The force required is
(15 kg) x (the acceleration, in m/s²) newtons.
Answer:


Explanation:
v = Velocity of the elevator = 3.1 m/s
= Angle of the slope = 
Vertical component is given by

The vertical component of the velocity is
.
Horizontal component is given by

The horizontal component of the velocity is
.
Answer:Biology is the study of living organisms. Physics is the study of matter and the laws of nature to understand the behavior of matter and the universe. The Biophysical Society explains that, when scientists combine physics and biology, they learn more about biological systems on a molecular or atomic level.
Explanation:
To solve this problem it is necessary to apply the concepts related to the Period based on the length of its rope and gravity, mathematically it can be expressed as

g = Gravity
L = Length
T = Period
Re-arrange to find the gravity we have

Our values are given as

Replacing we have



Therefore the correct answer is C.
The periodic table can be used to identify an element by looking for the element'satomic number. The atomic number of an element is the number of protonsfound within the atoms of that element. The key of a periodic table will indicate which number represents the atomic number within each elemental square.