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The amplitude of a damped oscillator decreases to 0.9 times its original magnitude in 5s. In another 10s it will decrease to α times its original magnitude, where α equals : - physics 20130 AnswerA harmonic oscillator is oscillating with a frequency of 3 Hz. .Physics CBSE class 11 20160 AnswerThe numerator of a fraction is 3 less than its denominator. If 2 is added to both the numerator and the denominator then the sum of the new fraction and original fraction is 29/20. Find the original fraction. Mathematics CBSE class 10 20151 AnswerThe sum of the digits of a two digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, find the original number. Gate-Agricultural-20161 AnswerUnder what condition(s) is the magnitude of average velocity of an object equal to its average speed? - Physics Cbse class 11 1 AnswerConsider a uniform plane wave with amplitude E of 10V / m and 1.1GHz frequency travelling in air, and incident normally on a dielectric medium with complex relative permittivity and permeability as shown in the figure.GATE EC 20151 AnswerWhat is the magnitude of the gravitational force between the Earth and a 1 kg object on its surface? (Mass of the Earth is 6 × 1024 kg and radius of the Earth is 6.4 × 106 m). - - Physics Cbse class 11 1 AnswerAn object of mass m is moving in a circular motion of radius r at a constant speed v. Obtain an expression for the magnitude of acceleration of the object. -Physics CBSE class 110 AnswerA farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position? -Physics Cbse class 11 1 AnswerAn object of mass 100 kg is accelerated uniformly from a velocity of 5 ms-1 to 8 ms-1 in 6 s. Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object. - Physics Cbse class 11 0 AnswerAn object experiences a net zero external unbalanced force. Is it possible for the object to be travelling with a non-zero velocity? If yes, state the conditions that must be placed on the magnitude and direction of the velocity. If no, provide a reason. - Physics Cbse class 11 0 Answer A coin is tossed 200 times and is found tha ta tail comes up for 120 times. Find the probability of getting a tail. CBSE class 0 Mathematics0 AnswerA two digit number is four times the sum of the dig its. It is also equal to 3 times the product of digits. Find the number. CBSE Mathematics1 AnswerA 1-h rainfall of 10 cm magnitude at a station has a return period of 50 years. The probability that a 1-h rainfall of magnitude 10 cm or more will occur in each oftwo successive years is: GATE- Civil Engineering- 20131 Answer If Soha’s heart beats 72 times in one minute, how many times does it beat in one hour. - class 5 math 1 AnswerA hockey ball of mass 200 g travelling at 10 ms-1 is struck by a hockey stick so as to return it along its original path with a velocity at 5 ms-1. Calculate the change of momentum occurred in the motion of the hockey ball by the force applied by the hockey stick. - Physics Cbse class 11 1 AnswerWhich of the following is true for displacement? -Physics Cbse class 11 1 AnswerAn infinitely long hollow conducting cylinder with inner radius R/2 and outer radius R carries a uniform current density along its length. The magnitude of the magnetic field, | B | as a function of the radial distance r from the axis is best represented by - jee main 2012 physics 1 AnswerWhich one of the following has been added to the list of original Fundamental Rights? 1 AnswerA bullet of mass 10 g travelling horizontally with a velocity of 150 ms-1 strikes a stationary wooden block and comes to rest in 0.03 s. Calculate the distance of penetration of the bullet into the block. Also calculate the magnitude of the force exerted by the wooden block on the bullet. - Physics Cbse class 11 1 Answer