Displacement is known as the net movement of an object with respect to its original position. One may travel out of his city and return. Despite having covered many miles, he will have have a displacement of 0.
This is true for all paths that have zero displacement, that they all return to their original position.
Answer:
The tension in the rope is 20 N
Solution:
As per the question:
Mass of the object, M = 2 kg
Density of water, 
Density of the object, 
Acceleration due to gravity, g = 
Now,
From the fig.1:
'N' represents the Bouyant force and T represents tension in the rope.
Suppose, the volume of the block be V:
V = 
(1)
Also, we know that Bouyant force is given by:
Using eqn (1):
From the fig.1:
N = Mg + T
40 = 2(10) + T
T = 40 - 20 = 20 N
Answer:
The correct answer is...
A. True
Answer:
The maximum acceleration the train can have without causing any actors to slide off = 8.232 m/s²
Explanation:
As long as the force of the moving train (on the actors), that causes acceleration doesn't exceed the frictional force between the shoes of the actors and the train, the actors will not slide off.
The maximum acceleration is the acceleration that corresponds to just when this acceleration causing force matches the frictional force.
Frictional force per actor = μN
where N is the normal reaction of the train on each actor and it is equal to mg, the weight of each actor.
The force causing acceleration = ma
So, ma = μ mg
Such that the masses can cancel out
a = μ g = 0.84 × 9.8 = 8.232 m/s²
Therefore, the maximum acceleration the train can have without causing any actors to slide off = 8.232 m/s²
Answer:
Addition reactions with benzenes lead to the loss of aromaticity.
Benzene and its derivatives undergo a type of substitution reaction in which a hydrogen atom is replaced by a substituent, but the stable aromatic benzene ring is regenerated at the end of the mechanism.
Benzene and its derivatives tend to undergo electrophilic aromatic substitution reactions.
Explanation:
