Answer:
Explanation:
There are four phases of work out that includes Skills, Stamina, Strength and power.
While performing phase 4 workout which is Power, resistance plays an important role. At this time one needs to push themselves harder and instead of long workout, you should go harder with short burst at maximum power.
8-12 repetitions of resistance training exercises for each group of muscle and an intensity of 40 % to 80% of single repetition is required and should be performed while doing phase 4 workout.
Answer:
11760 joules
Explanation:
Given
Mass (m) = 75kg
Height (h) = 16m
Required
Determine the increment in potential energy (PE)
This is calculated as thus:
PE = mgh
Where g = 9.8m/s²
Substitute values for m, g and h.
P.E = 75 * 9.8 * 16
P.E = 11760 joules
a) Speed of the Moon: 1025 m/s
The speed of the moon is equal to the ratio between the circumference of its orbit and the orbital period:
where
is the radius of the orbit of the Moon
is the orbital period
Substituting into the formula, we find
b) Centripetal force:
The centripetal force acting on the Moon is given by:
where
is the mass of the Moon
is its orbital speed
is the radius of the orbit
Substituting into the formula, we find
c) Gravitational force
The only relevant force that acts on the Moon, and that keeps the Moon in circular motion around the Earth, is the gravitational force exerted by the Earth on the Moon. In fact, this force "pulls" the Moon towards the Earth, so towards the centre of the orbit of the Moon, therefore it acts as source of centripetal force for the Moon.
Answer: set of rules based on standards and guidelines.
Maybe this can help:
https://blogs.bu.edu/ggarber/interlace/pendulum/energy-in-a-pendulum/