In order to waken a sleeping child, the volume on an alarm clock is doubled. Under this new scenario, how much more energy will
1 answer:
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The kinetic energy of an object is given by
where m is the mass of the object and v its velocity.
For the car in the problem,
and 
, so the kinetic energy of the car is
and as we can see, yes, the answer depends on the car's mass.
where m is the mass of the object and v its velocity.
For the car in the problem,
and as we can see, yes, the answer depends on the car's mass.
Answer:
Explanation:
As we know that 1 lb fat can be used to expend 4.1 k Calorie of energy
so here we know that we have to use 7.56 lb of body fat
so here the total energy that is to be utilized is given as
so we will have
now we know that runner expends the energy at rate of 1850 kJ/h
so we have
so it is
now we know that time to burn this energy is given as