Category: Physics

What are the three steps of seafloor spreading? Terms in this set (7) Magma comes out of the rift valley. Magma cools to rock and hardens. Rock is pushed away as new rock is formed at MOR. Oceanic crust and continental crust meet at the trench. Oceanic crust bends down under the continental crust. Gravity […]

Does smoking change sperm DNA? How does smoking affect sperm? Men who smoke have decreased sperm concentration, decreased motility (how sperm swim), fewer normally shaped sperm, and increased sperm DNA damage. Do cigarettes alter your DNA? While we’ve long known that smoking is linked to cancer, this new research allows scientists to quantify the molecular […]

At which stage is potential energy at its minimum? The potential energy due to gravity is at a minimum, since the mass is lifted the least amount above ground. In fact, if ground level is imagined at the bottom of the motion, the potential energy due to gravity is zero at this point of the […]

What is the speed of light in a medium of refractive index n? The refractive index can be seen as the factor by which the speed and the wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength […]

Who are some of the major developmental psychologists? Influential developmental psychologists from the 20th century include Urie Bronfenbrenner, Erik Erikson, Sigmund Freud, Jean Piaget, Barbara Rogoff, Esther Thelen, and Lev Vygotsky. Which country is best for psychologists? Top 9 Places to Study Psychology Abroad Austria. Home to the father of psychoanalysis, Sigmund Freud, Austria has […]

How can I check myself for dehydration? Tests for dehydration Gently pinch the skin on your arm or stomach with two fingers so that it makes a “tent” shape. Let the skin go. Check to see if the skin springs back to its normal position in one to three seconds. If the skin is slow […]

How does the axle work? An axle is a rod or shaft that rotates the wheels and supports the weight of your vehicle. Axles are essential components of any vehicle and come in three main types: front, rear, and stub. Let’s break down the types of axle and look at how to choose the right […]

How does burning fossil fuels cause air pollution? When fossil fuels are burned, they release nitrogen oxides into the atmosphere, which contribute to the formation of smog and acid rain. Major sources of nitrogen oxide emissions include: Cars and trucks. Coal-fired power plants. What are the biggest contributors to pollution? Human activities are responsible for […]

How heat energy is transformed into another form? In a thermal power station, heat energy converted into electrical energy. Sun gives light so light energy is converted into solar energy this is also one type of heat energy because heat energy is converted into solar energy. What can heat be transformed into? Thermoelectric materials can […]

What are the similarities between resultant and Equilibrant forces? Resultant is a single force that can replace the effect of a number of forces. “Equilibrant” is a force that is exactly opposite to a resultant. Equilibrant and resultant have equal magnitudes but opposite directions. What is the space diagram? A drawing of a structure that […]