Answer:
Her speed is 9.8 meter per second
Explanation:
Newton's second law states that acceleration (a) is related with force (F) by:
(1)
Here the only force acting on the firefighter is the weight F=mg so (1) is:
Solving for a:

Now with the acceleration we can use the Galileo's kinematic equation:
(2)
With Vf the final velocity, Vo the initial velocity and Δx the displacement, because the firefighter stars from rest Vo=0 so (2) is:

Solving for Vf


Answer:
True
Explanation:
When an object is held higher, it has more potential energy because more energy is stored from its higher position to swing further than it would have, had it been held lower.
Planet Geos in orbit a distance of 1 A.U. (astronomical unit) from the star Astra has an orbital period of 1 "year." If planet Logos is 4 A.U. from Astra, how long does Logos require for a complete orbit?
TB = <span>8</span> years
Answer:
I think the answer might be A
Explanation:
because if its called Pillars creation then something important might be being born maybe
Answer:
Power = 1625 Watts
Explanation:
Given the following data;
Energy = 65,000 J
Time = 40secs
To find the power;
Power can be defined as the energy required to do work per unit time.
Mathematically, it is given by the formula;
Substituting into the equation, we have
Power = 65,000/40
Power = 1625 Watts