# physics and calculating

• ## 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

• ## Calculate frequency and vibrations in physics02-13

Hello, I need help with the following task: As the frequency varies depending on the speed of the exciter? Excitation rate: 0.75 times wave velocity I hope there's a physics genius here;) --answer-- So the frequency increases with increasing frequenc

• ## Centrifugal force = Zentipetalkraft01-05

Is it true that one centripetal, the same formulas as that of the centrifugal force? --answer-- It should be noted that the centrifugal force is an apparent force and occurs only in the rotating frame. The centripetal force always. Yes, actually that

• ## Can one with a probability calculation to crack a combination lock?12-04

--answer-- The question is not trivial. Only it's not worth it for a bicycle lock to try. But computers are faster a person when entering. So if no other device is not present, can get a four vice-celled PIN crack into an account in not too long ago.

• ## What I'm doing wrong?10-09

Hey guys! So the following: The performance of a theoretical engine is always constant P. The work done in a time t is E (t) = P t The speed of the car is indeed therefore root (2Pt / m), as P t = 0,5mv² The route which the car t travels to time yes

• ## calculate balloon10-04

How to calculate the air-tight a hot air balloon? --answer-- Without more detailed information to calculate nothing but can only rumraten. It takes a minimum pressure, temperature, volume, weight of the balloon or sontwas given. Either the task from

• ## Q = n * e Physics09-13

Hi, I often with the changing of formulas problems. In the case obrigen Q = n * e when surrounded by n is then: n = Q: e? And according to e, e = Q: n? or how does that work? --answer-- Yes that's right. you bring as simply e with the opposite sign t

• ## how rounds in physics?08-23

if you eg 6,24x10 ^ 17 x 1.602x10 ^ was -19, is then rounded up to two filters, because of the 10 or are not powers? you then rounds on three questions for 6.24? --answer-- Other. applies: the final result can not be more accurate than the least accu

• ## Formula dissolve IMPORTANT!08-21

Can I help a formula to resolve vo? 0 = x × tan (alpha) - g ÷ 2 (x ÷ × vo cos (alpha)) + h Have been several attempts, but the solution does not make sense and somehow I always come to different results when I umforme different! Hope someone can help

• ## Physics calculation ohm and millimeter07-26

Hey people Here the task (physical signs are in words and {braces} written): R = 0.017 {ohm per square millimeter} {} times {800mm by} 2.5 {square millimeter} I hope you understand this and can help me. Eure allie --answer-- R = rho * l / A = 0.017 [

• ## Square in cubic meters06-22

Tach ... times a question. Either I'm too stupid, or I do not know. Did not really find anything to convert even at Google. To the point: Can someone tell me how much cubic meters are 65 sqm Someone ?? Dankööö .... --answer-- 1 cubic meter is 1 meter

• ## What are 1g / cm ^ 3 in kg / m?05-04

--answer-- 0.001 kg / m³ 0.000001 = 1000 kg / m³ I mean g / cm ^ 3 in kg / m ^ 3 :) Formulary?

• ## Physics object to uniform motion, need help12-20

It is about the following problem: A car overhauled with V1 = 108km / h a truck of 18m length of = 72 km / h with V2. How long does the Überhgolvorgang when the sheering begins 50 meters behind the truck and 50m is stopped in front of him? So, I've o

• ## calculate Physical Firmel ....?11-02

So I have the formula present Mf = 1 - e (high) - (6260m / s: 3618m / s) = 0.82 How would the result if it were; Mf = 1 - e (high) (3800m / s: 1228 m / s) ??? thank you in advance --answer-- .9547 (I suppose it should be a minus sign in the exponent

• ## Calculating with angular momentum?09-07

Can someone please calculating the angular momentum L (L0 = inertia Winkelgeschiwndigkeit) explain an example with units. Although I know the principle, but I do not like at the end (kg m) / s ^ 2 comes out. Thanks in advance! --answer-- Angular mome

• ## Can someone help me with a physics object to freefall?04-19

Hello, I have a physics object to free fall, when I need your advice. It is: A parachute jump can be divided into four motion segments. (Only one section in my question.) geg .: h = 2000m Free fall up to the maximum rate of fall of v = 60 m / s My qu

• ## Unit weight force03-09

Hi, anyone knows what is the unit of weight force, ie the formula G = m • g? I already looked in Google, but there was nothing standing of the unit. Thanks for answers! --answer-- kg times meters divided by seconds up 2 also known as Newton. But is t

• ## How to calculate the percentage variance of something (physics)03-08

Since ne! --answer-- difference in diameter size

• ## Kreis / Looping calculated over curvature10-05

Hi, I have the following problem, I would like to calculate how big a loop should be at least (radius / diameter) so that a model car could drive through without it somehow remains hanging or grind would *. The car has a wheelbase of 26cm (axial cent

• ## Physics Help? Calculation of S t V?09-10

Hey guys :) I should calculate the total distance that drives the car while it overhauled at a constant speed the truck. The rest is explained by actually from the accompanying drawings. That is the job A. When B is the total distance I also calculat