Dr. Aloysius found four homogeneous mixtures, but he thinks that only three are alloys. He tests each one and determines their e
2 answers:
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- side of cube=4cm
Area=side^2=4^2=16cm^2=0.0016m^2
- Force=144N
Answer:
Explanation:
The impulse-momentum theorem states the impulse on an object is equal to the change in momentum of that object. Momentum is given by . Since mass is constant, the train's change in momentum is:
(two significant figures).
Impulse is also given as , where
is the average force applied and
is change in time. Since
is given as
, we have the following equation:
(two significant figures).