Category: Physics

Why is derating necessary? Derating increases the margin of safety between part design limits and applied stresses, thereby providing extra protection for the part. By applying derating in an electrical or electronic component, its degradation rate is reduced. The reliability and life expectancy are improved. How do you calculate derating current? Selection of cable – […]

How do you find a slope of a volume? To find the volume of the sloped area use the formula: the square of c = the square of a + the square of b (where c is the length of the slope, a is the depth. How do you calculate excavation volume and slope? The […]

What is the formula for change in internal energy? The first law of thermodynamics states that the change in internal energy of a system equals the net heat transfer into the system minus the net work done by the system. In equation form, the first law of thermodynamics is ΔU = Q − W. Here […]

What are the top 10 landforms? The Grand Canyon. The Mississippi River. Death Valley. Appalachian Mountains. Kilauea Volcano. The Everglades. Carlsbad Caverns. The Rocky Mountains. What makes landforms unique and amazing? Different types of landforms include mountains, hills, canyons, plateaus, valleys, deserts, volcanoes, and even underwater features such as mid-ocean ridges and basins. The physical […]

What are some examples of innate behavior? The following behaviors are examples of innate behaviors: Web making in spiders. Nest building in birds. Fighting among male stickleback fish. Cocoon spinning in insects such as moths. Swimming in dolphins and other aquatic species. Are behaviors learned or inherited? Behavior is determined by a combination of inherited […]

What is the general equation of a sine function with an amplitude of 2 A period of 4pi? Use the equation period=2pi/IbI to solve for the absolute value of b and plug it into the equation. What is the amplitude of Y sin4x? Explanation: The amplitude and period of y = a sin (bx + […]

What does a dermatologist do on first visit? Dermatologists need to know about health problems and medications that could impact your skin. From there, your doctor will examine the problem that brought you to the appointment. They will also likely perform a full-body skin check to look for any troublesome moles or signs of other […]

How do you balance a pendulum clock? Give the pendulum a slight sideways push to start it swinging. Listen to the tick –tock. The tick and the tock should sound evenly spaced, if so the clock is said to be “in beat” or balanced. If not, the crutch at the back of the movement will […]

Are force and mass are directly proportional? Newton’s second law of motion (also known as the force law ) states that… net force is directly proportional to mass when acceleration is constant. … Is weight proportional to gravity? Mass is a measure of how much material is in an object, but weight is a measure […]

Does Google Maps work on the water? First off, you can use Google Maps, including its satellite view, to take a look at an area you plan to be boating. You can also use sailing tools built around Google Maps, such as distance calculator Sea Seek, which uses Google Maps to compute the rough length […]