Category: Physics

What is the weakest of the four fundamental forces? Actually, gravity is the weakest of the four fundamental forces. Ordered from strongest to weakest, the forces are 1) the strong nuclear force, 2) the electromagnetic force, 3) the weak nuclear force, and 4) gravity. Because they both have mass, the two protons exert gravitational attraction […]

Does a bullet touch the barrel? Bullets touch the inside of the gun’s barrel during normal operation. There’s rifling inside the barrel that’s supposed to impart spin on the bullet. So the barrel rubs grooves in the bullet (this is how CSI can match a bullet to a gun) but the softer bullet does little […]

Is fire a gas liquid or solid? Most flames are made of hot gas, but some burn so hot they become plasma. The nature of a flame depends on what is being burnt. A candle flame will primarily be a mixture of hot gases (air and vaporised paraffin wax). Can the power go out if […]

At what distance does gravity end? Near the surface of the Earth (sea level), gravity decreases with height such that linear extrapolation would give zero gravity at a height of one half of the Earth’s radius – (9.8 m·s−2 per 3,200 km.) What is SI unit of weight? The SI unit of mass is the […]

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 […]

How do you graph an inequality with two variables? To graph the solution set of an inequality with two variables, first graph the boundary with a dashed or solid line depending on the inequality. If given a strict inequality, use a dashed line for the boundary. If given an inclusive inequality, use a solid line. […]

Can I self refer to an endocrinologist? When to See an Endocrinologist A primary care provider will determine if you need to see an endocrinologist and can write you a referral. The PCP may be able to diagnose and treat your condition themselves, without referring you to specialized care. What tests does an endocrinologist do? […]

What are the similarities and differences between the somatic nervous system and the autonomic nervous system? The somatic nervous system has sensory and motor pathways, whereas the autonomic nervous system only has motor pathways. The autonomic nervous system controls internal organs and glands, while the somatic nervous system controls muscles and movement. What is the […]

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? […]

What are the three key components of Paraverbal communication? Paraverbal communication has 3 key components, which are broken out below. Pitch. Pitch is how high or low your voice goes. Speed or cadence. Cadence is how fast or slow you talk. Tone. This is a combination of factors that set or convey meaning. What are […]