Translational Definition and 164 Threads

I have a physics problem that is asking about translational acceleration... it says this: "What is the magnitude of the translational acceleration at a point on the rim at t=10?" Is this referring to a=(r)(alpha) or is it referring to: a=(a_t^2+a_c^2)^1/2

Homework Statement Two closed containers A and B contain equal number of moles of ideal gases GD (diatomic)and GM (Monoatomic) ,respectively. Q .1 a) If the temperature of gases are same,which of them has more average translational kinetic energy ? b) Which of them has more...

Homework Statement A container having a volume of 1m^3 holds 5 moles of helium gas at 50C. If the helium behaves like an ideal gas, the rms translational kinetic energy is? Homework Equations Total E= 3/2 nRTThe Attempt at a Solution I tried solving this question using this equation, but I did...

Torque, in particular, is always a concept that has confused me. Can the rules related to torque be derived or are they natural tendencies? (For lack of a better way to phrase this). For example, if I were trying to solve the problem of a ladder leaning against a frictionless wall, where I...

Hi. I've been working on a project of angle stabilization for a vehicle moving along a string, looking like this: The propulsion system is connected to the central wheel, while the outer two wheels are used for support. I've observed that during acceleration the vehicle rotates. I...

Suppose two friends, with masses m2 = 1.3 m1, are on a perfectly smooth, frictionless, frozen lake. They are both holding the end of a rope of length Lo . a. Find the position of the center of mass, in terms of Lo , from the smaller person. b. If the two pull half of the rope in such...

Ok so if there be a piece of iron in a uniform magnetc field B, what will be the force on the iron? You can assume any variable you want, but i want to find the magnetic force that causes the iron pieces to move towards the magnet in terms of any variables, like it corss-sectional area, length...

Homework Statement I am making a hanging mobile which needs to be done mathematically by calculating torque. The problem is, I can't seem to figure out how to solve for the distance. You see, all of the problems we did in class talked about finding mass, but to do this project, I already...

Suppose there was a mass, m1, traveling rightwards at v0. There is a second mass, m2, above the line of motion of m1, and which has a rigid, massless bar of length L attached to its center of mass. This bar extends downwards so that the terminal intersects with the path of m1. When m1 reaches...

Homework Statement Not actually a problem, I'm just curious why: when calculating total kinetic energy during rolling, you have the translational kinetic energy=0.5mv^2, and the rotational KE=0.5Iω^2. But then ω=v/r, so rotational KE=0.5I(v/r)^2. And for some reason, the v in both equations...

searching for equation for translational equilibrium for horizontal components of force

A uniform marble rolls down a symmetric bowl, starting from rest at the top of the left side. The top of each side is a distance above the bottom of the bowl. The left half of the bowl is rough enough to cause the marble to roll without slipping, but the right half has no friction because it...

Homework Statement A ball rolls without slipping down incline A, starting from rest. At the same time, a box starts from rest and slides down incline B, which is identical to incline A except that it is frictionless. Which arrives at the bottom first? (a) The ball arrives first. (b) The...

Homework Statement Suppose you are standing uptight with your right arm stretched out straight in front of you, palm down, the upper arm rotating rightward relative to space at 2 radians/s and the elbow flexing in the horizontal plane at 2 radians/s. What is the rotational velocity of the...

The question describes a scenario in which three balls of equal mass are launched from a cannon on top of a 100m cliff at the same speed (50 m/s) but at different angles (0, 30, and 60 degrees). The question asks which of the following balls hits the ground with the greatest kinetic energy. The...

Homework Statement I'm studying for my MCAT and currently on translational motion. Rather than memorize the formulas, which would be useless for this type of test, I'm trying to learn and understand where the formulas come from, which requires knowing how to derive them. I need help with...

Homework Statement "A bowling ball encounters a .760m verticle rise on the way back to the ball rack. Ignore frictional losses and assume the mass of ball is distributed uniformly. Translational speed of ball =3.5 m/s at the bottom of the rise. Find translational speed at the top." -Ball is...

