The barometer is used for measuring air pressure.
Answer:
<h3>
5 kg</h3><h3>
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Explanation:
∑Fx = 0
F1 + F2 = 0
-12 + 2 = -10
force acting against the block is Fx = 10N to the right.
Force = mass * acceleration
where acceleration = 2.0 meters per second.
force = 10 N
mass = ??
<u>plugin values into the formula:</u>
10 = mass * 2.0
mass = 10 / 2.0
mass = 5 kg
mass on the block = 5kg.
Answer:
1) A = 0.25 m², 2) V = 0.5 m³, 3) m = 1500 kg, 4) W = 14700 N,
5) P = 58800 Pa
Explanation:
1) The area of the base is square
A = L²
A = 0.5²
A = 0.25 m²
2) The block is a parallelepiped
V = A h
V = 0.25 2
V = 0.5 m³
3) Density is defined
rho = m / V
m = rho V
m = 3000 0.5
m = 1500 kg
4) The weight of a body is
W = mg
W = 1500 9.8
W = 14700 N
5) The pressure is
P = F / A
in this case the force is equal to the weight of the body
P = 14700 / 0.25
P = 58800 Pa
Answer:
Cells come from other pre-existing cells
Explanation:
