A body is projected upwards making an
angle with the horizontal with a velocity of 300 ms-1. Find
the value of 0 so that the horizontal range will be maximum.
Hence find its range and time of flight.
[4]
49
Ang. 15

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

Which is an example of an exothermic process?

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?