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.
speed of sound wave depends on elasticity of medium and density of medium
it is given by formula

now if wave travel through solid then its speed is maximum while if it travel from gas then its speed is minimum
so initially its speed is given as 4000 m/s and suddenly decrease to 1500 m/s
so here we can say that its medium will change from solid to liquid
<em>so sound will encounter with water </em>
Answer:
Focal length, f = 0.43 meters
Explanation:
It is given that,
Power of the reading glasses, P = 2.3 D
We need to calculate the focal length of the reading glasses. The relationship between the power and the focal length inverse i.e.



f = 0.43 m
So, the focal length of the reading glasses found on the rack in a drugstore is 0.43 meters.
An artesian well is a well
drilled into an artesian aquifer. An artesian aquifer is a small
aquifer which contains groundwater under positive pressure. Since the water is
under positive pressure, this forces the water level in the well to rise above
the water surface up to a point where hydrostatic equilibrium is reached. This
results in the formations of “Springs”.
Answer: Spring
Its momentum doubles as well. Considering momentum equals M•V. Regardless of velocity (except if it’s not moving, in that case it doesn’t have any momentum) it will be double.