An automobile overturns when going too fast around a curve. Which wheels leave the ground first ?

Two balls have the same size but one is denser than the other. Assume the air resistance to be same on each, show that when they are released simultaneously from the same height, the heavier ball will reach the ground first.

What is the maximum velocity with which an automobile can move round a curved track banked at a angle of 30^@ having a radius of 10sqrt3 m(g=10ms^(-2)) ?

Sand is pouring from a pipe at the rate of 12 cm^3// s. The falling sand from a cone on the ground in such a way that the height of the cone is always one-sixth of the radius of the base. How fast is the height of the sand cone increasing when the height is 4 cm.

(i) Write the balanced equations to represent what happens when (a) acidified potassium permanganates reacts with hydrogen sulphide ? (b) acidified potassium dichromate solution reacts with iron (II) solution (ionic equation) ? (ii) The figure given below illustrates the first ionisation enthalpies of first, second and third series of transition elements. (a) Which series amongst the first, second and third series of transition elements have the highest first ionisation enthalpy and Why ? (b) Why there is a fall in IE_(2) from Cr to Mn and from Cu to Zn ? Explain.

Deficiency symptoms of an element tend to appear first in young leaves. It indicates that the element is relatively immobile. Which one of the following elemental deficiency would show such symptoms?

A ladder 5m long is leaning against a wall. The bottom of ladder is pulled along the ground, away from the wall, at the rate of 2cm//sec . How fast is its height on the wall is decreasing when the foot of ladder is 4m away from the wall.

Fleshy buds produced in the axil of leaves, which grow to form new plants when shed and fall on ground, are called

The first process by which water enters into the seed coat when a seed is placed in suitable environment for germination is:

For the curve y=5x- 2x^3 , if x increase at the rate of 2 units // s, then how fast is the slope of curve changing when X =3?