Category: Physics

Is absolute dating better than relative? In relative dating, fossils are dated according to the depth at which they were buried. While in the absolute dating, isotopes of carbon are used for dating fossils. The absolute dating is more precise than relative dating because it tells the exact age of the fossils. What is the […]

What is the relationship between metallic and ionization energy? Metallic character refers to the level of reactivity of a metal. The metallic character increases as you go down a group. Since the ionization energy decreases going down a group (or increases going up a group), the increased ability for metals lower in a group to […]

How can you improve your physical fitness? They keep your heart, lungs, and circulatory system healthy and improve your overall fitness. Examples include brisk walking, jogging, swimming, and biking. Strength, or resistance training, exercises make your muscles stronger. Some examples are lifting weights and using a resistance band. Which exercise will help to cure diabetes? […]

Does Vantablack absorb heat? Vantablack converts light energy over a wide spectral range into heat energy, making it the blackest substance known (99.965% absorption of incident radiation). How much does Vantablack heat up? Vantablack absorbs up to 99.965% of visible light and can be created at 400 °C (752 °F). Can Vantablack boil water? Fun […]

Is it safe to drink deuterium? The breakthrough involves the use of heavy water as a chemical tracer. Made by swapping water’s hydrogen atoms with their heavier relative, deuterium, heavy water looks and tastes like regular water and in small doses (no more than five tablespoons for humans) is safe to drink. How much of […]

What is the truck speed limit in California? 55 miles per hour How fast can trucks stop? At 55 MPH on dry pavement with good brakes, it can take a heavy vehicle about 390 feet to stop. It takes about 4 seconds. total stopping distance: At 55 MPH it will take about 6 seconds to […]

Is CL more electronegative than C? Check out boron: it’s less electronegative than hydrogen [2.0 vs. 2.2]….Carbon is More Electronegative Than You Think. Element Electronegativity (Pauling) F 4.0 [3.98] O 3.4 [3.44] Cl 3.2 [3.16] N 3.0 [3.04] Who is more electronegative N or CL? Nitrogen is more electronegative than Chlorine. FON- Fluorine Oxygen Nitrogen […]

What is the Centre of pressure on an aerofoil? Center of Pressure The center of pressure is the point where the total sum of a pressure field acts on a body. In aerospace, this is the point on the airfoil (or wing) where the resultant vector (of lift and drag) acts. What happens to the […]

Can you hear a plane at 20 000 feet? Yes, depending on the type of plane, which would determine how loud it is and what the frequency of its sound output was, in normal cruising flight. How far can you hear a jet? Aircraft noise is also affected by humidity, air density and cloud cover. […]

What are 3 negative factors that affect mental wellness? Unemployment, redundancy, loss of a business, large investment losses or other financial loss can have a negative impact on your mental health. How does social factors affect mental health? Summary. Most aspects of mental illness and psychological well‐being are influenced by social factors (such as gender, […]