More new questions »

Answered

In Science

A pendulum is an object that is attached to a pivot point so it can swing without friction. This object is subject to a restoring force that will accelerate it toward an e…quilibrium position. When the pendulum is displaced from its place of rest, the restoring force will cause the pendulum to oscillate about the equilibrium position. In other words, a weight attached to a string swings back and forth. A basic example is the simple gravity pendulum or bob pendulum. This is a weight (or bob) on the end of a mass less string, which, when given an initial push, will swing back and forth under the influence of gravity over its central (lowest) point. The regular motion of pendulums can be used for time keeping, and pendulums are used to regulate pendulum clocks. (MORE)

Answered

In Science

The bob is the weight at the end of the pendulum. For example, in a grandfather clock the ball at the end of the stick is the bob.

Answered

In Calculus

The longer the length of the pendulum, the longer the time taken for the pendulum to complete 1 oscillation.

Answered

In Science

The most accurate way to model a pendulum (without air resistance) is as a differential equation in terms of the angle it makes with the vertical, θ, the length of the pendul…um, l, and the acceleration due to gravity, g. d²θ/dt² = -g*sin(θ)/l There is no easy way to integrate this to get θ as a function of time, but if you assume θ is small, you can use the small angle approximation sin(θ)~θ which makes the equation d²θ/dt² = -g*θ/l Which can then be integrated to get the solution θ(t)=θmax*sin(t*√(g/l)) Using this equation, you can easily derive that the period of the pendulum (time required to go through one full cycle) would be T=2π*√(l/g) If air resistance is also accounted for in the original differential equation, the exact equation will be much harder to derive, but in general will involve an exponential decay of a sin function. (MORE)

Answered

In Kinematics

A bar pendulum is a long iron rod, which use in the experiment of which one of the edges is fixed to move to and fro.

Answered

In Science

2 pi times the square root of (the length divided by acceleration due to gravity)

Answered

A security whose price is dependent upon or derived from one or more underlying assets. The derivative itself is merely a contract between two or more parties. Its value is de…termined by fluctuations in the underlying asset..
The most common underlying assets include stocks, bonds, commodities, currencies, interest rates and market indexes. Most derivatives are characterized by high leverage.Derivatives are generally used as an instrument to hedge risk, but can also be used for speculative purposes.. (MORE)

Answered

In Uncategorized

the 5s because it has better service but it dosent have diffrent colrs just silver gold and black

Answered

In Technology

The bearing on a clock pendulum is usually two knife edges with a cross piece balanced upon it supporting the pendulum. Sometimes on cheaper clocks a very thin strip of spring…y steel is used. (MORE)

Answered

20c + 5 = 5c + 65 Divide through by 5: 4c + 1 = c + 13 Subtract c from both sides: 3c + 1 = 13 Subtract 1 from both sides: 3c = 12 Divide both sides by 3: c = 4