Category: Physics

How do you calculate shear stress in a shaft? Shear Stress in Shafts Shear Stress in a Solid Shaft Equation. When torque or twisitn loading is applied to a cylindrical shaft, a shearing stress is applied to the shaft. The shear stress in a solid cylindrical shaft at a given location: σ = T r […]

What are three different types of precipitation? The most common types of precipitation are rain, hail, and snow. What is the major form of precipitation? There are many different types of precipitation —rain, snow, hail, and sleet for example—yet they all have a few things in common. They all come from clouds. They are all […]

What are the 2 biological effects of ionizing radiation? The biological effects of ionizing radiation are due to two effects it has on cells: interference with cell reproduction, and destruction of cell function. Which radiation is responsible for oncogenic transformation? Class I PI3K consists of four isoforms, PI3K α, β, γ, and δ, each with […]

Why is velocity zero at pitot tube? At the open end of the pitot tube the velocity of the fluid becomes zero. But that should result in accumulation of liquid inside the pipe which is not possible. Why is stagnation point important? The stagnation point represents the location of the start of the leading edge […]

How many volts will it take to push 1 amp? Answer. Answer: Resistance: V = I R (volts = amps * ohm). A 1 ohm resistor will lose 1 volt when conducting 1 amp of current; a 10 ohm resistor will drop 10 volts when conducting one amp. What is the resistance of a 7.5 […]

Does light travel faster in air or glass? Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water. How does a black hole attract light if it […]

How can I see my house from satellite? To see a satellite view of your house: Use the search field in the top left to enter your street address. You’ll see your address in the search results. Zoom in closer to get a detailed overhead satellite view of your home. You can drag the man […]

Who gave wave theory of light? Christiaan Huygens What did Newton do with two prisms? Intrigued by the change in shape, Newton cut a variety of holes of different sizes and shapes, but no matter the shape of the original beam, the refracted light turned more oblong. Newton also placed a second prism of the […]

What is the measure of the radius of the circle? Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of […]

What happens when the cross product of two vectors is 0? If two vectors have the same direction or have the exact opposite direction from one another (i.e., they are not linearly independent), or if either one has zero length, then their cross product is zero. When two non-zero vectors A and B are perpendicular […]