4.3. Con el pleno ojo, se pueden ver estrellas hasta un millón de veces más débil que el brillo del planeta Júpiter. Un día, poderosos extraterrestres llegan a nuestro sistema
solar para llevarse a Júpiter. Si actualmente, Júpiter se encuentra a una distancia de 5
AU* del sol, a que distancia se encontrará (arrastrado por los extraterrestres) cuando
tengamos nuestro último visto al planeta.
* 1 AU es la distancia entre la tierra y el sol.
5000 AU
5,000,000 AU
1000 AU
10 AU

Part f - example: finding two forces (part i) two dimensional dynamics often involves solving for two unknown quantities in two separate equations describing the total force. the block in (figure 1) has a mass m=10kg and is being pulled by a force f on a table with coefficient of static friction îľs=0.3. four forces act on it: the applied force f (directed î¸=30â above the horizontal). the force of gravity fg=mg (directly down, where g=9.8m/s2). the normal force n (directly up). the force of static friction fs (directly left, opposing any potential motion). if we want to find the size of the force necessary to just barely overcome static friction (in which case fs=îľsn), we use the condition that the sum of the forces in both directions must be 0. using some basic trigonometry, we can write this condition out for the forces in both the horizontal and vertical directions, respectively, as: fcosî¸â’îľsn=0 fsinî¸+nâ’mg=0 in order to find the magnitude of force f, we have to solve a system of two equations with both f and the normal force n unknown. use the methods we have learned to find an expression for f in terms of m, g, î¸, and îľs (no n).

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?