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grishma gautam • asked a question

QUESTIONS

1. Is the tension in the string of a simple pendulum constant throughout the oscillations?

2. The amplitude of a simple harmonic oscillator is doubled. How does this...

1.ans: No the tension in the string of a simple pendulum is not constant throughout the motion

v is velocity of the bob and theta is the angle made by the string with vertical axis.
as v and $θ$ both are variable T is also variable.
T is maximum at mean position as at mean position v is max and the angle is minimum.

2.ans: If the amplitude of the simple...

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NANDANI KUMARI • asked a question

Following reactions occur at cathode during the electrolysis of aqueous copper (II) chloride solution:

Cu2+(aq) + 2 e-2 ———–> Cu(s) E = + 0.34 V

H+(aq) + e-1 ————-> 1/2H2(g) E = 0.00 V

On the...

SinceECu2+/Cuhas a greater positive value thanEH+/H, the reaction that is feasible at the cathode is

Cu2+(aq)+2eCu(s)

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Diwas Pandit • asked a question

What does the negative of a vector mean?

A negative of a vector represents the direction opposite to the reference direction. It means that the magnitude of two vectors are same but they are opposite in direction.

For example, if A and B are two vectors that have equal magnitude but opposite in direction, then vector A is negative of vector B.

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grishma gautam • asked a question

In a stormy day a boy observes a lightening flash which is followed by a thunder 3 sec. later. How would you estimate the distance of the lightening strike from the boy? ( given, velocity of sound...

Time taken (t) = 3 sec
Velocity of sound (v) = 332 m/s
Distance travelled (d) = ?

We know,

d = v x t = 332 x 3 = 996 m

Hence, the source of thunder is about 996 m far from the boy.

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Prasiddha Subedi • about 1 year ago

Journal Entry: February 16th, 2023

Dear Journal,

As a student, I've always dreamed of making a difference in the world. But lately, I've been feeling a bit overwhelmed and unsure about how to turn that dream into a reality. That's why I've decided to start keeping a journal, to document my journey and hopefully inspire others along the way.

I remember when I first started college, I was so excited to be there. The campus was bustling...

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