Abird flies overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle theta with respect to the ground. the radius vector to the bird and its momentum vector lie in the xy-plane. what is the bird’s angular momentum about the point where you are standing?

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )

the closer the planet is to the sun, the larger the gravity