It is true that there are two types of addiction, psychological and
physical. When it comes to physical addiction, it normally refers to
drug withdrawal or drug usage, when your body is exhibiting various
symptoms of needing drugs. Mental addiction refers to when there is no
actual need to use the object of addiction, but rather a mental desire
to use it and have it again.
Answer: 2m/s
Explanation:
V avg = Displacement / time
Displacement is 8
Time is 4
V avg = 2
Answer:
Well this would be science... not physics...
Explanation:
1) both are a product of cooling lava/magma
2) Both stones can be caused during volcanic eruptions or clastic flow
3) Both are igneous in family (duh)
4) Intrusive rocks are formed underground from seeping into crevasses and are slow cooling and extrusive rocks are fast or instant cooling and cool above the surface (if differences are needed)
Answer:
m₂ = 2.91 kg
Explanation:
Let's analyze the exercise, ask us for the mass of the body we could find with Newton's second law and we need the acceleration that we can calculate with kinematics
Let's start looking for acceleration with kinematics
y = vo t + ½ a t²
They indicate for the first second (t = 1 s) it descends y = 0.23 m
y = ½ a t²
a = 2 y / t²
a = 2 0.23 / 1²
a = 0.46 m/s²
Let's look for the mass of the Atwood machine with Newton's second law, let's write the equations for each mass
W₁- T = m₁ a
T - W₂ = m₂ a
Let's add the two equations
W₁ -W₂ = (m₁ + m₂) a
m₁ g - m₂ g = m₁ a + m₂ a
m₂ (a + g) = m₁ (g-a)
m₂ = m₁ (g-a) / (g + a)
m₂ = 3.2 (9.8 -0.46) / (9.8 + 0.46)
m₂ = 3.2 9.34 / 10.26
m₂ = 2.91 kg
