# Physics

• ## What you have to have and understand, to imagine the string theory have the basic knowledge?05-17

I am now looking for many months a declaration for 4 (or more) dimensions. I'm only 16, so my lack knowledge in physics studies trained. I've watched some explanation try youtube. Mostly is presented as 4th dimension the time. It is spoken by motion

• ## Physics away / time / labor /.../ - calculations03-28

Hi :) Can anyone help this task to solve me? Would be super grateful! :) an pansies his seed grains up to 4m high schleudern.nimm at which grain required for the flight 1second and weighs 0.1 grams. With what power flings the pansies his seed grains

Tags: Physics, computation
• ## how can I go blind at a look eclipse directly without?03-23

how can I go blind at a look eclipse directly without? --answer-- Only because I already have a couple of times a similar question today, I quote times from my original answer accordingly: "From aluminum foil I would strongly advise against. What mig

• ## Abi physics: web forms by electrons in the homogeneous magnetic field03-04

I have a question about a Physics task: A particle with charge q occurs at the speed v a a a homogeneous magnetic field with the flux density. Describe the shape of the path which passes through the particles and justify their statement exactly: - (.

Tags: high school, Physics
• ## Thermodynamics mole01-28

Hi folks: I come at a task not: Could you please help me? the gas amount of nitrogen, at 20 ° and atmospheric pressure, a volume of 5 m³ occupies, is in a 100Literflasche gefüllt.welche fuel quantity is in the bottle? how great the pressure of bottle

• ## Shielding from electromagnetic pollution?01-27

Hello people, I am from umbrellas against electromagnetic pollution and could you also give me the physical explanation? --answer-- Faraday cage: wrap yourself with a metal (film or diccht Brushed wire) and earth this, then the induced magnetic Elekt

• ## Ask the inclined throw!12-06

why is the angle when inclined throw a maximum of 45 degrees --answer-- This is not quite true! The "crooked" Throw delivers results in principle at all angles. If we assume the horizontal 0 degrees results in the following results. > 0 to &l

Hi, how do I read an analog ammeter? There's a wheel with different scales (mA, V) when I turn the wheel for example, on 10 and above in the display 5.8, there are even 5.8 if I had it turned on 100, it would indeed be 580 (or?), but how do I explain

Tags: Physics, current
• ## Centrifugal force!?!05-09

Hey, how many types of centrifugal force there eig.? What are they doing and what are their names?

Tags: Physics
• ## Physics: brakes on a slope04-11

Hello, I have a question in physics. I'm uphill in search of formulas for braking movement of a vehicle in an inclined plane, or down and find this unfortunately little. Downhill, the vehicle's only come to a standstill when it decelerates, but also

• ## What happens to the electricity when a cable of the circuit is heated?02-11

"" "This question I have to answer in physics, but have no idea what's happening Maybe someone can help me.? / Thank you! --answer-- Copper is like most metals a so-called cold conductors. when cold it passes better than state in the warm.

Tags: Physics, electricity
• ## What is an 'internal mechanical condition'?02-09

What is an internal mechanical state in mechanics? What can you mean by, or can someone briefly explain an example of me? Have on google unfortunately found nothing. Thank you in advance. lg --answer-- Perhaps much internal energy or temperature whic

• ## Flying with Inenantrieb possible?01-05

Hello, For Interstellar travel is indeed ion drives are ideal for space launches this are to Wikipedia too weak. Would they but sufficient for my sake a small plane to bring stand on for? Greetings =) --answer-- No, even a light aircraft needs relati

Tags: Physics, aircraft, ion drive
• ## Physics Doppler Effect11-15

Hello, I have to figure out a math example the speed of the moving body approaches a stationary sound source. If this formula because correct? v = ((Fs x (1 + c)) / Fb where Fs is the stationary sound source and Fb of the moving observer. Thank you,

Tags: Physics, Mathematics
• ## how to convince heat thermal insulation in the house11-01

Hey I write on Friday a working. it comes to heat insulation in the house and we have the theme since 2tagen .... unswar: explain how and where heat protection on building up and energy production are possible? (It is a normal house with a roof) peop

• ## extreme insomnia and prüfungsanst ?!10-08

Hello people ... I currently insomnia massive. I wake up at night as against 1 watch and guard then on almost every hour, until I have to get up at 5.35. I am then always restless when I wake nacjts. Especially extreme that is so at work, especially

Tags: Physics, sleep disorder
• ## build buoyancy work itself02-27

Hello ertsmal (I'm not born in 1962 but in 1999;)) My class and I have this year degree and want to dominate the appraisal issue the buoyant power plant. Now we want to but build yourself and do not know how to do it ..... Can anyone help us? LG Jona

Tags: Physics
• ## unevenly accelerated motion12-17

As I calculate a route that has been unevenly accelerated? there for a formula? --answer-- Provided that it is (in the simplest case) is a straight, non-uniformly accelerated motion, it should be noted that the acceleration (a) is not constant. The d

Tags: Physics, speed
• ## Date will be surprised interplay of cold and hot09-25

Hey dear ones, I need your help urgently times. I encountered tomorrow with NEM types, he is 22 years and we've known since about 2 years, but have only been 2-3 weeks properly close contact. Anyway, I'm 17 :) about our meeting, I do not know much, h

• ## Physics - Stokes law task09-20

I come with a task in physics can not handle really. We also do not have to find out the final solution, but we only grope .. After Stokes friction law applies to the frictional force in a viscous medium (eg, air): FR = 6 pi eta r v (this eta is the

Tags: Physics, friction, bill, charge, Millikan