What is the mass number and charge of the emitted positron? This positron can be called a beta plus (β+) particle – this process is known as positron emission. A positron is the antimatter version of an electron. It has the same relative mass of zero, so its mass number is zero, but a +1 […]
Why is my diastolic pressure high?
Why is my diastolic pressure high? A: A high diastolic blood pressure (80 mm Hg or higher) that stays high over time means you have high blood pressure, or hypertension, even when systolic blood pressure is normal. Causes of diastolic high blood pressure include both lifestyle factors and genetics, but the disease is multifactorial. Why […]
What is the purpose of dark matter?
What is the purpose of dark matter? [+] Dark matter is the most mysterious, non-interacting substance in the Universe. Its gravitational effects are necessary to explain the rotation of galaxies, the motions of clusters, and the largest scale-structure in the entire Universe. Can we see dark matter? Although we cannot see dark matter and we […]
What frequencies are dangerous?
What frequencies are dangerous? The most restrictive limits on whole-body exposure are in the frequency range of 30-300 MHz where the RF energy is absorbed most efficiently when the whole body is exposed. For devices that only expose part of the body, such as mobile phones, different exposure limits are specified. What is the range […]
How much power does a 5kW solar system produce per day?
How much power does a 5kW solar system produce per day? 5kW Solar System Details: Produces 5,000 watts of DC (direct current) power. Requires up to 400 square feet of space to produce an estimated 350 to 850 kWh (kilowatt hours) of AC (alternating current) power monthly. Is 5 kW solar enough? On average, a […]
How does experience affect our perception?
How does experience affect our perception? Past Experiences and Education What you perceive is strongly influenced by your past experience, education, culture, values and other factors. All these influences predispose you to pay particular attention to certain information and to organize and interpret the information in certain ways. Has any of your past experiences affect […]
Is heat equal to change in enthalpy?
Is heat equal to change in enthalpy? At constant volume, the heat of reaction is equal to the change in the internal energy of the system. At constant pressure, the heat of reaction is equal to the enthalpy change of the system. What is flow and non flow process in thermodynamics? Non flow process: It […]
How do you calculate perihelion distance?
How do you calculate perihelion distance? The perihelion distance P=a(1−e) and the aphelion distance A=a(1+e) where e=0.875 is the eccentricity. This gives a perihelion distance of 2.375AU and an aphelion distance of 35.625AU. Is Kepler’s third law correct? Kepler’s third law provides an accurate description of the period and distance for a planet’s orbits about […]
Is SF6 bad for the environment?
Is SF6 bad for the environment? It is a potent greenhouse gas with a high global warming potential, and its concentration in the earth atmosphere is rapidly increasing. During its working cycle, SF6 decomposes under electrical stress, forming toxic byproducts that are a health threat for working personnel in the event of exposure. Is SF6 […]
What is Loop rule?
What is Loop rule? Kirchhoff’s loop rule states that the sum of all the electric potential differences around a loop is zero. It is also sometimes called Kirchhoff’s voltage law or Kirchhoff’s second law. The rule is an application of the conservation of energy in terms of electric potential difference, Δ V \Delta V ΔV […]