• Whats the Difference Between Microwave Radiation, RF Radiation, and Optic Radiation?

    So I was reading about terahertz radiation, and supposedly its optic. That brought up a question, whats the difference between microwave radiation, and optic radiation. Like is it is the way the electromagnetic wave propagates or whats the deal
    So I was reading about terahertz radiation, and supposedly its optic. That brought up a question, whats the difference between microwave radiation, and optic radiation. Like is it is the way the electromagnetic wave propagates or whats the deal
    14 answers · 2 days ago
  • Does the Soul have zero entropy, from the perspective of Multiverse theory?

    As per the Multiverse theory, all possibilities are already known, they are simply inert until they come into being. In a Timeless state, everything would be viewed as already having happened. If the Soul is connected to the Multiverse and thus to a Timeless state, the Soul has zero entropy. It is totally in stasis... show more
    As per the Multiverse theory, all possibilities are already known, they are simply inert until they come into being. In a Timeless state, everything would be viewed as already having happened. If the Soul is connected to the Multiverse and thus to a Timeless state, the Soul has zero entropy. It is totally in stasis with regard to potential reality, since reality from a Timeless perspective has already elapsed. The Soul is totally motionless, in spite of what ever motion it imagines.
    10 answers · 23 hours ago
  • An asteroid is traveling towards Earth at 0.0001c. A light beam from Earth is tracking the asteroid.?

    Best answer: It's a question of Special Relativity. Because time slows with increasing speed, an observer on the asteroid will still see the speed of light as being c. The observer would see the intercepting light beam from Earth as being significantly blue-shifted, but ALL light from whichever direction will still be at... show more
    Best answer: It's a question of Special Relativity. Because time slows with increasing speed, an observer on the asteroid will still see the speed of light as being c.

    The observer would see the intercepting light beam from Earth as being significantly blue-shifted, but ALL light from whichever direction will still be at a velocity of c.
    4 answers · 21 hours ago
  • If the Earth is round, why don't airplanes have to compensate for the curvature of the Earth?
  • !!!!!I Not sure what I did wrong!!!!!?

    a 55.0 kg person( density=1010 kg/m^3) is underwater. what is the total net force acting on the person? ANSWER=4.905n
    a 55.0 kg person( density=1010 kg/m^3) is underwater. what is the total net force acting on the person? ANSWER=4.905n
    5 answers · 1 day ago
  • I got a different answer to the physics textbook... Help?

    Best answer: 1/2 * 50 * 0.035^2 = 0.030J ( 2 significant figures means the trailing zero is necessary ) 1/2 * 50 * 0.075^2 = 0.14J So that a) I agree with your answer. b) even if I change the wording to "the spring was stretched BY 7.5cm" I cannot agree that the answer of 0.9 J is correct. c) to get 0.9 J this spring... show more
    Best answer: 1/2 * 50 * 0.035^2 = 0.030J ( 2 significant figures means the trailing zero is necessary )
    1/2 * 50 * 0.075^2 = 0.14J

    So that a) I agree with your answer.
    b) even if I change the wording to "the spring was stretched BY 7.5cm" I cannot agree that the answer of 0.9 J is correct.
    c) to get 0.9 J this spring would need to have been stretched BY 0.19 m or TO a length of 0.23 m
    6 answers · 1 day ago
  • Is Isot possible to grain the human eye to see in slow motion? For if I want to be better in basketball or football I want to see in slow?

    Be able to maneuver past opponents in tricky situations. Can the human eye be trained to see in slow mo
    Be able to maneuver past opponents in tricky situations. Can the human eye be trained to see in slow mo
    7 answers · 6 days ago
  • If I fold a piece of paper 42 times can I climb to the Moon and back?

    Best answer: You can only fold a piece of paper seven times**...... any more and you are a wizard.
    Peace.

    ** Irrespective size of such paper.
    Best answer: You can only fold a piece of paper seven times**...... any more and you are a wizard.
    Peace.

    ** Irrespective size of such paper.
    10 answers · 4 days ago
  • Why can i hear thunder in the future on facetime?

    i was on the phone with my friend, we live a block away from each other and it’s thunderstorming. i can hear the thunder on her end before it happens outside and then like 5 seconds later i hear it outside?? is she in the future?
    i was on the phone with my friend, we live a block away from each other and it’s thunderstorming. i can hear the thunder on her end before it happens outside and then like 5 seconds later i hear it outside?? is she in the future?
    7 answers · 2 days ago
  • How hard is it to self teach yourself Physics?

