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Lego blocks are a children's toy designed to be stackable to create different shapes and structures. As such, it does not take significant strength to separate the blocks. Legos are designed for kids aged five and up and therefore require minimum force to separate and connect the bricks.
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Why doesn't the repulsive force of protons in the atomic nucleus cause the protons to fly apart?
The strong nuclear force overcomes the repulsive force of protons, holding them together in the nucleus. This force is much stronger than the electromagnetic force that causes the repulsion between the positively charged protons.
How much work is done by gravity on the two-block system?
The work done by gravity on the two-block system is equal to the force of gravity multiplied by the distance the blocks move in the direction of gravity.
Why is the force of attraction between earth and ourselves so huge compared to the attraction of two apples?
The force of attraction between Earth and ourselves is greater than between two apples because it depends on the masses of the objects and their distance apart. Earth has a much larger mass and we are much closer to its center, resulting in a stronger gravitational force compared to two apples of smaller mass and farther apart.
A man is carrying cement blcks weighing 200 newtons up a ladder to a platform 7 meters above the ground he has been carrying 2 blocks per minute how much work is done in 2 minutes?
To calculate the work done in 2 minutes, we first need to find the total weight of the cement blocks being carried in 2 minutes. In 2 minutes, the man carries 4 cement blocks (2 blocks per minute x 2 minutes). The total weight of these blocks is 800 newtons (200 newtons per block x 4 blocks). The work done is equal to the force applied multiplied by the distance moved in the direction of the force. In this case, it would be 800 newtons x 7 meters = 5600 joules.
Is electrical force much weaker than the force of gravity?
Yes, the electrical force between charged particles is much stronger than the force of gravity between them. For example, the electrical force between two protons is about 10^36 times stronger than the gravitational force between them. This is why the electrical force dominates at the atomic and subatomic levels.
