Urbanization is the cause of "urban heat island" a condition that could be described as global warming caused by pollutants of a
1 answer:
You might be interested in
The <em>linear</em> acceleration of collar D when <em>θ = 60°</em> is - 693.867 inches per square second.
<h3>How to determine the angular velocity of a collar</h3>In this question we have a system formed by three elements, the element AB experiments a <em>pure</em> rotation at <em>constant</em> velocity, the element BD has a <em>general plane</em> motion, which is a combination of rotation and traslation, and the ruff experiments a <em>pure</em> translation.
To determine the <em>linear</em> acceleration of the collar (), in inches per square second, we need to determine first all <em>linear</em> and <em>angular</em> velocities (
,
), in inches per second and radians per second, respectively, and later all <em>linear</em> and <em>angular</em> accelerations (
,
), the latter in radians per square second.
By definitions of <em>relative</em> velocity and <em>relative</em> acceleration we build the following two systems of <em>linear</em> equations:
<h3>Velocities</h3> (1)
(2)
(3)
(4)
If we know that ,
,
,
,
and
, then the solution of the systems of linear equations are, respectively:
(1)
(2)
,
(3)
(4)
,
The <em>linear</em> acceleration of collar D when <em>θ = 60°</em> is - 693.867 inches per square second.
The statement is incomplete and figure is missing, complete form is introduced below:
<em>Arm AB has a constant angular velocity of 16 radians per second counterclockwise. At the instant when θ = 60°, determine the acceleration of collar D.</em>
To learn more on kinematics, we kindly invite to check this verified question: brainly.com/question/27126557
Answer:
A) T.
Explanation:
Kepler's third law states that the orbital period (T) of a satellite is related with the radius (R) and the mass of the object (M) it orbits:
So the orbital period is independent of the mass of the satellite, that means no matter the mass every satellite at a radius R around the earth have an orbital period A.
Answer:
The final displacement from the origin is <u>1.6</u> km to the <u>NE</u>
Explanation:
The directions in which the delivery truck travels are;
1) 2.8 km North = 2.8·, in vector form
2) 1.0 km East = 1.0·, in vector form
3) 1.6 km South = -1.6·, in vector form
Therefore, to find the final displacement, Δx, of the delivery truck, we add the individual displacements as follows;
Final displacement, Δd = 2.8· + 1.0·
+(-1.6·
) = 1.2·
+ 1.0·
Final displacement, = 1.0· + 1.2·
Where;
Δx = The displacement in the x-direction = 1.0·
Δy = The displacement in the y-direction = 1.2·
The magnitude of the resultant displacement vector is given as follows
= √((Δx)² + (Δy)²) = √(1² + 1.2²) ≈ 1.6 (To the nearest tenth)
The magnitude of the resultant displacement vector ≈ 1.6 km
The direction of the resultant vector is positive for both the east and north direction, therefore, the direction of the resultant vector = NE
Therefore, the resultant displacement of the delivery truck is approximately 1.6 km, NE from the origin.