Muscular strength is a measure of how much force you can exert in one repetition. Muscular endurance refers to the ability to perform a specific muscular action for a prolonged period of time.
Answer:
40479.6 J
Explanation:
Applying,
q = cm(t₂-t₁).................... Equation 1
Where q = change in heat content of the system, c = specific heat capacity of the system, m = mass of the system, t₁ = initial temperature, t₂ = final temperature.
From the question,
Given: m = 79 g = 0.079 kg, t₁ = 21°C, t₂ = 143°C
Constant: c = 4200 J/kg.°C
Substitute these values into equation 1
q = 4200(0.079)(143-21)
q = 331.8(122)
q = 40479.6 J
Answer:
<h2> 15.18m</h2>
Explanation:
Given data
diameter of piston d= 1cm= 1/100= 0.01m
force F= 1040N/m
distance moved =0.4cm=0.4/100= 0.04m
Area of piston = π^2
= 3.142x (0.01)^2
= 3.142x 0.0001
=0.0003142
=3.142*10-4m^2
Hence to move 0.04m force required
force= pressure * distance
force= 1040* 0.045= 46.8 N
Pressure required = Force / area = 46.8 / 3.142*10-4 = 148949.7 N/ m^2
1000 x 9.81 x h = 148949.7
h =148949.7/9810
h= 15.18m ans