Are all projectiles parabolic? Projectile motion is parabolic because the vertical position of the object is influenced only by a constant acceleration, (if constant drag etc. is also assumed) and also because horizontal velocity is generally constant. Why are parabolas important in real life? The parabola has many important applications, from the design of automobile […]
What word is used to refer to a group of organ systems working together?
What word is used to refer to a group of organ systems working together? organism What word is used to refer to a group of organ systems working together organism cell tissue organ? The answer is most likely organism. What three organ systems must work together to bring oxygen to the body cells? For example, […]
Why is a sit up a second class lever?
Why is a sit up a second class lever? Second-Class Levers In a second-class lever, the resistance lies between the fulcrum and the force, as in a wheelbarrow. Exercises that require plantarflexing the ankle, such as seated or standing calf raises, employ a second-class lever. What’s an example of a second class lever? In a […]
What are the hardest airports to land at?
What are the hardest airports to land at? In no particular order, we’ve put together a list of the 25 most dangerous airports in the world that are every pilot’s worst nightmare! Courchevel Airport, France. Princess Juliana Airport, Caribbean. Matekane Air Strip, Lesotho. Tioman Island Airport, Malaysia. Juancho Airport, Caribbean. Gibraltar Airport. What is the […]
What are the rules for cyclists?
What are the rules for cyclists? You should: keep both hands on the handlebars except when signalling or changing gear. keep both feet on the pedals. never ride more than two abreast, and ride in single file on narrow or busy roads or when riding round bends. not ride close behind another vehicle. Do road […]
What is the similarities between DC generator and DC motor?
What is the similarities between DC generator and DC motor? The similarity between d.c motor and a.c. generator is that they both are electrical machines which work based on the principle of Electromagnetic Induction. Why slip rings are used in AC generators? The function of slip ring in an AC generator is that these are […]
Should I buy a 10 year old hybrid?
Does frequency change power?
Does frequency change power? Frequency of the system will vary as load and generation change. Increasing the mechanical input power to a synchronous generator will not greatly affect the system frequency but will produce more electric power from that unit. Can I use a 60 Hz device in a 50 Hz power frequency? Electrical machines […]
What is real and apparent Expansivity?
What is real and apparent Expansivity? The real (or absolute) expansivity of a liquid is the fraction of its volume by which it expands per kelvin rise in temperature. The apparent expansivity of a liquid is the fraction of its volume by which the liquid appears to expand per kelvin rise in temperature when heated […]
When replacing a head gasket What should be cleaned?
When replacing a head gasket What should be cleaned? Cleaning the tops off is the corect way to do it. Carbon retains heat, and the pistons and cylinders should be as clean as you can get them before reassembly. If you’re concerned about any of that gunk having gotten into the engine’s pan, you can […]