A person walking at a rate of 3km/hr, the rain falls vertically.when he increases his speed to 6km/hr it appears to meet him at an angle of 30 degrees.What is the speed of rain
The far point of a myopic eye is 60 cm. What is the nature and power of the lens required to correct the problem
Three equal charges which have a magnitude of 2 x 10-6 coulomb is placed at the corners of a right-angled triangle of sides 3, 4, 5 cm. Find the force on the charge at right angle corner.
what is the maximum height for a ball after n collisions if it loses 3/4 of its energy after each collision when dropped from a height h to a floor
A solid ball of radius R has a charge density given by = for 0 ≤ r ≤ R. The electric field outside the ball is :