Answer:
He studies genetics and found out how reproduction and genetics work together.
Explanation:
I say oil...................
2. Unselected The stated situation isn’t possible.
3. Unselected It has the same net charge as 11 protons.
4. Unselected It has the same net charge as 11 electrons.
Answer:
3. It has the same net charge as 11 protons.
Explanation:
An electrically neutral object contains the same number of protons and electrons. Therefore, if 11 electrons are removed from it, there will be 11 more protons compared to the number of electrons in the object. Thus, the object It has the same net charge as 11 protons.
The pressure exerted by each leg of the chair is calculated by dividing the total weight of the man and the chair (taken as a force) by the total surface area of the chair legs that is in contact with the floor.
To calculate the pressure exerted on the floor by each leg of the chair, we first need to calculate the total weight that the chair legs need to support. The total weight (w) is the weight of the man plus the weight of the chair, where weight is calculated as the mass multiplied by gravity (on Earth this is approx. 9.8 m/s²). So, w = (67.0 kg + 5.0 kg) * 9.8 m/s².
Next, we need to calculate the total area of all the chair legs in contact with the floor. Each leg makes contact over a circular area, the area of which (A) is calculated by 'πr²'. The total area then is 4 times this area (assuming the chair has four legs).
Pressure (P) exerted is the total force (F) applied, divided by the area (A) over which the force is distributed. Therefore the pressure exerted by each leg is the total weight divided by the total area.
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