A block of mass M is placed on a surface of table and is pulled by a force F acting at an angle Φ with horizontal . Find acceleration of block if coefficient of friction between surface and block...
A block of mass M is placed on a surface of table and is pulled by a force F acting at an angle Φ with horizontal . Find acceleration of block if coefficient of friction between surface and block...
A body of mass 2kg is placed on another body of mass 4kg which is on top of a table. coefficient of friction between the body 2kg and 4kg is 0.2 and that of body 4kg and surface of...
what is the center of mass? and coefficients of restitution
What volume of buffer having [HA] = [A-] = 0.1M should be taken so that PH change by 0.48 unit by adding 10ml, 0.01M HCL. Note that HA is just any acid.
In what volume ratio 0.1M HA( acid having ka=2*10E-5) is mixed with 0.2M NaOH to get a buffer of ph=5.
A car moving at 40km/h is to be stopped by applying brakes in the next 4.0 m. if the car weight 2000kg what average force must be applied on it? Ans : Since car moving at speed 40km/h with...
One litre of 0.15M HCL and one litre of 0.3M HCL is given. What is the maximum volume of 0.2M HCL which one can make from these solution. No water is added. Note that M represent Molarity...
y=3sin(2x)
cos(x).cos(2x)cos(4x)cos(8x)= sin16x/16sinx prove this !
sin18° and cos° without using calculator ?
The value of X , if log1/2x >= log1/3x is
Find the value of X for which (x+4)1/2 +2=0
If Vector A = 3icap + 4jcap and B= 7icap + 24jcap the the vector having the same magnitude as B and same direction as A is
The sum , difference and cross product of two vector A and B are mutually perpendicular if A and B are perpendicular to each other and |A| = |B| This...
The distance between the point P(2m, 3m, 4m) and the x- axis is
A stone is projected from level ground with speed u and at an angle x with horizontal. some how the acceleration due to gravity (g) become double immediately after the stone reaches the maximum height...
Greatest value of Sin4Θ + cos4Θ is
Least value of tan2Θ + cot2Θ is
A body is thrown up with a velocity of 100m/s if it travels 5 m in the last seconds of its journey . If the same ball is thrown up with the initial velocity of 200m/s . What distance will it travel...
A lead ball is dropped into a lake from a diving board 5m above the water . It hits the water with a certain velocity and then sink with constant velocity in bottom . It reaches the bottom 5 second...