Topic
Q:
2. Considerar que la trayectoria de Mercurio, Venus y Júpiter es circular,
calcular la rapidez média del móvimiento de los planetas en mención e
indicar cuál de ellos gira con mayor velocidad.
3. Suponiendo que la tierra tiene una segunda luna (L 2) de igual masa
que la luna real y cuya orbita tiene un radio igual a la 5 parte del radio
de la luna real. Si la luna real tiene un periodo de 28 días y las lunas no
interactúan entre si, hallar el periodo de la luna 2
Q:
2. Electrostatic painting works because
(a) the paint and the object to be painted have
opposite charges
(b) the paint is difficult to charge, while the
object to be painted is not
(c) the paint is easily charged, while the object
to be painted is not
(d) none of the above (11.1)
Q:
2. Electrostatic painting works because
(a) the paint and the object to be painted have
opposite charges
(b) the paint is difficult to charge, while the
object to be painted is not
(c) the paint is easily charged, while the object
to be painted is not
(d) none of the above (11.1)
3. Conductors of electricity
Q:
1. The law of electric charges describes how
(a) like charges attract each other
(b) unlike charges repel each other
(c) like charges repel each other
(d) some materials are conductors, while others
are insulators (11.1)
Q:
b) From the relation \( \alpha=\beta t+\lambda, a \) and \( \lambda \) are measured in millimetres \( (\mathrm{mm}) \) and \( t \) is
measured in milliseconds ( ms ). Determine the units for \( \beta \).
Q:
Luke and Inga are riding the Prince Charming Carousel at Disney World. Luke is on a horse 7 feet from the
center. Inga is on a horse 15 feet from the center. Prince Charming has the carousel spinning at 40
revolutions per minute.
What is Luke's linear speed (in feet per second)
What is Inga's linear speed (in feet per second)
Q:
\begin{tabular}{l} uah benda 10 kg berada pada ketinggian 17 m . Percepatan gravitasi di tempat it \\ ah \( 10 \mathrm{~m} / \mathrm{s}^{2} \). Energi potensial benda tersebut adalah .... \\ 17 joule \\ \hline 7,0 joule \\ \hline 70,0 joule \\ \hline 700,0 joule \end{tabular}
Q:
\begin{tabular}{l} uah gaya 60 N bekerja pada sebuah lemari. Gaya tersebut mengakibatkan lemari \\ geser sejauh 5 m . Besar usaha adalah .... \\ \hline 0 joule \\ \hline 20 joule \\ \hline 80 joule \\ \hline 00 joule \end{tabular}
Q:
vector
Un vector tiene una magnitud de 10 N y forma un
ángulo de \( 30^{\circ} \) con el eje \( x \). Encuentra sus
componentes \( V_{x} \) y \( V_{y} \).
Q:
\begin{tabular}{l} Sebuah peluru bermassa \( 0,06 \mathrm{~kg} \) ditembakkan dengan kelajuan \( 30 \mathrm{~m} / \mathrm{s} \). Energi kinetik \\ peluru adalah.... \\ A. 27 joule \\ \hline\end{tabular}
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