What three conclusions came from the gold foil experiment? most of the alpha particles did pass straight through the foil. a small number of alpha particles were deflected by large angles (> 4°) as they passed through the foil….Rutherford and the nucleus. What happened Rutherford’s conclusions Most of the alpha particles did pass straight through […]
Is anyone lost in space?
Is anyone lost in space? A total of 18 people have lost their lives either while in space or in preparation for a space mission, in four separate incidents. Given the risks involved in space flight, this number is surprisingly low. The two worst disasters both involved NASA’s space shuttle. What are the risks of […]
What are two main sources of the sediment that rivers and streams carry?
What are two main sources of the sediment that rivers and streams carry? The two main sources of the sediment carried by the streams and rivers are from the mass movement and runoff. What is the largest river on Earth? Nile River Which is the smallest river in the world? Roe River Which country has […]
How long do atoms live for?
Can Methanol hydrogen bond with itself?
Can Methanol hydrogen bond with itself? Methanol is certainly similar to formaldehyde in some ways. It is these strong hydrogen bonds that are responsible for the relatively high boiling point of methanol; there is so much positive charge on the hydrogen of the OH group that it can essentially form a real bond with the […]
Which is the densest of all layers?
Which is the densest of all layers? inner core What are the 4 layers of earth? Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust. Except for the crust, no one has ever explored these layers […]
What are the sources of error in this experiment?
What are the sources of error in this experiment? You are measuring against a standard, using an instrument that can never perfectly duplicate the standard, plus you’re human, so you might introduce errors based on your technique. The three main categories of errors are systematic errors, random errors, and personal errors. What is meant by […]
Why does rain make me feel safe?
Why does rain make me feel safe? Studies have found that when rain sounds enters people’s brain, brain unconsciously relaxes and produces alpha waves, which are very close to the state of brain when human sleeps. Rain sound is generally between 0 and 20 kHz. It is not upsetting. On the contrary, this sound makes […]
Does helium go bad?
Does helium go bad? No, helium does not expire. You must close the valve tightly or helium will leak over time. Are Balloon Time tanks recyclable? What weight can helium lift? Helium atoms weigh less than the oxygen and nitrogen atoms in the air. Helium has a lifting force of about one gram per litre. […]