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GarryVolchara [31]
3 years ago
10

What is the best description of isokinetic exercise? applying force with movement applying force at a constant speed applying fo

rce without movement applying force while lengthening a muscle?
Physics
1 answer:
galina1969 [7]3 years ago
3 0
Applying force with movement :)
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A substance is soluble in water. It is added into the water and dissolves. More solute continues being added until it reaches a
Sophie [7]

Answer:

option D

Explanation:

also to add.... there exists a solubility equilibrium between solid solute and the solution.

4 0
3 years ago
Which of the following statements is correct regarding the polarization of a neuronal membrane and the formation of a resting me
natka813 [3]
It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer. The statement that is correct regarding the polarization of a neuronal membrane and the formation of a resting membrane potential is this: <span>Sodium/Potassium pumps maintain concentration gradients; sodium and potassium move down their concentration gradients through leakage channels.</span>
3 0
3 years ago
A frictionless spring with a 4-kg mass can be held stretched 0.2 meters beyond its natural length by a force of 30 newtons. If t
maxonik [38]

Answer:

The position for mass is x(t)=36.75sin(37.5t)

Explanation:

Let x(t) donate the position of mass at time t,Then x satisfies the differential equation

m\frac{d^2x}{dt^2} +kx=0\\here\\m=4kg\\k=30N/0.2m\\thus\\w^2=k/m=30N/0.2m*4kg=37.5

The general solution is

(x)t=C_{1}cos(37 .5t)+C_{2}sin(37.5t)

It follows

x'(t)=-37.5C_{1}sin(37.5t)+37.5C_{2}cos(37.5t)\\now\\x(0)=0\\gives\\C_{1}=0\\ and\\x'(0)=1m/s\\gives\\C_{2} =36.75

thus the position of mass is

x(t)=36.75sin(37.5t)

7 0
3 years ago
An airplane flies with a constant speed of 620 miles per hour. how far can it travel in 3 1/2 hours?
ELEN [110]

Answer:

hi there !

1 hour -------> 620 miles

3 1/2 ---------> ?

the number of miles the airplane travels in 3 1/2 hours

= 3 1/2 × 620 = "2170" miles

8 0
3 years ago
Felipe drives his car at a velocity of 28 m/s. He applies the brake, which slows the vehicle down at a rate of 6.4 m/s2 and caus
Dmitry_Shevchenko [17]

Answer: it takes 4.375 s for the car to stop

For this case we have that the final speed is given by:

Where,

a: acceleration

vo: initial speed

t: time

Clearing the time we have:

Substituting values we have:

Answer:

it takes 4.375 s for the car to stop

Explanation:

4 0
4 years ago
Read 2 more answers
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