Answer:
<em>the centripetal acceleration will now be four times its initial value</em>
Explanation:
v=velocity
a=centripetal acceleration
r=radius to the center
take note tat a centripetal force is the force tat is needed to keep a body moving along a circular path
centripetal force is given by f=mv^2/r
a=v^2/r
v=v
wen v is doubled , we ave
2v
substituting into the previous equation of centripetal force
a=(/r
a=4^{2}/(r)
from the equation, is can be discovered that the centripetal acceleration will now be four times its initial value
Answer:
wen I was in the car toing home from school after a bad day n si si I have crazzyyy
The formula that relates the 3 variables, namely: mass,
volume, and density is: Density = mass / volume.
Let us identify each variable:
Density - more accurately called the volumetric mass density of a
substance is its mass per unit volume. It is a key concept that examines how
materials communicate in a lot of things, i.e weather, material sciences,
engineering, and other fields of science.
Mass – defined as a property of
a physical body in Physics, and when a net force is applied,
it results to the measure of a specific
object’s resistance to acceleration.
Volume - <span>contained or
occupied by the space of a substance or shape (either by a solid, liquid, gas
or plasma state)</span>
Zinc metal (Zn) reacts with sulfur (S) to create zinc sulfide (ZnS), and the chemical reaction is: Zn (s) + S (s) = ZnS (s).
Importance of Zinc (Zn) and sulfur (S):
- Zinc(Zn) is a vital element that our systems need to absorb food and nutrients as well as create healthy skin and bones. Zinc(Zn) ions play a crucial role in a number of the body's enzymes.
- Sulfur(S) is a pale yellow, tasteless, brittle solid that is also necessary for life. It is found in many proteins as well as the amino acids cysteine and methionine. It is a trace element found in bone minerals, bodily fluids, and lipids.
Chemical reaction -
In this experiment, heating a zinc(Zn) and sulfur(S) combination causes an interesting chemical reaction. A blinding flash of light, hot sparks, a hissing sound, and a cloud of white smoke in the shape of a mushroom are produced.
Therefore, the following chemical processes are taking place in the reaction: Zn (s) + S (s) = ZnS (s).
Learn more about Zinc(Zn) here:
brainly.com/question/13890062
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Answer:
Explanation:
a ) density = mass / volume
density of mars / density of earth
= (mass of mars/mass of earth) x (volume of earth / volume of mars)
= (mass of mars/mass of earth) x (diameters of earth / diameters of mars)³
= 0.11 x (130/69)³
= .73
b )
gravitational acceleration (g) = GM/R²
Gravitational acceleration on mars / Gravitational acceleration on earth
= (mass of mars / mass of earth) x (radius of earth / radius of mars )²
= .11 x (130/69 )²
= .39
Gravitational acceleration on mars = .39 x Gravitational acceleration on earth
Gravitational acceleration on mars = 9.8 x .39
= 3.82 m/s
c ) Escape velocity
c ) escape speed of mars / escape velocity of earth
= [( g on mars / g on earth ) x ( radius of mars / radius of earth )]°⁵
= √(.39 x 69/130)
= .4549
escape speed of mars = .4549 x escape velocity of earth
= .4549 x 11.2km/s
= 5.1 km / s