Hi everyone, I was watching an MIT OpenCourseWare video where the lecturer describes the problem of a rulers motion on a frictionless surface after being subjected to a 'short' impulse orthogonal to the long axis of the ruler. (sorry as a new user I can't post images, youtube 'MIT torque...

1) When there is no friction , a wheel with a Vcm = X m/s will only be slipping across the surface at a constant velocity.It won't be rotating because there will not be any forces creating torque. 2) The system ( composed of the rotating object ) always tries to find a balance between...

A massless string is wrapped around the equator of a solid sphere (mass M = 76.2 kg, radius R = 0.211 m). A girl holds the free end of the string, and the sphere is released from rest, Assume: - the sphere is always parallel to the floor - the string is always perpendicular to the radius of...

When a ruler is placed on a pivot and I push it down from one side, then there is a moment. But then is there any linear movement? Since there is no translational equilibrium then won't there be a linear motion? Then how does rotational equilibrium come into play here?

Homework Statement Suppose a cup of boiling water (m=250g) instantaneously cools to room temperature (25°C) with the liberated thermal energy going into translational KE. How fast will the cup fly off the table? Assume the water molecules have 18 degrees of freedom. Homework Equations...

An green hoop with mass mh = 2.4 kg and radius Rh = 0.18 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.4 kg and radius Rd = 0.09 m. The other end of the string is attached to a massless axel through the center of an orange sphere on a flat horizontal surface that...

Homework Statement I am trying to figure out how to determine a vehicle's translational acceleration given a torque at the wheels so that I can determine what effect wheel diameter and mass will have on the ultimate translational acceleration. Homework Equations F = Ma I*alpha =...

I have a question about translational equilibrium. Consider a 3m by 3m sheet on the x-y plane. The center of mass is at the origin. Force-1 of 10 N acts on the top left corner of the sheet and points left. Force-2 of 20 N acts on the bottom right corner of the sheet and is directed...

i don't understand this at all... if we tip over a rectangular block (such that a corner is its pivot), will it have rotational kinetical energy, translational kinetic energy, or both when it hits the ground?

Homework Statement My question relates to a physics problem dealing with the orbit of a moon. In the problem, the orbit of the moon shrinks such that its radius to the center of the planet in question (here, Earth) is smaller. The question gives a great deal of information, but at one point...

Homework Statement A spherical bowling ball with mass m = 3.4 kg and radius R = 0.115 m is thrown down the lane with an initial speed of v = 8.5 m/s. The coefficient of kinetic friction between the sliding ball and the ground is μ = 0.27. Once the ball begins to roll without slipping it moves...

I had a thought-experiment I was pondering the other day. If you could somehow isolate a single atom inside a vacuum inside a Faraday cage, how would that atom behave in terms of translational movement?

Homework Statement Find the ratio of the translational kinetic energies of a ring, a coin, and a solid sphere at the bottom of an inclined plane. The bodies have been released from rest at the top. Assume pure rolling without any slipping. The Attempt at a Solution Well, I'm really not...

Homework Statement If two circular discs A and B of mass m and 3m and radii R,2R, respectively. are placed from the top of a rough inclined plane, which disc will reach bottom first.2. The attempt at a solution NOTE: u is coefficient of friction (both kinetic and static). g is acceleration due...

Homework Statement Hello, this is not actually a homework problem. I just can't seem to understand the derivation of the average translational kinetic energy of a molecule. I am startled by the way the velocities are added. Homework Equations My undergraduate level textbook says...

What is the total random translational kinetic energy of 5.10 L of hydrogen gas (molar mass 2.016g/mo with pressure 1.04×10^5 Pa and temperature 301 K? K=3/2nRT Pv=nRT P=1.01*10^5 V=5.1*10^-3 Is it just PV/RT=n K=3/2(PV/RT)(RT) K=3/2 PV K=772.62 J Is that right because that seems too easy

Perhaps this should be under physics, but my mechanics course is done by the maths department... I don't actually have a particular problem, just a question. If you have a body (say a rod) with translational motion and rotation about an axis that is not its centre of mass, is there a way...

