Answer:
the acceleration due to gravity g at the surface is proportional to the planet radius R (g ∝ R)
Explanation:
according to newton's law of universal gravitation ( we will neglect relativistic effects)
F= G*m*M/d² , G= constant , M= planet mass , m= mass of an object , d=distance between the object and the centre of mass of the planet
if we assume that the planet has a spherical shape, the object mass at the surface is at a distance d=R (radius) from the centre of mass and the planet volume is V=4/3πR³ ,
since M= ρ* V = ρ* 4/3πR³ , ρ= density
F = G*m*M/R² = G*m*ρ* 4/3πR³/R²= G*ρ* 4/3πR
from Newton's second law
F= m*g = G*ρ*m* 4/3πR
thus
g = G*ρ* 4/3π*R = (4/3π*G*ρ)*R
g ∝ R
Answer:
The center of mass of a cone is located along a line. This line is perpendicular to the base and reaches the apex. The center of mass is a distance 3/4 of the height of the cone with respect to the apex.
Explanation:
Answer:
Sunlight allows plants to perform photosynthesis, a process which is required for plant growth and health. ... Plants that are denied sufficient light will eventually lose their color and die. Plants deprived of light will grow upward, stretching their stems more rapidly that usual, searching for light.
Photochemical smog is the chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere, which leaves airborne particles and ground-level ozone. This noxious mixture of air pollutants may include the following: Aldehydes. Nitrogen oxides, particularly nitric oxide and nitrogen dioxide.
The angular position of the wheel at t = 2. 0 s is 4.5 rad.
Angular Position:
When an object is undergoing a rotational motion, then the orientation of the object with respect to a specific reference position is known as angular position.
Given data:
The angular acceleration of the object at initial is, α = - 0.40 rad/s².
The angular velocity of the object is, ω = 1.5 rad/s.
The angular position of the object at initial is, 
.
The time interval is, t = 2.0 s.
The expression for the angular position of the wheel at t = 2.0 s is,
Solving as,
Thus, we can conclude that the angular position of the wheel at t = 2. 0 s is 4.5 rad.
Learn more about the angular position here:
brainly.com/question/6226195
