A movie theater is 3 blocks due north of a supermarket, and a beauty parlor is 4 blocks due east of the movie theate. How many blockes long is the steet that runs directly from the supermarket to the beauty parlor?

A man travels 4 km due north, then travels 6 km due east and further travels 4 km due north. How far he is from the starting point ?

A man travels 4 km due North, then travels 6 km due East and further travels 4 km due North. How far he is from the starting point?

A movie theatre has 3 entrances and 4 exists. In how many ways can a man enter and exit from the theatre?

A movie theatre has 3 entrances and 4 exists. In how many ways can a man enter and exit from the theatre?

A small airplane leaves an airport on an overcast day and is later sighted 215km away, in a direction making an angle of 22 ^(@) east of due north. This means that the direction is not due north (directly toward the north) but is rotated 22^(@) toward the east from due north. How far east and north is the airplane from the airport when sighted ?

A bus travels 6 km towards north at an angle of 45^(@) to the east and then travels 4 km towards north at an angle of 135^(@) to the east . How for is its final position , due east and due north ? How far is the point from the starting point ? What angle does the straight line joining its initial and final position makes with the east ?

small block of mass 200 g is kept at the top of a frictionless incline which is 10 m long and 3.2 m high. How much work was required a. to lift the block from the ground nd put it at the top b. to side the block up the incline? What will be the speed of the block when it reaches the ground if, c. it falls off the incline and drops vertically on the ground d. it slides down the incline? Take g=10 m/s^2 .

small block of mass 200 g is kept at the top of a frictioinless incline which is 10 m long and 3.2 m high. How much work was required a. to lift the block from the ground nd put it at thetop b. to side the block up the incline? What will be the speed of the block when it reaches the ground if, c. it falls off the incline and drops vertically on the ground d. it slides down the incline? Take g=10 m/s^2 .

A rectangular glass block of thickness 10 cm and refractive index 1.5 placed over a small coin. A beaker is filled with water of refractive index 4//3 to a height of 10 cm and is placed over the glass block. (a) Find the apparent position of the object when it is viewed at near normal incidence. (b) if the eye is slowly moves away from the normal at a certain position, the object is found to disappear, due to total internal reflection. At what surface does this happen and why ?