Introduction to SAT II Physics
.What is the direction of the angular velocity vector for the second hand of a clock going from 0 to 30 seconds? (A)Outward fro ...
.What is the angular acceleration of a 0.1 kg record with a radius of 0.1 m to which a torque of 0.05 N Â· m is applied? The mo ...
D An object that experiences 120 revolutions per minute experiences 2 revolutions per second; in other words, it rotates with ...
The torque acting on the pendulum is the product of the force acting perpendicular to the radius of the pendulum and the radius, ...
At the top of the incline, the disk has no kinetic energy, and a gravitational potential energy of mgh. At the bottom of the inc ...
Circular Motion and Gravitation NEWTON’S FIRST LAW TELLS US THAT objects will move in a straight line at a constant speed unless ...
from a Latin word meaning “center-seeking.” We define the centripetal acceleration of a body moving in a circle as: where v is t ...
Objects Released from Circular Motion One concept that is tested frequently on SAT II Physics is the trajectory of a circling bo ...
Newton’s Law of Universal Gravitation Newton’s Law of Universal Gravitation is a fundamental physical law. We experience its eff ...
could be described by universal, scientific laws. But this is knowledge for another course. If you are interested in learning mo ...
when you are beneath the surface of the Earth. Burrow halfway to the center of the Earth and the acceleration due to gravity wil ...
The centripetal force acting on the satellite is the gravitational force of the Earth. Equating the formulas for gravitational f ...
EXAMPLE A satellite of mass is launched from the surface of the Earth into an orbit of radius , where is the radius of the Earth ...
SAT II Physics from testing you on it. There is a popular misconception that astronauts in satellites experience weightlessness ...
Kepler’s Laws After poring over the astronomical observations of his mentor Tycho Brahe (1546–1601), Johannes Kepler (1571–1630) ...
Every 76 years, Halley’s comet passes quite close by the Earth. At the most distant point in its orbit, it is much farther from ...
Practice Questions Que st io ns 1 –3 re fe r t o a b al l o f mass m o n a st rin g o f le n gt h R, swi ng i ng arou nd i n cir ...
.A car wheel drives over a pebble, which then sticks to the wheel momentarily as the wheel displaces it. What is the direction ...
.A satellite orbits the Earth at a radius r and a velocity v. If the radius of its orbit is doubled, what is its velocity? (A)v ...
C The formula for centripetal acceleration is ac = v^2 /r. As you can see, mass has no influence on centripetal acceleration. ...
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