What is the initial potential energy? At the initial position, the object has “potential energy”, which is energy associated with a certain position. Potential energy is assigned the letter U. The unit of potential energy is the same as the unit for work and kinetic energy, the Joule (J). What are the initial and final […]
How do antagonistic muscles work?
How do antagonistic muscles work? Muscles transfer force to bones through tendons. They move our bones and associated body parts by pulling on them – this process is called muscle contraction. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens. … What is an antagonistic? : showing dislike or […]
What happens when two tectonic plates bump into each other?
What happens when two tectonic plates bump into each other? If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, a process known as subduction. The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands […]
What are the three ways to measure exercise intensity?
What are the three ways to measure exercise intensity? When following an aerobic exercise program, there are three main ways to measure your exercise intensity: Target Heart Rate (THR), Rate of Perceived Exertion (RPE) and the Talk Test. This guide will examine each of these three measures in detail so you can choose which works […]
Which of the following is a key characteristic of borderline personality disorder?
Which of the following is a key characteristic of borderline personality disorder? With borderline personality disorder, you have an intense fear of abandonment or instability, and you may have difficulty tolerating being alone. Yet inappropriate anger, impulsiveness and frequent mood swings may push others away, even though you want to have loving and lasting relationships. […]
Is Octane a gas at room temperature?
Is Octane a gas at room temperature? It exists as a gas at standard temperature and pressure. Octane is a much larger molecule with a molecular weight of 114 g/mol. It exists as a liquid at standard temperature and pressure. All gasses at room temperature and atmospheric pressure are comprised of small molecular weight molecules. […]
Why does vapor pressure increase with temperature?
Why does vapor pressure increase with temperature? As the temperature of a liquid increases, the kinetic energy of its molecules also increases and as the kinetic energy of the molecules increases, the number of molecules transitioning into a vapor also increases, thereby increasing the vapor pressure. Which would you expect to have the highest vapor […]
Why is Milky Way spiral?
Why is Milky Way spiral? The magnetic field alignment with the star formation implies that the gravitational forces that created the galaxy’s spiral shape is also compressing the magnetic field. The alignment supports the leading theory of how the arms are forced into their spiral shape known as “density wave theory.” Do we live in […]
What are signs of a bad engine coil?
What are signs of a bad engine coil? Ignition Coil Problems, Symptoms and Solutions Engine misfires. Rough idle. A decrease in car power, especially in acceleration. Poor fuel economy. Difficulty starting the engine. Check engine light is on. Exhaust backfiring. Increased hydrocarbon emissions. What is the switching device on an electronic ignition system? Electronic Ignition […]
What increases the rate of energy transfer?
What increases the rate of energy transfer? The rate at which an object transfers energy by heating depends on: the surface area, volume and material of the object and the nature of the surface with which the object is in contact. The bigger the temperature difference between a body and its surroundings, the faster the […]