It occurs very often to be more specific daily
Answer:
Los primeros gimnasios registrados datan de hace más de 3000 años en la antigua Persia, donde se los conocía como zurkhaneh, áreas que fomentaban la aptitud física.
Answer:
In series
Explanation:
In such experiment, the ammeter is connected in series with the heater, in order to measure the circulating current.
By the way, ammeters are always connected in series in circuits to measure the running current in it.
The correct answer is 78.4 N
The coefficient of friction is the measure of the amount of friction that exists between any two bodies.
Here, we are given,
Force = 196 N
Coefficient of Kinetic friction μ(k)= 0.4
Kinetic friction is directly proportional to the magnitude of force of friction and thus can be calculated as -
= μ x N
= 0.4 x 196
= 78.4 N
Therefore, the magnitude of force of friction on normal force of 196 N and coefficient of kinetic friction 0.4 is 78.4 N.
To learn more about friction, refer: brainly.com/question/13000653
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Answer:
Power = 2.45Kw or 2450 Watts.
Explanation:
<u>Given the following data;</u>
Mass, m = 250kg
Height, h = 2m
Time, t = 2secs
We know that acceleration due to gravity, g is equal to 9.8m/s²
Power can be defined as the energy required to do work per unit time.
Mathematically, it is given by the formula;
But Energy = mgh
Substituting into the equation, we have
Power = 2450 Watts
To convert to kilowatt (Kw), we would divide by 1000
Power = 2450/1000
Power = 2.45Kw.
Therefore, the average power output of the weightlifter is 2.45 Kilowatts.