Category: Physics

What is the main purpose of the National Electrical Code? The NEC (the National Fire Protection Association’s NFPA 70) is a widely-adopted model code for the installation of electrical components and systems. Its purpose is to safeguard persons and property from hazards arising from the use of electricity (NEC 90.1(A)). What are the two basic […]

What is the fastest plane in the world 2020? The Lockheed SR-71 Blackbird is the fastest jet aircraft in the world, reaching speeds of Mach 3.3–that’s more than 3,500 kph (2,100 mph) and almost four times as fast as the average cruising speed of a commercial airliner. Key elements of the SR-71’s design made this […]

What is the difference or similarity of calories and BTUS? A heating calorie is defined as the amount of heat required to raise one gram of water by one degree Celsius. A Btu, or British Thermal Unit, is roughly the amount of heat produced when you burn one match. Technically, a Btu is the amount […]

Are 10mm and 3/8 the same? 8mm = 5/16 inch. 9mm = almost 3/8 inch. 10mm = just over 3/8 inch. 11mm = almost 7/16 inch. How many mm is 3 and 3 16? Fractional Inches to Decimal Inches and Metric Millimeters Inches Metric Fractional Decimal mm . 0.1772 4.5000 3/16 0.1875 4.7625 . 0.1969 […]

What is used to measure mass? Scientists measure mass with a balance, such as a triple beam balance or electronic balance. In science, the volume of a liquid might be measured with a graduated cylinder. What should be weight as per height? Weight and height guide chart Height Weight 5ft 2″ (62″) 104 to 131 […]

Who was Adam to God? The man called Adam was created when God “formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul” (Genesis 2:7). Therefore, Adam was created from the soil, which is actually reflected in his name. Who is Eve […]

What is momentum in physics definition? Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton’s second law of motion states that the time rate of change of momentum is equal to the force acting on the particle. What is […]

What is the mass on each planet? Planetary Fact Sheet – Metric MERCURY EARTH Mass (1024kg) 0.330 5.97 Diameter (km) 4879 12,756 Density (kg/m3) 5427 5514 Gravity (m/s2) 3.7 9.8 How long do fart smells last? Though farts come out with varying velocities, we don’t typically smell them for about 10-15 seconds after letting them […]

What is mean by free fall a ball is dropped from the roof of a building it takes 10 seconds to reach the ground find the height of the building? A ball is dropped from the roof of a building. It takes 10 seconds to reach the ground. While considering an object in a freefall, […]

Could the UK have a major earthquake? The British Geological Survey said: “A magnitude 4 earthquake happens in Britain roughly every two years. We experience a magnitude 5 roughly every 10–20 years. Research suggests that the largest possible earthquake in the UK is around 6.5.” What is the safest place on earth? European countries dominate […]