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 […]
What is the formula for calculating acceleration?
What is the formula for calculating acceleration? Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Does constant velocity have to be in a straight line? Yes. Velocity […]
What is best treatment for low bone density?
What is best treatment for low bone density? Pharmacologic treatment with alendronate, risedronate, zoledronic acid, or denosumab should be prescribed for women with osteoporosis to reduce the risk of hip and vertebral fractures. Pharmacologic treatment should continue for five years, during which time bone density monitoring should not be done. What happens if you have […]
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 […]
What is a good example of recycling?
What is a good example of recycling? Recyclable materials include many kinds of glass, paper, cardboard, metal, plastic, tires, textiles, batteries, and electronics. The composting or other reuse of biodegradable waste—such as food or garden waste—is also a form of recycling. What are the disadvantages of recycling? Disadvantages of Recycling High upfront capital costs. Recycling […]
Are there fish in man made ponds?
Are there fish in man made ponds? Rare Fish Show Up in Man-Made Ponds. Scientists in Southern California have discovered a mysterious booming population of endangered desert pupfish in man-made research ponds designed for an entirely different purpose. How do man made ponds get fish? A pond that forms near other ponds may receive new […]
When approaching a railroad crossing with flashing lights you must quizlet?
When approaching a railroad crossing with flashing lights you must quizlet? Flashing red lights, lowered crossing gates and/or a bell at a railroad crossing indicate that you must stop, at least 15 feet (5 m) from the tracks. Do not go across the tracks until the lights and bell have stopped and the crossing gates […]
What is transistor action?
What is transistor action? So in a NPN Transistor it is the movement of negative current carriers (electrons) through the Base region that constitutes transistor action, since these mobile electrons provide the link between the Collector and Emitter circuits. How many electrons are there in a transistor? There are about 6.24×1018 electrons per Coulomb, so […]
Which is equal to 0.0079 in scientific notation?
Which is equal to 0.0079 in scientific notation? Therefore, the decimal number 0.0079 written in scientific notation is 7.9 × 10-3 and it has 2 significant figures. What is the scientific notation for 140000000? Why is 140,000 written as 1.4 x 105 in scientific notation? How do you write 0.72 in scientific notation? Therefore, the […]
What is the newest food pyramid?
What is the newest food pyramid? The most recent update of the Dietary Guidelines came out in 2020, and it uses an updated MyPlate visual model. The 2020 MyPlate model, shown below, shows a plate containing the five food groups (fruits, vegetables, proteins, grains, and dairy) in a place setting. Which food group should you […]