What does Obama do as president? Obama’s first-term actions addressed the global financial crisis and included a major stimulus package, a partial extension of the Bush tax cuts, legislation to reform health care, a major financial regulation reform bill, and the end of a major US military presence in Iraq. What does Michelle Obama do […]
What is moving source and observer?
What is moving source and observer? If the observer moves toward the source at a speed vo, more waves are intercepted per second and the frequency received by the observer goes up. Effectively, the observer’s motion shifts the speed at which the waves are received; it’s basically a relative velocity problem. What are the four […]
Is the crate accelerating?
Is the crate accelerating? The crate has a horizontal acceleration equal to the tension T divided by m, the mass of the crate. What about the forces in the vertical direction? The upward normal force exerted by the floor on the crate, in this situation, is equal to the weight, the downward force of gravity. […]
How do you know if an equation has more than one solution?
How do you know if an equation has more than one solution? The equation simplifies to the point that it no longer contains a variable, but expresses a true equation, e.g. 0=0 . For example: 2x+2=2(x+1) simplifies in this way. The equation has an identifiable solution and is periodic in nature. For example: tan2x+tanx−5=0 has […]
Who performed at 2012 Grammys?
Who performed at 2012 Grammys? Paul McCartney received the MusiCares Person of the Year award on February 10, 2012, at the Los Angeles Convention Center, two nights prior to the Grammy telecast….Performers. Artist(s) Song(s) Bruno Mars “Runaway Baby” Alicia Keys Bonnie Raitt Tribute to Etta James “A Sunday Kind of Love” Who won the Grammy […]
How would you prove experimentally the law of conservation of mass?
How would you prove experimentally the law of conservation of mass? Hello, The law of conservation of mass states that during in a physical or chemical change, the mass of products remains equal to the total of reactants. Thus, we obtain Mass of product = Mass of reactants. This verifies the law of conservation of […]
How do you bypass a light switch?
What are the common properties of solid material?
What are the common properties of solid material? A solid has a definite shape and does not change easily. For example, wood, plastic, rocks or steel would be considered solids. The molecules of a liquid move freely past each other. Liquids flow or pour, and must be kept in containers, take the shape of the […]
Which article is used for university?
Which article is used for university? “University” is a singular countable noun. Although it begins with a vowel, the first sound of the word is /j/ or “y.” Thus, “a” instead of “an” is used. What are the 3 types of articles? In English there are three articles: a, an, and the. Articles are used […]