The brass pendulum of a particular grandfather clock has a mass of 2 kilograms and completes its swing once every 2 seconds.
if you were to replace the brass pendulum with an identically shaped gold pendulum having a mass of 4 kilograms, it would complete its swing once every
in this question we have given
mass of cart=5kg
change in speed,
we have to find, impulse, i=?
impulse of a body is equla to its change in momentum.
impulse of cart is equal to its change in momentum:
, and m in eq(1)
therefore, the impulse of the cart,
from all the choices available in that question, it's closest in size to the dot over the ' i ' in the words "radius", "is" and "in".
your answer is going to be
c ) eastern and western traditions
have a goed day
(b) the world around you.
science is an endeavor that does just that: asks questions about the world around us, and attempts to answer them, too. the questions it asks, when formulated precisely, are referred to as hypotheses (so the answer d is incorrect here). scientists develop theories and observe natural laws (covered by choice c), design experiments and evaluate test results (choice a). but in the end, it is all about asking scientific questions about the world around you. the choice (b) is the best answer.