When iodine crystals are heated, they change directly from a solid into a purple gas. This is an example of __________. When the
2 answers:
You might be interested in
Answer:
4.25 s
Explanation:
Given:
angular acceleration'α'= 1.8 rad/s²
angle 'θ'= 45 rad
time 't'= 4s
initial angular velocity ''=0
as we know that,
θ= t +
45 = 4 + (0.5 x 1.8 x 16)
45- 14.4 = 4
30.6 = 4
= 7.65
Next is to find t by using the equation
=
+
7.65= 0 + (1.8)
= 7.65/1.8
= 4.25 s
Therefore, At the start of 4s interval the motion is at 4.25 second
Answer:
Explanation: The equations used are as follows:
By using equation (2), the time needed for the car to come to rest is calculated as follows:
By using equation (1), The total distance traveled in that time would be as:
The revolutions taken by the tire before the car comes to rest would be: