Category: Physics

Which mineral test is shown in the image 2 points image showing minerals that have been rubbed against a white board leaving different colored lines on the board? Streak test is a method to determine what color would the mineral had if it’s being transformed into a powdered form. This test is being done by […]

What are the most important properties of a star? Mass – The single most important property that determines other properties of the star. Luminosity – The total amount of energy (light) that a star emits into space. Temperature – surface temperature, closely related to the luminosity and color of the star. What does the color […]

What makes a real image? A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to diverge. Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point, and this real image is inverted. […]

What is easier for MG to do based on its valence electrons? Now, magnesium, Mg , has 2 valence electrons. In order to complete its octet, it must get to 8 valence electrons. The only way for magnesium to accomplish this is to give up its two valence electrons and have one of its filled […]

How do you calculate exponential population growth? From the given data, we can conclude the initial population value, x0, equals 10,000. Also, we have the growth rate of r = 5%. Therefore, the exponential growth formula we should use is: x(t) = 10,000 * (1 + 0.05)t = 10,000 * 1.05t . What is exponential […]

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 […]

Why does your hair stand on end when you touch a Van de Graaff? When the Van de Graaff generator starts charging, it transfers the charge to the person who is touching it. Since the person’s hair follicles are getting charged to the same potential, they try to repel each other. This is why the […]

What type of meter is 3 2? 3/2 and 3/8 are also simple triple. 4/4 time is classified as simple quadruple due to its four beats which can be divided into two notes. 4/2 and 4/8 are also simple quadruple. Notice that a time signature in simple meter will always have a 2, 3, or […]

What is the permittivity of a medium? Definition of Permittivity The approximate value for permittivity is 8.85 X 10-12 Faraday/meter, which is found in vacuum medium. The permittivity measures the number of charges needed for generating a unit of electric flux in a specific channel. What is electric intensity in physics? What is Electric Field […]

What are the similarities and differences between electric and magnetic forces? Similarities between magnetic fields and electric fields: Electric fields are produced by two kinds of charges, positive and negative. Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges (but moving charges). Like poles repel; unlike […]