Category: Physics

Does electricity flow through the wire around the core? An electromagnet is made by sending electric current through an insulated wire wrapped around the iron core. How does the number of winds or wire around a core affect the strength of the magnetism? Electricity gets in more, because the more winds equals more magnetism. Which […]

What causes the centrifugal force effect? chk – Centrifugal Force Caused by Inertia. When you swing an object around on a string or rope, the object will pull outward on the rope. The force you feel is called the centrifugal force and is caused by the inertia of the object, where it seeks to follow […]

What speed is 4000 rpm? 80 mph = 4000 RPM. How do you measure driveshaft speed? To check for critical speed, calculate this equation: Top speed x 336 (a constant) x rear ratio (like 4.10), then divide it by the tire height (28” tall tire). Here is an example: Top speed is 160mph x 336 […]

What are the 2 types of machines? There are basically six types of machine: The inclined plane. – used for raising a load by means of a smaller applied force. The lever. – involves a load, a fulcrum and an applied force. The pulley. – In simplest form it changes the direction of a force […]

Is the angle of incidence is 30 What is the value of the angle of reflection? The angle between the mirror and the incident ray is 30 degrees. The sum of the angle of incidence and this angle (30) makes a right angle. So, the angle of incidence is 90 – 30 = 60 degrees. […]

What is electrostatic screening length? Within the classical mean-field theories that explain screening and interactions in dilute electrolytes,(1) the Debye length, λD, is the yardstick against which the reach of electrostatic interactions in solution is typically measured. What is screening in cable? The screen is often directly placed over the insulated cores or pairs inside […]

Why are river basins important to humans? Why Basins Are Important Basins are vital to human existence, since they provide clean water for drinking; water for growing food; and water to nourish plant life, which provides the oxygen people breathe. What is the difference between river basin and water divide? A river basin collects water […]

What is the true bond angle of H2O? In lecture, Lavelle had mentioned that the bond angle for H2O is (104.5) less than 109.5. What is the bond angle between the oxygen atoms in the carbon dioxide molecule? 180 degrees What shape is SiS2? A.P. Chem Chapter 10 and 11 (Bonding) Review Concentration A B […]

How do you say thank you in a humble way? Other ways to say thank you in any occasion I appreciate what you did. Thank you for thinking of me. Thank you for your time today. I value and respect your opinion. I am so thankful for what you did. I wanted to take the […]

Why does a snowflake have 6 sides? All snowflakes contain six sides or points owing to the way in which they form. The molecules in ice crystals join to one another in a hexagonal structure, an arrangement which allows water molecules – each with one oxygen and two hydrogen atoms – to form together in […]