Energy
0.025
Joule
=
1.56038e+17
Electronvolt
Formula
for an approximate result, multiply the energy value by 6.242e+18
The correct option is: (C) <span>when one does not have enough resources to satisfy all of one’s wants
Explanation:
Scarcity in Economics is defined as the "unlimited wants and limited resources." If a someone's wants cannot be satisfied because of the limited resources, then it signifies the condition of scarcity. Hence in the options given the only option that satisfies this definition is option C. </span>
Player #2 has the most momentum. Think it as if you are rolling a baseball, bowling ball, and softball down a hill. it will take more effort to stop the bowling ball, because it has more momentum.
Answer:
d=9.45 m
And directed
α=62.7⁰
Explanation:
The Pythagoras Theorem
"The theorem, also known as the Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle"
so for this problem
![d^{2}=b^{2}+c^{2}\\ d=\sqrt{b^{2}+c^{2}}\\ d=\sqrt{(8.4)^{2}+(4.33)^{2} }\\ d=9.45m](https://tex.z-dn.net/?f=d%5E%7B2%7D%3Db%5E%7B2%7D%2Bc%5E%7B2%7D%5C%5C%20%20%20d%3D%5Csqrt%7Bb%5E%7B2%7D%2Bc%5E%7B2%7D%7D%5C%5C%20d%3D%5Csqrt%7B%288.4%29%5E%7B2%7D%2B%284.33%29%5E%7B2%7D%20%20%7D%5C%5C%20d%3D9.45m)
And directed
α=tan⁻(8.4/4.33)
α=62.7⁰
Answer: 0.516 ft/s
Explanation:
Given
Length of ladder L=20 ft
The speed at which the ladder moving away is v=2 ft/s
after 1 sec, the ladder is 5 ft away from the wall
So, the other end of the ladder is at
![\Rightarrow y=\sqrt{20^2-5^2}=19.36\ ft](https://tex.z-dn.net/?f=%5CRightarrow%20y%3D%5Csqrt%7B20%5E2-5%5E2%7D%3D19.36%5C%20ft)
Also, at any instant t
![\Rightarrow l^2=x^2+y^2](https://tex.z-dn.net/?f=%5CRightarrow%20l%5E2%3Dx%5E2%2By%5E2)
differentiate w.r.t.
![\Rightarrow 0=2xv+2yv_y\\\\\Rightarrow v_y=-\dfrac{x}{y}\times v\\\\\Rightarrow v_y=-\dfrac{5}{19.36}\times 2=0.516\ ft/s](https://tex.z-dn.net/?f=%5CRightarrow%200%3D2xv%2B2yv_y%5C%5C%5C%5C%5CRightarrow%20v_y%3D-%5Cdfrac%7Bx%7D%7By%7D%5Ctimes%20v%5C%5C%5C%5C%5CRightarrow%20v_y%3D-%5Cdfrac%7B5%7D%7B19.36%7D%5Ctimes%202%3D0.516%5C%20ft%2Fs)