion of quantization was...?
Was it DeBrogile?
1 answer
asked by
Beth
320 views
In the formula, E = hf, what is h?
Is it wavelength?
1 answer
asked by
Beth
399 views
Which laser beam carries more energy per photon?
red, yellow, green, violet? I think red. Am I right?
1 answer
asked by
Rob
390 views
In the photoelectric effect, what determines the kinetic energy of the ejected electrons?
1 answer
asked by
Rob
402 views
In the photoelectric effect, what determines the number of ejected electrons?
1 answer
asked by
Rob
365 views
Who was the scientist that invented the uncertainty principle ?
Was it Heisenberg?
1 answer
asked by
Rob
334 views
The materials with the lowest resistance are called
a) conductors b)superconductors c)semiconductors d) insulators I can't decide
1 answer
asked by
Andrea
398 views
A person eats a container of yogurt. The Nutritional Facts label states that it contains 195 Calories (1 Calorie = 4186 J). What
1 answer
asked by
Thomas
359 views
A person eats a container of yogurt. The Nutritional Facts label states that it contains 195 Calories (1 Calorie = 4186 J). What
1 answer
asked by
Mitch
447 views
How do you write 25um in scientific notation?
1 answer
asked by
Dana
344 views
True/False
1)Specular reflection obeys the laws of reflection while diffuse reflection does not. False. drwls said its true but I
2 answers
asked by
Jon
852 views
Did Einstein support quantum mechanics as being fundamental physics, or did he think quantum mechanics was inconclusive?
1 answer
asked by
Tammy
380 views
1)A 0.050 m long wire is carrying a current of 2.0 A at right angles to a 0.15 T magnetic field. What is the magnitude of the
2 answers
asked by
Jon
517 views
Is there a difference in current between two ciruits if one circuit has the lightbulbs in series while the other one has them in
1 answer
asked by
Bee
364 views
why does current slow down in a series than when in a parallel?
3 answers
asked by
Bee
267 views
n=1.331 for red light in water and n=1.34 for blue light in water. If a ray of white light enters the water at 83 degrees what
1 answer
asked by
Andrea
401 views
What is the critical angles for water ice when surrounded by air?
theda critial = arcsin(n2/n1) =arcsin(1/n1) What is the index
1 answer
asked by
Andrea
419 views
For the following, put T in the box if the statement is true, Fif it is false. Try to provide a very brief explanation of each
1 answer
asked by
Baby
442 views
How could an element emit alpha and beta particles and result in the same element?
1 answer
asked by
Chad
314 views
An engine has an efficiency of 61% and produces 7900 J of work. Determine each of the following.
(a) the input heat J (b) the
1 answer
asked by
Johnson
401 views
When a car drives off a cliff, why does it rotate forward as it falls? (Consider the torque it experiences as it rolls off the
1 answer
asked by
Anonymous
421 views
An engine has an efficiency of 59% and produces 5300 J of work. Determine each of the following.
(a) the input heat J (b) the
1 answer
asked by
Kiante
405 views
The depth of a body of water can be found by emitting sound pulses reflected from the bottom. If the time interval from emission
1 answer
asked by
Bafana
356 views
The Sun puts out 3.9 x 10^26 J of energy per second. Assuming 100% conversion to energy, how much mass is required to create
4 answers
asked by
Joy
351 views
A Particle in a lab is fired through a particle accelerator. If its rest mass is 500 MeV, what is the mass when it is traveling
3 answers
asked by
Joey
393 views
I have to design an experiment to measure the speed of sound.
We're given a tape measure and a stopwatch. The temperature of the
1 answer
asked by
Lucy
422 views
Which one is a true statement? The magnetic field of the Earth:
a)never changes b)continuously changes c) sometimes vanishes
1 answer
asked by
Andrea
322 views
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