i need the answer quickly 21-Which of the following can be zero, when a particle is in motion for some time?(a) displacement (b) none of these (c) distance(d) speed22-The dimensional formula for speed is(a) T-¹(b) LT-¹(c) L-'T-¹(d) L''T23-A simple pendulum is kept oscillating in a lift. If the lift starts moving down with uniform velocitythen the periodic time of the simple pendulum_(a) will increase(b) will not change(c)will decrease(d) will be zero24- In SHM of a simple pendulum, the component of weight which is directed towards mean position is(a) mg cose(c) mg tane(b) mg sine(d) none of above25-The units used to measure derived quantities are known as(a) square units.(b) derived units(c) base units(d) scalar units26- In a simple pendulum, the force acting along the string is(a) 0(b) mg sine(c) mg cost(d) 127-If potential energies and kinetic energies are equal then displacement of an object in SHM is(a) 4(b) 0(c) 2(d)628-If the time period of a simple pendulum is 2 s then it's length is(a) 1.02m(b) 1.2m(c) 1.4m(d) 1.5m29-The restoring force pushes or pulls the oscillatory object(a) towards mean position (b) away from mean position (c) at central point (d) extreme point30- An object at rest may have(a) momentum(b) potential energy(c) velocity(d) kinetic energy

Solution 21- If a particle is in motion for some time then the distance covered by it can never be…

21-Which of the following can be zero, when a particle is in motion for some time? (a) displacement (b) none of these (c) distance (d) speed 22-The dimensional formula for speed is (a) T-¹ (b) LT-¹ (c) L-¹T-¹ (d) L'T 23-A simple pendulum is kept oscillating in a lift. If the lift starts moving down with uniform velocity then the periodic time of the simple pendulum_ (a) will increase (b) will not change (c)will decrease (d) will be zero

21-Which of the following can be zero, when a particle is in motion for some time? (a) displacement (b) none of these (c) distance (d) speed 22-The dimensional formula for speed is (a) T-¹ (b) LT-¹ (c) L-¹T-¹ (d) L'T 23-A simple pendulum is kept oscillating in a lift. If the lift starts moving down with uniform velocity then the periodic time of the simple pendulum_ (a) will increase (b) will not change (c)will decrease (d) will be zero

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

The answers for this question are incorrect, is there another method to solve this?
the options for the question are 2,700 - 27,000 - 1,400 - 14,000
THESE ARE NOT THE ANSWERS THIS IS DUE BY MIDNIGHT HELP
If you can only choose one, what would it be?
wrong answer. please provide the right answer. thank you!
Three particles with charges q₁ = +10 μC, q₂ = -20 μC and q3 = +30 μC, are positioned at the vertices of an isosceles triangle with sides a = 0.1 m b = 0.06 m as shown in the Figure. How much work must we do to exchange the positions of q₁ and q3 ? Give your answer in Joules. Hint: What is the Energy of the system of 3 charges as they are and what is its Energy when the positions of 91 and 93 are exchanged? What does the difference between these energies represent?
What letter is the exact answer?
the answer should be 26 according to the professor
The answers given are incomplete. Please provide complete answers, typed out (not handwritten). Thank you.
What is the mass of an electron? Also, mention the mass of a proton.