    Because challenge accepted! there are people that don't believe i will learn and understand physics. I am going full throttle with physics and over shoot to astrophysics. And wish me good luck. 28 years old and I want to finally get a college degree. ..
    Because challenge accepted! there are people that don't believe i will learn and understand physics. I am going full throttle with physics and over shoot to astrophysics. And wish me good luck. 28 years old and I want to finally get a college degree. ..
    5 answers · 12 hours ago
  • Vector A makes an angle of 20° and B makes an angle of 110° with the x axis. The magnitudes of A= 20 mag of b = 30. Find angle of resultant?

    Best answer: Total of x components: X = 20cos(20°) + 30cos(110°) = 8.533
    Total of y components: Y = 20sin(20°) + 30sin(110°) = 35.03

    θ = tan⁻¹(Y/X) = tan⁻¹(35.03/8.533) = tan⁻¹(4.105) = 76.3°
    Best answer: Total of x components: X = 20cos(20°) + 30cos(110°) = 8.533
    Total of y components: Y = 20sin(20°) + 30sin(110°) = 35.03

    θ = tan⁻¹(Y/X) = tan⁻¹(35.03/8.533) = tan⁻¹(4.105) = 76.3°
    4 answers · 20 hours ago
  • Which of the following is an example of an inertial frame of reference?

    Best answer: B. a comet traveling in outer space at a constant speed

    Inertial frame of reference refers to something traveling in a straight path with constant velocity (no acceleration).
    Best answer: B. a comet traveling in outer space at a constant speed

    Inertial frame of reference refers to something traveling in a straight path with constant velocity (no acceleration).
    4 answers · 20 hours ago
  • Suppose you are in a space capsule heading straight towards Mars at a constant speed of 0.1c.?

    Best answer: The speed and direction of wind that you measure will depend on how you are moving while you measure it. If you run into the wind you will feel it blow much faster than if you run away from it. This is not the case with light. Light is a special something. ALL observers, no matter what the velocity of each one is,... show more
    Best answer: The speed and direction of wind that you measure will depend on how you are moving while you measure it. If you run into the wind you will feel it blow much faster than if you run away from it.

    This is not the case with light. Light is a special something. ALL observers, no matter what the velocity of each one is, will measure the speed of a beam of light in vacuum to be "c". This is Einstein's 2nd postulate upon which lies all of the subject matter of special relativity you are supposed to know.


    So
    If you are traveling at a constant speed (inertial reference frame) of 0.1c, then you will measure the speed of light coming from Earth as...
    c.
    :)
    4 answers · 21 hours ago
  • Am I safe from lightning in my car?

    Best answer: Yes you are, so long as you're not touching the exterior of the car or in a convertible with the top down. It's a common misconception that rubber tires insulate the car. In reality, the reason you're safe is because of the Faraday cage effect. It also works for airplanes. However, even though you... show more
    Best answer: Yes you are, so long as you're not touching the exterior of the car or in a convertible with the top down. It's a common misconception that rubber tires insulate the car. In reality, the reason you're safe is because of the Faraday cage effect. It also works for airplanes.

    However, even though you are safe inside the car, the car itself can still be damaged from lightning strikes.
    11 answers · 5 days ago
  • !!!!Please Help !!!?

    Best answer: Quickest way is this. Subscript '1' is the pipe; subscript '2' is the 25 small holes.

    Flow rate through pipe = flow rate through holes: A₁v₁ = A₂v₂

    v₂ = v₁ x A₁/A₂ = v₁ x (πr₁² )/(25πr₂²) = (v₁/25) x (r₁/r₂)²

    v₂ = (3.75/25) x (0.0112/0.0012)² = 13.1m/s
    Best answer: Quickest way is this. Subscript '1' is the pipe; subscript '2' is the 25 small holes.

    Flow rate through pipe = flow rate through holes: A₁v₁ = A₂v₂

    v₂ = v₁ x A₁/A₂ = v₁ x (πr₁² )/(25πr₂²) = (v₁/25) x (r₁/r₂)²

    v₂ = (3.75/25) x (0.0112/0.0012)² = 13.1m/s
    4 answers · 24 hours ago
  • Is it possible for time travel to exist with the right technology?

    I've heard traveling into the future is possible but traveling back in time is really hard. One of my friends actually time traveled before so he asked me if I wanted to come next time he goes I'm a bit scared though.
    I've heard traveling into the future is possible but traveling back in time is really hard. One of my friends actually time traveled before so he asked me if I wanted to come next time he goes I'm a bit scared though.
    12 answers · 6 days ago
  • Definition of matter?

    6 answers · 2 days ago