Speed = (distance covered) / (time to cover the distance)
Speed = (121 m) / (30 sec)
Speed = 4.03 m/s (about 9 mph ... pretty slow for a bobsled)
Answer:
The law of conservation of energy applies to eating your favorite food in that the energy contained in the food is being converted to energy usable for the body system after the final digestion(Glucose or simple sugar, amino acid, etc)
Examples of transformation of energy include
(1) Transformation from Chemical energy in battery to light energy in bulb
(2) Transformation of Electrical energy to thermal/Heat energy in electric stove.
Explanation:
The law of conservation of energy states that energy can neither be created or distroy. It can only by converted from one form to another.
When attempting to increase the distance traveled by a projectile, what must occur
Energy or power has to be increased to increase the distance travelled by the projectile.
Explanation:
Projectile motion is defined as when an object is thrown or projected at a particular angle and it reaches the ground after sometime due to acceleration and gravity.
For example, throwing a ball in air. To increase the distance travelled by the object due to projectile motion, one must increase the power at which the object to set.
To increase the distance of a projectile you must increase the power behind the projectile. However you must also change the angle if you are aiming for a specific point. By increasing the power the momentum transfers to the object and the projectile gains more velocity and more distance. Also remember that energy transfers. For more distance you must have more velocity.
answer: c- interruption of water flow