Why is velocity zero when acceleration is Max?
Since acceleration is the change in velocity over time, there has to be a change in velocity for something to accelerate. In other words, if something is accelerating, it has to have a variable velocity. If the velocity is constant however, the acceleration is zero (because the velocity isn’t changing over time).
Does egg come out during period?
A woman is born with all her eggs. Once she starts her periods, 1 egg develops and is released during each menstrual cycle.
At what age menstruation stops?
Menopause is the time that marks the end of your menstrual cycles. It’s diagnosed after you’ve gone 12 months without a menstrual period. Menopause can happen in your 40s or 50s, but the average age is 51 in the United States.
What boyfriend should do when girlfriend is on period?
Ask Her What She Needs
- Be patient! Don’t blame her irritability on her period, but try to understand where she’s coming from.
- Bring her the food she craves. Whether it’s ice cream she’s after or she’s one of the rare women who crave a green juice, just go and get it.
- Be attentive.
- Give her a massage.
- Give her space.
Is it rude to ask a woman if she’s on her period?
Have you ever asked one of them if she was on her period or perhaps been tempted to inquire? Take it from me: Don’t. Presuming that female reproductive organs make women behave irrationally is rude and sexist. It also evokes the same unscientific beliefs that have always held women back.
At which point the acceleration of a body in SHM is maximum?
At the equilibrium position, the velocity is at its maximum and the acceleration (a) has fallen to zero.
What is Velocity in SHM?
Velocity in SHM Velocity is distance per unit time. We can obtain the expression for velocity using the expression for acceleration.Let’s see how. Acceleration d2x/dt2 = dv/dt = dv/dx × dx/dt. But dx/dt = velocity ‘v’ Therefore, acceleration = v(dv/dx) (II)
Where is the acceleration of the body performing SHM minimum?
Irrespective of the position of the particle performing S.H.M., the direction of acceleration is always towards the mean or equilibrium position. Special Cases: Case – I: When the body is at the mean position, its displacement x = 0. Thus at the mean position, acceleration is minimum and i.e. zero.
How do you prove SHM?
By definition, if a mass m is under SHM its acceleration is directly proportional to displacement. These equations demonstrate that the simple harmonic motion is isochronous (the period and frequency are independent of the amplitude and the initial phase of the motion).
Where is the velocity of the body maximum and minimum in case of simple harmonic motion?
In SHM, velocity is maximum at equilibrium position.
What time period is SHM?
The period T and frequency f of a simple harmonic oscillator are given by T=2π√mk T = 2 π m k and f=12π√km f = 1 2 π k m , where m is the mass of the system. Displacement in simple harmonic motion as a function of time is given by x(t)=Xcos2πtT x ( t ) = X cos 2 π t T .
What is SHM equation?
For a simple harmonic oscillator, an object’s cycle of motion can be described by the equation x ( t ) = A cos ( 2 π f t ) x(t) = A\cos(2\pi f t) x(t)=Acos(2πft)x, left parenthesis, t, right parenthesis, equals, A, cosine, left parenthesis, 2, pi, f, t, right parenthesis, where the amplitude is independent of the …
What is K in SHM?
The letter K that is seen in several expression related to Simple Harmonic Motion (SHM) is a constant. It is usually called spring or force constant (N·m-1).
How can we find time period?
As the frequency of a wave increases, the time period of the wave decreases. The unit for time period is ‘seconds’. Frequency and time period are in a reciprocal relationship that can be expressed mathematically as: T = 1/f or as: f = 1/T.
What is period of oscillation?
the smallest interval of time in which a system undergoing oscillation returns to the state it was in at a time arbitrarily chosen as the beginning of the oscillation.
What is the period of motion?
The period of the object’s motion is defined as the time for the object to complete one full cycle. Being a time, the period is measured in units such as seconds, milliseconds, days or even years. The standard metric unit for period is the second. An object in periodic motion can have a long period or a short period.
What is relation between frequency and time period?
Sound | Short/Long Answer Questions The number of times a cycle is completed in a second is the frequency. The time taken to complete one vibration is called time period. Frequency and time period is inversely proportional, the number of vibrations per second is frequency.
How do you convert time to frequency?
The formula for frequency is: f (frequency) = 1 / T (period). f = c / λ = wave speed c (m/s) / wavelength λ (m). The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz).
What is the frequency of time period?
T is the time it takes for one complete oscillation , it is measured in seconds. All waves, including sound waves and electromagnetic waves , follow this equation. For example, a wave with a time period of 2 seconds has a frequency of 1 ÷ 2 = 0.5 Hz. A sound wave has a time period of 0.0001 seconds.
Is Omega the period?
ω = angular frequency of the wave. T = time period of the wave.
What is difference between Omega and F?
In general, ω is the angular speed – the rate change of angle (as in a circular motion). Frequency (f) is 1/T or the number of periodic oscillations or revolutions during a given time period. Angular speed or angular frequency, relates the same idea to angles – how much angle is covered over a time period.
How is Omega calculated?
Angular frequency ω (in radians per second), is larger than frequency ν (in cycles per second, also called Hz), by a factor of 2π. This figure uses the symbol ν, rather than f to denote frequency. A sphere rotating around an axis. Points farther from the axis move faster, satisfying ω=v/r.
Is Omega equal to V R?
The greater the rotation angle in a given amount of time, the greater the angular velocity. Angular velocity ω is analogous to linear velocity v. We can write the relationship between linear velocity and angular velocity in two different ways: v=rω or ω=v/r.
What is Omega multiplied by time?
At a particular moment, it’s at angle theta, and if it took time t to get there, its angular velocity is omega = theta/t. So if the line completes a full circle in 1.0 s, its angular velocity is 2π/1.0 s = 2π radians/s (because there are 2π radians in a complete circle).
What is Omega in physics circular motion?
Angular velocity ω measures the amount of rotation per time. It is a vector and has a direction which corresponds to counterclockwise or clockwise motion (Figure 1). The relationship between the speed v and the angular speed ω is given by the relationship v = r ω v=r\omega v=rωv, equals, r, omega.
Is torque a vector?
Torque is a measure of the force that can cause an object to rotate about an axis. Torque is a vector quantity. The direction of the torque vector depends on the direction of the force on the axis.
Is Omega angular velocity?
In general, angular velocity is measured in angle per unit time, e.g. radians per second (angle replacing distance from linear velocity with time in common). Angular velocity is usually represented by the symbol omega (ω, sometimes Ω).