How do you find the direction of a vector given two points? Find A Direction Vector When Given Two Points : Example Question #3. Find the vector that has the initial point and the terminal point . Explanation: To find the directional vector, subtract the coordinates of the initial point from the coordinates of the […]
Why are metals so hard?
Why are metals so hard? Metal have lots of free electrons which create a huge electron pressure (on the order of 100,000 atm), so to crush them,pressures higher than their internal electron gas pressure is required; this is why they are hard. Do metals have a giant structure? Metals consist of a giant metallic structure. […]
Is calcium more reactive than magnesium?
Is calcium more reactive than magnesium? These metals are less reactive than the neighboring alkali metal. Magnesium is less active than sodium; calcium is less active than potassium; and so on. These metals become more active as we go down the column. Magnesium is more active than beryllium; calcium is more active than magnesium; and […]
Is there friction in vacuum?
Is there friction in vacuum? The results seemed to go against the laws of physics: The vacuum, by definition, is completely empty space and does not exert friction on objects within it. As a decaying atom moves through the vacuum, it really does experience some kind of force resembling friction. Is there friction on the […]
What happens if you drink liquid helium?
What happens if you drink liquid helium? Although helium is nontoxic and inert, it can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support life. Inhalation of helium in excessive amounts can cause dizziness, nausea, vomiting, loss of consciousness and death. What is colder than liquid […]
What is the effect of temperature on rubber?
What is the effect of temperature on rubber? The rubber band actually expands when it gets colder! This seems counterintuitive because most materials expand when they are heated and contract when they get cold. This occurs because of the unusual polymer structure of rubber. How long does it take for rubber bands to decompose? 1 […]
How can we prevent heat loss through windows?
How can we prevent heat loss through windows? To reduce heat loss through windows, the installation of double / triple glazing can significantly reduce any losses. Generally, the gaps between the panes of glass are filled with air. Heat loss is reduced as air is a poor conductor of heat. How do you reduce wall […]
How many 16 oz bottles of water should I drink a day to lose weight?
How can I be good at physics?
How can I be good at physics? Best Ways to Study and Do Well in Physics: Good understanding of the basics: Memorizing basic equations: Strengthening your math skills: Studying derivations: Analyze problems: Focus on important aspects of each problem: Utilize drawings: Making use of correct units: Is college level physics hard? College level physics relies […]