Answer:
The angle formed between the line of pull of a muscle and the longitudinal axis of the bone in which the muscle is acting. The line of pull is usually indicated by the joint angle. It affects the strength of muscle action; at only certain angles of pull can a muscle exert maximal tension.
Explanation:
hope this helps sorry if it doesn't have a good rest of your night :) ❤
Cartography (the making of maps and charts) is a science because it is a body of knowledge which can be used, built on, and can produce testable hypotheses.
The cartography of India begins with early charts for navigation and constructional plans for buildings. Indian traditions influenced Tibetan and Islamic traditions, and in turn, were influenced by the British cartographers who solidified modern concepts into India's map making
Answer:
θ = 25.4º
Explanation:
For this exercise we can use the projectile launch equations, let's use the scope ratio
R = vo² sin 2θ / g
For the first ball
R1 = 35² 2 sin (2 30) /9.8
R1 = 108.25 m
For the second ball, they ask that the second ball fall in the same place, so the horizontal distance is the same
R2 = R1
Therefore we calculate the angle
sin 2θ = R1 g / vo²
sin 2θ = 108.25 9.8 / 37²
sin 2θ = 0.7749
2θ = sin⁻¹ (0.7749)
2θ = 50.8º
θ = 25.4º
A) Agreed.
<span>b) Value agreed but units should be W (watts). </span>
<span>c) Here's one method... </span>
<span>15 miles = 24140 m </span>
<span>1 gallon of gasoline contains 1.4×10⁸ J. </span>
<span>So moving a distance of 24140m requires gasoline containing 1.4×10⁸ J </span>
<span>Therefore moving a distance of 1m requires gasoline containing 1.4×10⁸/24140 = 5800 J </span>
<span>Overcoming rolling resitance for 1m requires (useful) work = force x distance = 1000x1 = 1000J </span>
<span>So 5800J (in the gasoline) provides 1000J (overcoming rolling resistance) of useful work for each metre moved. </span>
<span>Efficiency = useful work/total energy supplied </span>
<span>= 1000/5800 </span>
<span>= 0.17 (=17%) </span>