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Eight identical droplets, each falling under gravity in the earth’s atmosphere with terminal velocity v, combine to form a single drop. The terminal velocity of single drop and drag force on it are calculated. Find the correct statement from the following.
24
Aug
Eight identical droplets, each falling under gravity in the earth’s atmosphere with terminal velocity v, combine to form a single drop. The terminal velocity of single drop and drag force on it are calculated. Find the correct statement from the following. combine to form a single drop. The terminal velocity of single drop and drag [...]
Two equal to masses are connected by a light string passing over a fixed frictionless pully. They are set in motion with uniform speed v. The mass going down is momentarily stopped and then released immediately. Calculate the time that will elapse before the string becomes tight again.
24
Aug
Two equal to masses are connected by a light string passing over a fixed frictionless pully. They are set in motion with uniform speed v. The mass going down is momentarily stopped and then released immediately. Calculate the time that will elapse before the string becomes tight again. A car accelerates from rest at a [...]
A cube of mass m and density D is suspended from a point P by a spring of stiffness k. The system is kept inside a beaker filled with a liquid of density d. The elongation in the spring, assuming D gt d, is :
24
Aug
A cube of mass m and density D is suspended from a point P by a spring of stiffness k. The system is kept inside a beaker filled with a liquid of density d. The elongation in the spring, assuming D gt d, is : A cube of mass m and density D is suspended [...]
Every 10 mintues, two cars start simultaneously from two point AandB which are 60 km apart. The cars travel towards each other at 60 kmph. Find graphiclly how many cars will pass by a passenger in one of the cars between AandB.
24
Aug
Every 10 mintues, two cars start simultaneously from two point AandB which are 60 km apart. The cars travel towards each other at 60 kmph. Find graphiclly how many cars will pass by a passenger in one of the cars between AandB. A car accelerates from rest at a constant rate α for some time [...]
The density of ice is x gm/cc and that of water is y gm/cc. What is the change in volume in cc, when m gm of ice melts?
24
Aug
The density of ice is x gm/cc and that of water is y gm/cc. What is the change in volume in cc, when m gm of ice melts? The density of ice is x gm/cc and that of water is y gm/cc. What is the change in volume in cc when m gm of ice [...]
A body begins to move with an initial velocity of 2ms−1 and continues to move at a constant acceleration a.Ten seconds later a second body begins to move from the same point with an initial velocity of 12ms−1 in the same direction with the same acceleration.What is the maximum acceleration at which it would be possible for the second body to overtake the first ?
24
Aug
A body begins to move with an initial velocity of 2ms−1 and continues to move at a constant acceleration a.Ten seconds later a second body begins to move from the same point with an initial velocity of 12ms−1 in the same direction with the same acceleration.What is the maximum acceleration at which it would be [...]
A light cylindrical vessel is kept on a horizontal surface. Its base area is A. a hole of cross sectional area a is made just at its bottom sdie (where a ltlt A). Find minimum coefficeint of friction necessary for sliding of the vesssel due to the impact force of the emerging liquid.
24
Aug
A light cylindrical vessel is kept on a horizontal surface. Its base area is A. a hole of cross sectional area a is made just at its bottom sdie (where a ltlt A). Find minimum coefficeint of friction necessary for sliding of the vesssel due to the impact force of the emerging liquid. A circular [...]
A pipe of diameter D is connected to a water tank of large cross-sectional area in which water is maintained at a height H as shown in the figure. A nozzle of diameter ‘d’ fitted at the end of the pipe discharges water into the atmosphere. Find the flow rate, given that the density of water is p. Also find pressure at point C. (P_(0) is the atmosoheric pressure)
24
Aug
A pipe of diameter D is connected to a water tank of large cross-sectional area in which water is maintained at a height H as shown in the figure. A nozzle of diameter ‘d’ fitted at the end of the pipe discharges water into the atmosphere. Find the flow rate, given that the density of [...]
A car accelerates from rest at a constant rate α for some time after which it decelerates at a constant rate β to come to rest. If the total time elapsed is t, the maximum velocity acquired by the car is given by
24
Aug
A car accelerates from rest at a constant rate α for some time after which it decelerates at a constant rate β to come to rest. If the total time elapsed is t, the maximum velocity acquired by the car is given by A car accelerates from rest at a constant rate α for some [...]
A bent tube is lowered into a water stream as shown in figure above. The velocity of the stream relative to the tube is equal to v=2.5m/s. The closed upper end of the tube located at the height h 0 =12cm has a small orifice. The height h the water jet spurt?
24
Aug
A bent tube is lowered into a water stream as shown in figure above. The velocity of the stream relative to the tube is equal to v=2.5m/s. The closed upper end of the tube located at the height h 0 =12cm has a small orifice. The height h the water jet spurt? A circular [...]