Category: Physics

How do you remove a stuck metal lid? Warm water Alternatively, you could fill a bowl with hot water and place the jar upside down in the water, leaving it there for around 30 seconds. The hot water will help expand the metal lid (more so than the glass), making it easier to remove. Does […]

What is SI unit of sound? The SI unit of sound pressure is pascal (Pa). Decibel (dB) is a relative unit of measurement widely used in acoustics. However, the dB is not a unit in the sense that a metre is a unit of length. The decibel is a logarithmic unit used to describe a […]

What happens to the particles when a liquid boils? Boiling. If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. As the liquid gets warmer more particles have sufficient energy to escape from the liquid. Eventually even particles in the middle of the liquid form bubbles […]

How many seconds does it take to stop a car going 60 mph? 4.5 seconds How long does it take to stop a car at 55 mph? Only then does the car begin to slow. On dry pavement that takes 4 1/2 seconds, traveling another 144 feet, but if it’s wet, you’ll travel 183 feet. […]

How do you use a ray diagram? 1. Pick a point on the top of the object and draw two incident rays traveling towards the mirror. Using a straight edge, accurately draw one ray so that it passes exactly through the focal point on the way to the mirror. Draw the second ray such that […]

What is an inertial frame of reference in physics? Within the realm of Newtonian mechanics, an inertial frame of reference, or inertial reference frame, is one in which Newton’s first law of motion is valid. An inertial frame of reference is one in which the motion of a particle not subject to forces is in […]

Where do you look for blind spots? Blind spots are the areas to the sides of your car that can’t be seen in your rear mirror or side mirrors- to make sure these spots are clear before changing lanes, you’ll have to physically turn around and look to see what kind of crazy stuff is […]

Which brand of UPS is the best? The best uninterruptible power supply will safeguard your PC from unexpected power loss and surges….The best UPS for gaming PCs Cyberpower CP1500PFCLCD. The best UPS for most gamers. Cyberpower EC650LCD. The best UPS for your network and accessories. APC BE600M1. Which UPS is best for home? Best inverters […]

What is the meaning of Spacelike? not comparable What do you mean by Lorentz transformation? In physics, the Lorentz transformations are a six-parameter family of linear transformations from a coordinate frame in spacetime to another frame that moves at a constant velocity relative to the former. The transformations are named after the Dutch physicist Hendrik […]

What are the 3 things that an internal combustion engine needs to run? Beyond the combustion stroke, which pushes the piston down from the top of the cylinder, there are three other strokes: intake, compression, and exhaust. Engines need air (namely oxygen) to burn fuel. How do you adjust a carburetor? Carb Quick Guide Verify […]