Homework Statement A bucket filled with water has a mass of 86.5 kg and is attached to a rope that is wound around a 0.44 m radius cylinder. What torque does the bucket produce around the center of the cylinder? Homework Equations I=2/5 mr^2 w=v/r mgh=1/2 mv^2+1/2lw^2 The Attempt...

In an inertia experiment using equipment very similar to the link below, I determined the following: Trial with two 100 g masses near the ends of the rotating apparatus (larger moment arm): - Final translational kinetic energy: 5.73 * 10^(-4) J - Final rotational kinetic energy: 0.638 J...

Hi there, Ok from my lectures: Temperature is due to the Kinetic energy of molecules. Kinetic energy can be due to vibrational, rotational, translational and/or electronic motion. Now when you move an object from one place to another, aren't the molecules undergoing a nett translation...

The question is give an example of post translational modifcation of a protei brought about my vitamin A. Now I checked my book which says vitamin A plays a role in vision, reproduction, growth, maintenance of epithelial cells. I checked the net as well couldn't find the answer . Can anyone tell...

Hi, Assume the following action: \int d^4 x L[\phi,A]+ \int d^4 x A_{\mu} (x) J^{\mu}(x) What are the conditions on the form of action to have space/time translational invariance for a two point function: \left\langle J_{\mu}(x) J_{\nu}(y) \right\rangle = G_{\mu \nu}(x-y)...

Homework Statement A solid cylinder w/ mass m, radius r, and rotational inertia 1/25mr2 rolls without slipping down an inclined plane. THe cylinder starts form rest at height h. The inclined plane makes an angle θ w/ the horizontal.Determine the translational speed of the cylinder when it...

relationship of angular velocy and translational velocity in simple circular motion?? Like if something is going in a circle of radiues R at speed v with angular velocity w, then w=v/R. Where does this relation come from? I'm having trouble deriving it. Please help! EDIT: I think i got it...

high this isn't really a homework question, but can someone tell me how to Calculate the translational angular momentum i forgot. thanks

Homework Statement m1 = 5 kg, v1 = < 11, -4, 12 > m/s m2 = 7 kg, v2 = < -14, 6, -6 > m/s m3 = 5 kg, v3 = < -27, 35, 24 > m/s What is the total kinetic energy of this system? Homework Equations Momentum(total) = Mass(total)*Velocty(of Center of Mass) Ktranslation =...

Homework Statement A particle moving from position 1 to position 2 moves along path C ( which is half a circle ). It travels at a constant speed of 5 pi m/s. At exactly half way ( 1/4 of a circle ) through the trip its average vertical velocity is? Radius is 5 meters. Homework Equations...

can someone please explain me the differences between angular, rotational, translational and tangential vecoity pls. I am struggling to understand how their differ from each other and how they are caluclated.

Studying for the MCAT, and trying to figure out how t = sqrt(2h/g) and t = Vo*sqrt(2h/g) is derived from the standard translational motion equations. h = change in h t = change in t thus... h = Vot + 1/2g(t)^2 h - Vot = 1/2g(t)^2 (2h)/g - (2Vot)/g =t^2 sqrt(2h/g) - sqrt(2Vot)/g = t...

Suppose I am floating in space and have a thin rod oriented vertically floating in front of me. This rod has its center of mass in the center of the rod (uniform mass distribution) and is not fixed to anything. I then throw a point particle with non-negligible mass horizontally;it hits the rod...

What is the difference between transcriptional and translational fusion? As I understand it, transcriptional fusion places a reporter, like lacZ, downstream of the promoter of your gene of interest (so it does not include your entire gene). Is this the same thing in a translational fusion...

Homework Statement A hollow cylinder with a mass of 1.2 kilograms and a diameter of .25 m rolls down an inclined plane angled at 35 degrees. What is its translational velocity at the bottom of the incline plane if the distance traveled is 3 meters?Homework Equations v=\sqrt{gh} ? The Attempt...

1. The average translational kinetic energy of a nitrogen molecule at temperature is _____ check picture 2. 3. The Attempt at a Solution : since nitrogen is diatomic then it has 5 degrees of freedom and therefore the average kinetic energy wouldn't be 3/2kt it would...