Describe the three reforms introduced in russia by tsar nicholas ii after the revolution

In a certain region surrounding the origin of the coordinate, vec(B) = 5 xx 10^(-4) hat(k) T and vec(E ) = 5 hat(k) V/m. A proton enters the fields at the origin with an intial velocity vec(V_(0)) = 2.5 xx 10^(5) hat(i) m/s. Discribe the protons motion and give its position after three complete revolutions

A uniform smooth rod (mass m and length l ) placed on a smooth horizontal floor is it by a particle (mass m ) moving on the floor, at a distance l/4 from one end elastically (e = 1) . The distance travelled by the centre of the rod after the collision when it has completed three revolutions will be

Each of the questions below consists of a question and two or three statements given below It. You have to decide whether the data provided in the statements are sufficient to answer the question On which day of the week did Suresh visit Chennai? {Assume that the week starts from Monday.) I) Suresh took a leave on Wednesday. II) Suresh visited Chennai the day after his mother’s visit to his house. III) Suresh’s mother visited Suresh’s house on neither Monday nor Thursday. 1) Only II and III 2) Only II 3) Only I and II 4) Only I and III 5) All are not sufficient.

Each of the questions below consists of a questionand two statements numbered I and II given below ti. You have to decide whether the data provided in the statements are sufficient to answer the question. Read all the three statements and - On which day of the wekk ( starting from Monday and ending on Sunday of the same week ) did Sushant visit Chennai" I. Sushant visited Chennai two days after his brother visited Chennai. II. Sushant did not visit Chennai either on Wednesday or on Friday.

An athlete is running on a circular track PQRS of radius 100 m shown below He starts from point P and moves clockwise. (i) Find the distance travelled by him and displacement when he (a) reaches Q (b) moves from Q to S (c ) reaches P again after one revolution (ii) If he completes one revolution in 5 minutes find his (a) average speed (b) average velocity

Three persons walking around a circular track complete their respective single revolutions in 15(1)/(6) seconds,16(1)/(4) seconds and 18(2)/(3) seconds respectively.They will be again together at the common starting point after an hour and (a) 10 seconds (b) 20 seconds (c) 30seconds (d) 40 seconds

Describe the principle behind each of the following processes : (i) Vapour phase refining of a metal. (ii) Electrolytic refining of a metal. (iii) Recovery of silver after silver ore was leached with NaCN.