Answer:
The rocket will appear larger than it actually is
Atomic mass is equal to the number of protons and neutrons. Electrons have so little mass that they are practically negligible.
Atomic mass= 4+4= 8 AMU
The answer is 2. The number 2 does not go into 55 evenly, therefore making it not a factor. All the others are factors. You can solve this using the factor list method.
Factors of 55
<em>1, 55</em>
<em>5, 11</em>
<em>11, 5</em>
<em>55, 1</em>
This works for all problems involving factoring.
<em>H a v e a f a n t a s t i c n i g h t / d a y !</em>
-Dylan (AKA Animus)
Answer:
a) F = 4.9 10⁴ N, b) F₁ = 122.5 N
Explanation:
To solve this problem we use that the pressure is transmitted throughout the entire fluid, being the same for the same height
1) pressure is defined by the relation
P = F / A
to lift the weight of the truck the force of the piston must be equal to the weight of the truck
∑F = 0
F-W = 0
F = W = mg
F = 5000 9.8
F = 4.9 10⁴ N
the area of the pisto is
A = pi r²
A = pi d² / 4
A = pi 1 ^ 2/4
A = 0.7854 m²
pressure is
P = 4.9 104 / 0.7854
P = 3.85 104 Pa
2) Let's find a point with the same height on the two pistons, the pressure is the same
where subscript 1 is for the small piston and subscript 2 is for the large piston
F₁ =
the force applied must be equal to the weight of the truck
F₁ =
F₁ = (0.05 / 1) ² 5000 9.8
F₁ = 122.5 N