Why water has high boiling point and freezing point? So despite its small molecular weight, water has an incredibly big boiling point. This is because water requires more energy to break its hydrogen bonds before it can then begin to boil. The same concept is applied to freezing point as well, as seen in the […]
What are the types of athletic?
What are the types of athletic? Athletics is an exclusive collection of sporting events that involve competitive running, jumping, throwing, and walking. The most common types of athletics competitions are track and field, road running, cross country running, and race walking. What do you mean by athletic? adjective. physically active and strong; good at athletics […]
Can you brake and accelerate at the same time?
Can you brake and accelerate at the same time? No it is not particularly bad mechanically for the car to press both brake and accelerator simultaneously. This is a technique used in 2 wheel drive vehicles in competition driving. No it is not particularly bad mechanically for the car to press both brake and accelerator […]
Why does helium make things float?
Why does helium make things float? Helium floats because it is buoyant; its molecules are lighter than the nitrogen and oxygen molecules of our atmosphere and so they rise above it. In the car, it’s the air molecules that are actually getting pulled and pushed around by gravity as the result of the accelerating frame. […]
Do animals eat seeds?
Do animals eat seeds? A new study finds that large animals eat not only large seeds but small ones too – helping with seed dispersal. If they become extinct, this could have an impact on overall biodiversity in an ecosystem. Scientists have long thought that small animals eat small seeds and large animals eat large […]
Does material affect friction?
Does material affect friction? The frictional force does not depend on mass or surface area. All that really matters is the types of materials that are in contact. When everything is stationary, the objects feel static friction. When they are moving, kinetic friction takes over. What 2 factors do not affect friction? Friction does not […]
What is a mass balance equation?
What is a mass balance equation? Mass-Balance Equations. ➢ Mass-balance equations relate the equilibrium concentrations of various species in a solution to one another and to the analytical concentrations of the various solutes. ➢ These equations are a direct result of the conservation of mass and. moles. What does it mean to tare a balance? […]
Do babies need to wear life jackets on boats?
Do babies need to wear life jackets on boats? Under California law, every child under 13 years of age on a moving recreational vessel of any length must wear a Coast Guard-approved life jacket in serviceable condition and of a type and size appropriate for the conditions and the activity. Does a throwable count as […]
How can we protect Earth from solar activity?
How can we protect Earth from solar activity? Earth’s magnetosphere, the first layer of protection against solar flares, whisks away the flare’s charged particles. Due to the effects of the solar wind, the magnetosphere has a compressed, bulbous side that faces the sun, a dip near Earth’s poles and a flowing tail extending away from […]