Answer:
T1 = 250.57[N] and T2 = 250.57[N]
Explanation:
First we have to extract all the information they give us about the problem, then make a free body diagram with all the forces that act on the body.
In the attached image we can see the free body diagram with the respective forces.
By summing up forces on the Y-axis, we can find the T1 and T2 force, these forces are equal since it is an initial condition of the problem. This equation can therefore be cleared.
The equations and analysis can be seen in the attached image
The answer is a steep mountainside
Answer:
D is the answer
Explanation:
An block might be moving at a certain velocity, but if no net force acts on it , there is no net acceleration
Answer:
The thermal conductivity of the material from which the box is made is .
Explanation:
Given that,
Inside temperature = -89.8°C = 183.2 K
Outside temperature = 18.3 °C = 291 K
Thickness of walls
Heat
Side = 0.276 m
We need to calculate the thermal conductivity of the material
Using formula of the thermal conductivity
Put the value into the formula
Hence, The thermal conductivity of the material from which the box is made is .
Maximum height: h = v0² sin² α / 2 g
Horizontal range: x = v0² sin 2 α / g
13.5 v0² sin² α /2 g = v0² sin 2 α /g / : v0²/g
6.75 sin² α = 2 sin α cos α / : sin α
6.75 sin α = 2 cos α / : cos α
6.75 tan α = 2
tan α = 0.2963
α = tan^(-1) 0.2963
α = 16.504° ≈ 16.5°
The angle of projection is 16° 30`.