A ball of snow when rolled over snow increases in mass, volume and size. Is this comparable to growth as seen in living organisms? Why?

Read the paragraph and answer the following questions: I am a penguin.I live in polar region covered by snow. My abdomen is white. My skin is thick with a layer of fat underneath. My body is spindle shaped. My wings are small. My toes are webbed. We live in flocks. Which adoptions should you have to enable you to live permanently in the polar region? why?

A heavy ball of mass M is suspended from the ceiling of a car by a light string of mass m (m< < M) . When the car is at rest, the speed of transverse waves in the string is 60 ms^(-1) . When the car has acceleration a, the wave-speed increases to 60.5 ms^(-1) . The value of a, in terms of gravitational acceleration g, is closest to

A point particle of mass m, moves long the uniformly rough track PQR as shown in figure. The coefficient of friction, between the particle and the rough track equals mu . The particle is released, from rest from the point P and it comes to rest at a point R. The energies, lost by the ball, over the parts, PQ and QR, of the track, are equal to each other, and no energy is lost when particle changes direction from PQ to QR. The value of the coefficient of friction mu and the distance x (=QR) , are, respectively close to:

If the volume of spherical ball is increasing at the rate of 4pi" cc/s" , then the rate of change of its surface area when the volume is 288 pi cc is

The volume of the spherical ball is increasing at the rate of 4 pi cc/sec. Find the rate at which the radius and the surface area are changing when the volume is 288 pi cc?

Questions based on paragraph Study the following activity and answer the questions. Take two aluminium channels of different lengths. Place the lower ends of the channels on the floor and hold their upper ends at the same height. Now take two balls of the same size and weight and release them from the top end of the channels. They will roll down and cover the same distance. Why do the balls cover the same distance on rolling down?

Read the paragraph and answer the following questions: I am a penguin.I live in polar region covered by snow. My abdomen is white. My skin is thick with a layer of fat underneath. My body is spindle shaped. My wings are small. My toes are webbed. We live in flocks. Why do we live in flocks sticking close to each other?

Read the paragraph and answer the following questions: I am a penguin. l Iive in polar region covered by snow. My abdomen is white. My skin is thick with a layer of fat underneath. My body is spindle shaped. My wings are small. My toes are webbed. We live in flocks. Why is my skin white and thick and why is there a thick layer of fat underneath?

Read the paragraph and answer the following questions: I am a penguin.I live in polar region covered by snow. My abdomen is white. My skin is thick with a layer of fat underneath. My body is spindle shaped. My wings are small. My toes are webbed. We live in flocks. Which geographical region do i inhabit? Why?