A bomb is dropped from an aeroplane when it is at a heigth h directly abovve a target .If the aeroplane is moving horizontally at a spee u,the distance by which the bomb will mis the target is given by:

A bomb is dropped from an aircraft when it is directly above a target at a height of 1000 km. The aircraft is moving with a velocity of 500 km/hr. Will the bomb hit the target? If not, by how much distance will the bomb miss the target?

Two aeroplanes I and II bomb a target in succession. The probabilities of I and II scoring a hit correctly are 0.3 and 0.2, respectively. The second plane will bomb only if the first misses the target. The probability that the target is hit by the second plane is (A) 0.06 (B) 0.14 (C) 7/22 (D) 0.7

A bullet of mass m fired at 30^@ to the horizontal leaves the barrel of the gun with a velocity v. The bullet hits a soft target at a height h above the ground while it is moving downward and emerges out with half the kinetic energy it had before hitting the targtet. which of the following statements are correct in respect of bullet after it emerges out of the target?

A car A is travelling on a straight level road with a uniform speed of 60 km/h. It is followed by another car B which in moving with a speed of 70 km/h. When the distance between then is 2.5km, the car B is given a deceleration of 20km//h^2 . After how much time will B catch up with A

An aeroplane by the flying horizontally with a speed of 72 km h^(-1) releases a bomb at a height of 1000m. Find the time taken by the bomb to reach the ground.

A fighter plane is flying horizontally at an altitude of 1.5 km with speed 720 km//h.At what angle of sightb (w.r.t.horizontal),when the target is seen,should the pilot drop the bomb in order to attack the target?

An aeroplane is in level flight at 144 km per hour at an altitude of 1000m. How far from a given targets should it release a bomb sa as to hit the target?

Suppose India had a target of producing by 2020 AD, 200,000 MW of electric power, ten percent of which was to be obtained from nuclear power plants. Suppose we are given that, on an average, the efficiency of utilization (i.e. conversion to electric energy) of thermal energy produced in a reactor was 25%. How much amount of fissionable uranium would our country need per year by 2020? Take the heat energy per fission of "^235U to be about 200MeV.

Stearic acid [CH_(3)(CH_(2))_(16)CO_(2)H] is a fatty acid the part of fat that stores most of the energy .1.0 g of Stearic acid was burnt in a bomb calorimeter . The bomb had capacity of 652 J//^(@)C . If the temperature of 500 g water rose from 25.0 to 39.3^(@)C how much heat is released when the stearic acid was burned? ["Given "C_(p)(H_(2)O)=4.18J//g^(@)c]