Difficult to tackle a heavier player travelling at the same speed?
because their body mass.
is
mere
the stick. in terms of kinetic energy and work
b) a hockey player traps a fast ball with deft use of the stick. in terms of ki
done, why is it more difficult to stop a faster ball that is otherwise identical
because the veloci
c) a car of mass 800 kg is travelling at 30 m/s (almost im
elling at 30 m/s (almost 70 mph). the car then brakes suddenly
and stops with a braking distance of 75 m. find:
i) the initial kinetic energy of the car 360oo gu bolo 360o
ii) the final kinetic energy of the car 300oooj
iii) the change in kinetic energy of the car 330,00oj
iv) the work done on the car by the brakes
v) the braking force on the car.

Stars are born within the clouds of dust and scattered throughout most galaxies. a familiar example of such as a dust cloud is the orion nebula. turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. as the cloud collapses, the material at the center begins to heat up. known as a protostar, it is this hot core at the heart of the collapsing cloud that will one day become a star. three-dimensional computer models of star formation predict that the spinning clouds of collapsing gas and dust may break up into two or three blobs; this would explain why the majority the stars in the milky way are paired or in groups of multiple stars.therefor, i would say the answer is: dust and gases contract.i hope this ! < 3