<h2>
a) Acceleration due to gravity on the surface of the Moon is 1.64 m/s²</h2><h2>
b) Acceleration due to gravity on the surface of the Mars is 3.75 m/s²</h2>
Explanation:
a) Acceleration due to gravity
G = 6.67 × 10⁻¹¹ m² kg⁻¹ s⁻²
Mass of moon, M = 7.35 × 10²² kg
Radius of moon, r = 1.73 × 10⁶ m
Substituting
Acceleration due to gravity on the surface of the Moon is 1.64 m/s²
b) Acceleration due to gravity
G = 6.67 × 10⁻¹¹ m² kg⁻¹ s⁻²
Mass of Mars, M = 6.418 × 10²³ kg
Radius of Mars, r = 3.38 × 10⁶ m
Substituting
Acceleration due to gravity on the surface of the Mars is 3.75 m/s²
1.2 x (2.2 x 10⁵) = 264,000 Ω
0.8 x (2.2 x 10⁵) = 176,000 Ω
With a 'nominal' value of 220,000 Ω, it could actually be anywhere <em>between 176,000Ω and 264,000Ω</em> .
The formula of the kinetic energy is KE = 0.5*m*v^2.
Given m = 80 kg and KE = 4000 J,
4000 = 0.5*80*v^2
v^2 = 100
v = 10 m/s
Answer:
The formula for calculating Density is:
= Mass / Volume
From this formula, we can say that the relationship between Mass and Density is a direct one. In other words, if mass is increasing - all else being equal - then density will increase as well.
If mass however was decreasing, density would have to decrease as well.
For example, assume 3 bricks have masses of 5kg, 10kg and 15kg. Also assume that the bricks all have the same volume of 5 m³.
Density of 5kg brick = 5 / 5 = 1 kg/m³
Density of 10kg brick = 10 / 5 = 2kg / m³
Density of 15kg brick = 15 / 5 = 3 kg /m³
<em>Notice how density increases as mass increases and decreases when mass decreases. </em>
