- A preliminary stage of a spacecraft was to place it in a parking orbit 190km above the
Earth's surface. Determine:
(a) the gravitational intensity at this height;
(b) the speed of the spacecraft, and;
(c) the time to complete one orbit.

When someone slams her books on a table the kinect energy is transferred into vibrations that travel to your ears as sound waves which statement describes the movement of those waves

Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?