Answer:
Step-by-step explanation:
Power is defined by work over time. In physics, work can be defined as the energy transferred over from an applied force over some distance. As a formula:
, where F = force applied and d = distance that force is applied over.
*It is worth noting that F must be parallel to the distance travelled. If it is perpendicular, no work is done, and if it is at an angle, find the parallel component and use that for F.
In this case, the force applied must counter the force of gravity on Martha, which is given by 
, where m = Martha's mass and g = gravitational constant 9.8 m/s/s. Therefore, 
. Since she raises her body 4.0 meters, the work done must be 
.
Since power is equal to work over time and t = 2.3 seconds, we have:
(to two significant figures)
The cross section will be rectangle. You can make a cylinder out of a dough and try to cut it. You will see the cross section is rectangle.
Answer:
D) y = 3x - 9
Step-by-step explanation:
Answer:
If you look at $10 we are at 10 animals, but if you look at $100, we are at about 55 animals. Divide the two to find your average. That will give you the answer.
Answer:
Step-by-step explanation:
