Before entering the closed room, the cert members should assess
the situation first. They should gather information in order to determine if it’s
safe to go or if needed assistance to the current situation. They should consider some probabilities
before they establish the decision and take an action. Especially to the current situation where there is a possibility that the smoke that they smell is coming from the room and the reason may be because there is a fire. Assessing the situation before taking an action immediately is a must, in order to prevent further harm.
Answer:
The bucket located in the direction opposite of displacement of the rod for balancing will be heavier.
Explanation:
Moment of a force is directly proportional to it's distance from the point about which rotation takes place. In the given case the man increases the lever arm(distance from point of rotation of the force) to balance the moment of the lighter bucket. Thus in the direction of the increase the lighter bucket will be placed.
Answer: 3.78 m
Explanation:
Volume = 1.9 * 1.9 * 1.9
Volume = 6.859 m³
Density of iron assumed to be 7870 kg/m³
Recall,
Density = mass / volume, so
Mass = density * volume
Mass = (7870 * 6.859)
Mass = 53980.33 kg
This mass we calculated, is the mass of water the new cube would have to displace, absolute minimum, so that it can float.
Now density of fresh water is assumed to be (1000 kg/m³).
Thus, the volume of water that will be displaced has to be
Volume = mass / density
Volume = (53980.33 / 1,000)
Volume = 53.98 m³.
Cube root of 53.88 = 3.78 m
Therefore, the minimum side length is 3.78 m
