Category: Physics

What are 3 differences between fission and fusion nuclear reactions? Nuclear fusion occurs when two or more atoms join or fuse together to form a large or a heavier atom….Nuclear Fission vs Nuclear Fusion. Nuclear Fission Nuclear Fusion Little energy is needed to split an atom in a fission reaction High energy is needed to […]

What does too much oxygen do to fish? Too much oxygen in water can lead to the potentially lethal gas bubble disease, in which gas comes out of solution inside the fish, creating bubbles in its skin and around its eyes. (Excess nitrogen, however, is a far more common cause of this disease.) How do […]

Does boiling release energy? The amount of energy absorbed when a substance boils, and released when the same amount of substance condenses, is the same. The phase transition is solid to gas, so energy will be absorbed. The process involves the ice melting to water, the water heating from 0 °C to 100 °C, then […]

Which is the direction of the net force on the charge at the top? Since the forces are repulsive, the net force will be away from the center of the square. The charge on the bottom left will be expelled largely by the charge on the top right, which is a double positive charge. Therefore, […]

Is freeze/thaw an example of physical weathering? There are two main types of physical weathering: Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart. Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion. Is freeze and […]

How dangerous is static? Static electricity can build up in clouds. It is dangerous when you touch something with a large electric charge on it. The charge will flow through your body causing an electric shock. This could cause burns or even stop your heart. How can we control static electricity while loading and unloading […]

Why is paper bad for the environment? The life cycle of paper is damaging to the environment from beginning to end. It starts off with a tree being cut down and ends its life by being burned – emitting carbon dioxide in the atmosphere. Paper production uses up lots of water. When paper rots, it […]

Which are the important therapeutic radiopharmaceuticals in nuclear medicine? hi practice, radionuclides that emit beta par- ticles, as well as those capturing electrons and emitting what are known as Auger electrons, are the only ones that have been used in therapeutic nuclear medicine. Why half life is so important for a radionuclide used in nuclear […]

What is the most important article of faith in Islam? Islam began with the Prophet Muhammad. Islam means “surrender” and its central idea is a surrendering to the will of God. Its central article of faith is that “There is no god but God and Muhammad is his messenger”. Followers of Islam are called Muslims. […]

What cell structures do eukaryotes have? In addition to the nucleus, eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus, and lysosomes. What are some examples of prokaryotic and eukaryotic cells? Prokaryotic cells lack internal cellular bodies (organelles), while eukaryotic cells possess them. Examples […]