Common forces that are often unbalanced includethe force of gravity and applied forces. When these forces are unbalanced, objects accelerate, change their position and find new configurations for which all forces are again balanced. The weight of an object is the force exerted by gravity on that...
A GLASS ACT!; or How to Get the Hang of Specific GravityNo, you're not plastered. Those really are pints of beer and they ARE sticking to the wall. Honest.Beattie, Jilly
Drag has a direct effect on acceleration. The acceleration (a) of an object is its weight (W) minus drag (D) divided by its mass (m). Remember, weight is an object's mass times the force of gravity acting on it. Your weight would change on the moon because of lesser gravity, but...
they're a handy way to measure not just changes in rocket speed but also apogee (when a craft is at its maximum distance from Earth or another mass, so its acceleration due to gravity is at a minimum) and orientation (because tilting something changes the way gravity acts on it and the...
teachers instructions. At home at school when you cant run out to the toilet, or squat under the corner, it is best to hide in a narrow space, the most triangular area. Remember, wherever you run, keep your hands on your head, the latter using other soft objects to protect your head...
Once aloft, gravity (the weight of the hang glider and pilot) pulls the glider back toward Earth and propels the glider forward, continually causing air to flow over the wing. In addition to the horizontal movement of air, hang gliders can get lift from rising currents of air, such as ...
Your eyes can see which way is up and down inside the shuttle. However, because your vestibular system relies on the downward pull of gravity to tell you which way is up (and in which direction you are moving), it does not function in microgravity. So your eyes may tell your brain tha...
on it. If you place a baseball on the same sheet, it will roll towards the bowling ball. This is a simple design, and space doesn't act like a two-dimension bed sheet, but it can be applied to something like our solar system -- more massive objects like oursuncan warp space and ...
A skydiver exiting an aircraft will instantly experience the pull ofgravity-- the force of weight. If he or she is wearing a wingsuit, then the suit's airfoil will provide lift. However, the airfoil isn't large enough to accumulate enough lift to push the flyer's weight upward through ...
The other force is gravity, the pull one object exerts on another. If the gravity within the universe is strong enough, it could reign in the expansion and cause the universe to contract. If not, the universe will continue to expand forever. Although astronomers know the universe is ...