Its B , the definition of cardiovascular endurance is <span>the ability of the heart, lungs and blood vessels to deliver oxygen to your body tissues.</span>
Answer:
90degrees I'm pretty sure
To solve this problem it is necessary to apply the concepts related to work and power.
Remember that work is defined as the force applied on a body - or exerted by it - to travel a certain distance, and that the power is that energy mentioned to perform that activity in a given instance of time.
Mathematically work is defined as
Where
d = Distance
At this case the acceleration is the same that gravitational acceleration
At the same time we have that power is defined as
Replacing our values we have that the Work done was
Now substituting this value at the Power equation we have
Therefore the power that she is supplying is 100W.
Answer:
Explanation:
As we know that system of two gliders are moving on frictionless track
so momentum conservation is applied on it
So we will have
so we will have
now we know that collision is elastic so we have
so by solving above equations we have
Answer:
The kinetic energy of the arrow after release is 89.056 J.
Explanation:
Given that,
Mass of arrow, m = 23 g = 0.023 kg
Velocity of the arrow, v = 88 m/s
The power stroke of the bow is 57 cm. The peak draw weight of the bow is 312 N. We need to find the kinetic energy does the arrow have after release. So, it is given by :
So, the kinetic energy of the arrow after release is 89.056 J. Hence, this is the required solution.