Why do all objects hit the ground at the same time? Gravity is the force that causes things to fall to earth. When you drop a ball (or anything) it falls down. Gravity causes everything to fall at the same speed. This is why balls that weigh different amounts hit the ground at the same […]
Is H2 is polar covalent bond?
Is H2 is polar covalent bond? So, Is H2 polar or nonpolar? H2 is a nonpolar molecule because of the linear geometrical structure and the same electronegativity of both hydrogen atoms due to which they share an equal proportion of the charge resulting in the net-zero dipole moment making it a nonpolar molecule. What is […]
What are the types of radioactive waste?
What are the types of radioactive waste? There are five types of radioactive waste- high level, low level, intermediate level, mining and milling and transuranic waste. How much nuclear waste is low level? Low-level waste (LLW) has a radioactive content not exceeding four giga-becquerels per tonne (GBq/t) of alpha activity or 12 GBq/t beta-gamma activity. […]
Does evaporation takes place from the surface of liquid?
Does evaporation takes place from the surface of liquid? Evaporation is a type of vaporization of a liquid that only occurs on the liquid’s surface. Usually, the molecules in a glass of water do not have enough heat energy to escape from the liquid. With sufficient heat, however, the liquid would quickly turn into vapor. […]
When did the Earth stand still?
When did the Earth stand still? 275 million to 200 million years ago What would happen if the world stood still? If the earth stood still, the oceans would gradually migrate toward the poles and cause land in the equatorial region to emerge. This would eventually result in a huge equatorial megacontinent and two large […]
What did Newton say when the apple fell?
What did Newton say when the apple fell? “Aha!” he shouts, or perhaps, “Eureka!” In a flash he understands that the very same force that brought the apple crashing toward the ground also keeps the moon falling toward the Earth and the Earth falling toward the sun: gravity. Is the Apple story true? “Newton cleverly […]
How long does it take for an object to fall?
Can sulfur exist as a single atom?
Can sulfur exist as a single atom? Sulfur forms single bonds rather than double bonds as an element. It exists as disulfide but as an ion with two negative charges, not as an element. Sulfur (and Selenium also in the same group) due to its bigger atomic size has stronger Vander Waal forces among atoms. […]
Do plants absorb nutrients at night?
Do plants absorb nutrients at night? Transport to the leaves: Plant food rises from the roots to the leaves. During the day, the sap goes up thanks to the evaporation and transpiration in the leaves. At night, the sap goes up thanks to the accumulation of salts and minerals at the root level, called “root […]
Can electric lines appear as closed loop?
Can electric lines appear as closed loop? If the electric field lines form a closed loop, these lines must originate and terminate on the same charge which is not possible because electric field lines always move from positive to negative. Therefore, we say electrostatic field lines never form closed loops. Why is electric field discontinuous […]