What happened to the alpha particles when they hit the gold foil? Alpha particles only have 2 protons, so the positive charge is not strong enough to attract the electrons in the gold atom. It might have definitely interacted, with the electrons “pulling” them toward themselves, which result in a tiny force which pushed the […]
Do vitamins give energy?
Do vitamins give energy? Vitamin B-12, or cobalamin, is a nutrient you need for good health. It’s one of eight B vitamins that help the body convert the food you eat into glucose, which gives you energy. Vitamin B-12 has a number of additional functions. What are the main source of fresh water? precipitation What […]
What does 60 feet 6 inches mean in baseball?
What does 60 feet 6 inches mean in baseball? 60 feet 6 inches is a hallowed baseball number. It might be time for a change. Francis Richter, the editor of the weekly newspaper “Sporting Life,” helped promote the idea of moving the pitcher five feet further from the batter. Before the 1893 season, the National […]
Does a nerve impulse travel faster with myelin or without it?
Does a nerve impulse travel faster with myelin or without it? Myelin speeds up impulses By jumping from node to node, the impulse can travel much more quickly than if it had to travel along the entire length of the nerve fibre. Myelinated nerves can transmit a signal at speeds as high as 100 metres […]
What do V shaped contour lines indicate the presence of?
What do V shaped contour lines indicate the presence of? Widely spaced contour lines indicate that the land is relatively level. A contour line that bends to form a V shape indicates a valley. The bend in the V points toward the higher end of the valley; this V points upstream, or in the direction […]
What are sources of noise?
What are sources of noise? There are many sources of noise pollution, but here are some of the main ones: Traffic noise. Traffic noise accounts for most polluting noise in cities. Air traffic noise. Construction sites. Catering and night life. Animals. Physical. Psychological. Sleep and behavioural disorders. What are the two major sources of noise […]
How fast do Tour de France riders go uphill?
Do colleges allow test retakes?
Do colleges allow test retakes? Partial retakes are permitted by others if there are certain sections a student performs poorly on, and still others allow students to retake any exam at any time, and use the higher grade as their final score. Why is teaching to the test bad? In a research paper published in […]
What is the purpose of graphite?
What is the purpose of graphite? Graphite is used in pencils and lubricants. It is a good conductor of heat and electricity. Its high conductivity makes it useful in electronic products such as electrodes, batteries, and solar panels. What are the properties of graphite and diamond? Diamond Graphite The geometry is tetrahedral. The geometry is […]