A child throws a ball so as to clear a wall of heigh than data distance x from it. Find the minimum speed required for clearing the wall.

A source emitting sound of frequency 180 Hz is placed in front of a wall at a distance of 2 m from it. A detector is also placed in front of the wall at the same distance from it. Find the minimum distance between the source and the detector for which the detector detects a maximum of sound. Speed of sound in air =360ms^-1 .

A source emitting sound of frequency 180 Hz is placed in front of a wall at a distance of 2 m from it. A detector is also placed in front of the wall at the same distance from it. Find the minimum distance between the source and the detector for which the detector detects a maximum of sound. Speed of sound in air =360ms^-1 .

A ball is thrown from ground level so as to just clear a wall 4 m high at a distance of 4 m and fall at a distance of 14 m from the wall. Find the magnitude and direction of the velocity of the ball.

A ball is thrown from ground level so as to just clear a wall 4 m high at a distance of 4 m and fall at a distance of 14 m from the wall. Find the magnitude and direction of the velocity of the ball.

A ball is thrown from ground level so as to just clear a wall 4m high at a distance of 4 m and falls at a distance of 14 m from the wall. Find the magnitude and direction of the initial velocity.

A soure of sound of frequency 165 hz is placed in front of a wall at a distance 2 m from it. A dtector is also placed in front of the wall at the same distance from it. Find the minimum distance between the source and detector for which maximum sound is recorded int he detector . the speed of sound is 330 m/s

A soure of sound of frequency 165 hz is placed in front of a wall at a distance 2 m from it. A dtector is also placed in front of the wall at the same distance from it. Find the minimum distance between the source and detector for which maximum sound is recorded int he detector . the speed of sound is 330 m/s