Category: Physics

What are the two major types of seismic waves? There are two broad classes of seismic waves: body waves and surface waves. Body waves travel within the body of Earth. They include P, or primary, waves and S, or secondary, waves. What are the slowest seismic waves? The slowest waves, surface waves, arrive last. They […]

Are nitriles always at the end? nitrile shows a -CN group at the end of the chain. As with the previous examples involving acids and acid derivatives, don’t forget that the carbon in the -CN group counts as part of the chain. The old name for this would have been methyl cyanide. How do you […]

Which Great Lake is the most dangerous? Lake Michigan Are there sharks in Lake Erie? There have been reports of dead sharks apparently washed up on the beaches in Lake Huron, Erie and Ontario, but there’s no way to tell whether they came on their own or were planted there as pranks. What is the […]

What happens if I never stretch? Stretching keeps the muscles flexible, strong, and healthy, and we need that flexibility to maintain a range of motion in the joints. Without it, the muscles shorten and become tight. Then, when you call on the muscles for activity, they are weak and unable to extend all the way. […]

Will wind ever stop blowing? Wind is the atmosphere trying to reach a pressure equilibrium. If the pressure is equalized, there will be no more wind. Which is rare on our planet as different areas are always heating and cooling. Hotter air is lower pressure and cooler air is higher pressure. Where on earth is […]

What is the percentage error in the surface area of a sphere? SΔS=r2Δr=2×4=8% Was this answer helpful? What is percentage error in sphere? Volume of the sphere is V=43πr3. As per the rule for combination of errors for exponents ΔVV=3Δrr. =3 x 0.015. ΔVV=0.045. Percentage error =ΔVV×100=0.045×100=4.5% What is the error in volume? To calculate […]

What happens if mass and velocity are doubled? Mass and velocity are both directly proportional to the momentum. If you increase either mass or velocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum. What happens to the kinetic energy when the mass and velocity is […]

What are the types of screw threads? Clamp screws come in many forms. There are Standard threads, ACME threads, Buttress threads, and Square threads. Each of these threads may be used in clamps and vises for different reasons. What is the use of screw? The most common uses of screws are to hold objects together […]

Which component of skill-related fitness would most help a shot putter increase the distance of their throw? power What factors need to be considered when one is designing a resistance training program? What are the seven aspects to consider when designing a resistance training program? Needs analysis, exercise selection, training frequency, exercise order, training load […]

What is the most powerful erosional agent? Water Erosion Water is the most important erosional agent and erodes most commonly as running water in streams. However, water in all its forms is erosional. Raindrops (especially in dry environments) create splash erosion that moves tiny particles of soil. What is the concept of graded stream? A […]