Density is equal to mass divided by volume; that said, you would divide 38.6 by 2 to get your answer
Answer:
50.96 N
Explanation:
weight = mass x gravity
We know that gravity = 9.8 m/s^2 and mass = 5.2 kg.
w = m x g
w = 5.2 kg x 9.8 m/s^2
w = 50.96 N
The weight of the object is 50.96 N (newtons). Hope this helps, thank you !!
Answer:
a) r = 4.22 10⁷ m, b) v = 3.07 10³ m / s and c) a = 0.224 m / s²
Explanation:
a) For this exercise we will use Newton's second law where acceleration is centripetal and force is gravitational force
F = m a
a = v² / r
F = G m M / r²
G m M / r² = m v² / r
G M / r = v²
The squared velocity is a scalar and this value is constant, so let's use the uniform motion relationships
v = d / t
As the orbit is circular the distance is the length of the circle in 24 h time
d = 2π r
t = 24 h (3600 s / 1 h) = 86400 s
Let's replace
G M / r = (2π r / t)²
G M = 4 π² r³ / t²
r = ∛(G M t² / (4π²)
r = ∛( 6.67 10⁻¹¹ 5.98 10²⁴ 86400² / (4π²)) = ∛( 75.4 10²¹)
r = 4.22 10⁷ m
b) the speed module is
v = √G M / r
v = √(6.67 10⁻¹¹ 5.98 10²⁴/ 4.22 10⁷
v = 3.07 10³ m / s
c) the acceleration is
a = G M / r²
a = 6.67 10⁻¹¹ 5.98 10²⁴ / (4.22 10⁷)²
a = 0.224 m / s²
Q7. A fizzing sound was overheard shadowed by the rushing out
of bubbles from the bottle dipped in hot water. There was also a sound perceived
in the bottle to be found in cold water but not as much as in bottle A.
Q8. There was amassed gas inside the bottle.
Q9. The hot water surges the temperature of the soda drink
inside the bottle. As the temperature increases, more gas is accumulated inside
the bottle. This reasons the fizzing sound.
Q10. The observation in the bottle of cooking oil is not the
same as in the soda drinks.
<span>Q11. There was little gas out in the bottle of cooking oil for
the reason of its structure. We know that soda drink is carbonated. The great
temperature free the gas from the soda drinks.</span>
Answer:
yooooooooooooooo thanks for the points bestie
