Category: Physics

What are the positive effects of a volcano? Volcanoes can provide people with many benefits such as: volcanic rock and ash provide fertile land which results in a higher crop yield for farmers. tourists are attracted to the volcano, which increases money to the local economy. geothermal energy can be harnessed, which provides free electricity […]

Is domain left to right? Note that the domain and range are always written from smaller to larger values, or from left to right for domain, and from the bottom of the graph to the top of the graph for range. How do you tell if the domain is all real numbers? For the quadratic […]

What does hypothesis mean in simple terms? A hypothesis is a suggested solution for an unexplained occurrence that does not fit into current accepted scientific theory. The basic idea of a hypothesis is that there is no pre-determined outcome. What is the best definition for the word prediction? A prediction is what someone thinks will […]

Does spring constant depend on gravity? Gravity has nothing to do with the spring constant. It can only effect the net force on the spring depending on the orientation of the spring. If the spring is oriented horizontally, gravity has no effect. Does spring constant change with compression? The proportional constant k is called the […]

How much time is a parsec? It is defined as 360×60×60/2π astronomical units (AU), which is equivalent to about 19.17 trillion miles, or about 3.262 light-years. The Star Wars parsec appears to be equivalent to the real-world measurement: The Essential Atlas says a parsec is 3.26 light-years. How many parsecs are in the universe? The […]

What type of epithelial tissue looks stratified but is not? Pseudostratified columnar epithelium is a type of epithelium that appears to be stratified but instead consists of a single layer of irregularly shaped and differently sized columnar cells. In pseudostratified epithelium, nuclei of neighboring cells appear at different levels rather than clustered in the basal […]

What is the effect of changing temperature on the pressure? As the temperature increases, the particles move faster, and therefore have greater speeds, so greater momentum and therefore greater force when they collide with the walls, so the pressure increases. What is the relationship between air pressure and temperature? Air pressure is influenced by temperature […]

How do the equations y MX and Y KX compare? We can compare y = kx to the slope-intercept form of a line, y = mx + b. We can see that y = kx is a linear equation with slope k and y-intercept 0. This tells us that the graph of a direct variation […]

What is buffer solution give example? Buffer solutions resist a change in pH when small amounts of a strong acid or a strong base are added (Figure 1). A solution of acetic acid and sodium acetate (CH3COOH + CH3COONa) is an example of a buffer that consists of a weak acid and its salt. What […]

Can you restore color to clothes? Salt to restore faded colors. Add half a cup of salt during the wash cycle to restore the vividness of colored clothes. Baking soda to retain crispiness of color. During the wash cycle, add half a cup of baking soda to retain the vibrancy and crispiness of your colored […]