Wednesday
July 30, 2014

Homework Help: physics

Posted by Marcus on Wednesday, November 28, 2012 at 12:01am.

A weightlifter has a basal metabolic rate
of 80.0 W. As he is working out, his metabolic rate
increases by about 650 W. (a) How many hours does
it take him to work off a 450-Calorie bagel if he stays
in bed all day? (b) How long does it take him if hes
working out? (c) Calculate the amount of mechanical
work necessary to lift a 120-kg barbell 2.00 m. (d) He
drops the barbell to the floor and lifts it repeatedly.
How many times per minute must he repeat this process
to do an amount of mechanical work equivalent to
his metabolic rate increase of 650 W during exercise?
(e) Could he actually do repetitions at the rate found
in part (d) at the given metabolic level? Explain.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

college physics - A weightlifter has a basal metabolic rate of 92.4 W. As he is ...
Health - I posted this question yesterday and I got confused. The determinant of...
Calculus - According to Kleiber's Law, the metabolic rate P (in kilocalories per...
Calculus - According to Kleiber's Law, the metabolic rate P (in kilocalories per...
physics ** - When people sleep, their metabolic rate is about 2.6 10-4 C/(skg...
Health - Can you help me with this question? The determinant of total energy ...
physics - When people sleep, their metabolic rate is about 2.6*10^4 C/(s-kg). ...
Physics - A person sitting quietly in a room on a winter day may lose heat ...
physics - A person's metabolic processes can usually operate at power of 6W/kg ...
physics - The basal metabolic rate is the rate at which energy is produced in ...

Search
Members