Answer:
1. the principle of original horizontality
2. the principle of crosscutting relationships
3. the law of superposition
4. older
5. younger
Answer:
1992
Explanation:
Badminton made its debut as a demonstration sport at the 1972 Olympic Games in Munich. It was not until the 1992 Games in Barcelona that it was officially included on the Olympic programme, with men's and women's singles and doubles events.
Answer:
Part a)
![KE = 77.95 J](https://tex.z-dn.net/?f=KE%20%3D%2077.95%20J)
Part b)
![L = 3.16 m](https://tex.z-dn.net/?f=L%20%3D%203.16%20m)
Part c)
distance L is independent of the mass of the sphere
Explanation:
Part a)
As we know that rotational kinetic energy of the sphere is given as
![KE = \frac{1}{2}I\omega_2 + \frac{1}{2}mv^2](https://tex.z-dn.net/?f=KE%20%3D%20%5Cfrac%7B1%7D%7B2%7DI%5Comega_2%20%2B%20%5Cfrac%7B1%7D%7B2%7Dmv%5E2)
so we will have
![KE = \frac{1}{2}(\frac{2}{5}mR^2)(\frac{v}{R})^2 + \frac{1}{2}mv^2](https://tex.z-dn.net/?f=KE%20%3D%20%5Cfrac%7B1%7D%7B2%7D%28%5Cfrac%7B2%7D%7B5%7DmR%5E2%29%28%5Cfrac%7Bv%7D%7BR%7D%29%5E2%20%2B%20%5Cfrac%7B1%7D%7B2%7Dmv%5E2)
so we will have
![KE = \frac{1}{5} mv^2 + \frac{1}{2}mv^2](https://tex.z-dn.net/?f=KE%20%3D%20%5Cfrac%7B1%7D%7B5%7D%20mv%5E2%20%2B%20%5Cfrac%7B1%7D%7B2%7Dmv%5E2)
![KE = \frac{7}{10} mv^2](https://tex.z-dn.net/?f=KE%20%3D%20%5Cfrac%7B7%7D%7B10%7D%20mv%5E2)
![KE = \frac{7}{10}(\frac{42}{9.81})(5.10^2)](https://tex.z-dn.net/?f=KE%20%3D%20%5Cfrac%7B7%7D%7B10%7D%28%5Cfrac%7B42%7D%7B9.81%7D%29%285.10%5E2%29)
![KE = 77.95 J](https://tex.z-dn.net/?f=KE%20%3D%2077.95%20J)
Part b)
By mechanical energy conservation law we know that
Work done against gravity = initial kinetic energy of the sphere
So we will have
![mgLsin\theta = KE](https://tex.z-dn.net/?f=mgLsin%5Ctheta%20%3D%20KE)
![\frac{42}{9.81}(9.81)L sin36 = 77.95](https://tex.z-dn.net/?f=%5Cfrac%7B42%7D%7B9.81%7D%289.81%29L%20sin36%20%3D%2077.95)
![L = 3.16 m](https://tex.z-dn.net/?f=L%20%3D%203.16%20m)
Part c)
by equation of energy conservation we know that
![\frac{7}{10}mv^2 = mgL sin\theta](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B10%7Dmv%5E2%20%3D%20mgL%20sin%5Ctheta)
so here we can see that distance L is independent of the mass of the sphere
Answer:
Option B. 3.0×10¯¹¹ F.
Explanation:
The following data were obtained from the question:
Potential difference (V) = 100 V.
Charge (Q) = 3.0×10¯⁹ C.
Capacitance (C) =..?
The capacitance, C of a capacitor is simply defined as the ratio of charge, Q on either plates to the potential difference, V between them. Mathematically, it is expressed as:
Capacitance (C) = Charge (Q) / Potential difference (V)
C = Q/V
With the above formula, we can obtain the capacitance of the parallel plate capacitor as follow:
Potential difference (V) = 100 V.
Charge (Q) = 3.0×10¯⁹ C.
Capacitance (C) =..?
C = Q/V
C = 3.0×10¯⁹ / 100
C = 3.0×10¯¹¹ F.
Therefore, the capacitance of the parallel plate capacitor is 3.0×10¯¹¹ F.
Answer:
Depends on which hemisphere you are belong to and how much distance you are away from Ecuador.
Explanation:
Minutes of daylight is equal on everywhere only on the equinox days (21 March and 23 September). On other days it depends on the place that you are belong to. On winter solstice, places on Ecuador have 12 hours daylight. North side of Ecuador have less, south side of Ecuador have more hour of daylight.