How is drag related to flight?

How is drag related to flight? How does drag affect an aircraft in flight? Drag is the force which delays or slows the forward movement of an airplane through the air. The more surface area exposed to rushing air, the greater the drag. An airplane’s streamlined shape helps it pass through the air more easily. […]

How many comets are there?

How many comets are there? As of November 2021 there are 4584 known comets. However, this represents only a tiny fraction of the total potential comet population, as the reservoir of comet-like bodies in the outer Solar System (in the Oort cloud) is estimated to be one trillion. What are the features of a comet? […]

Do you have to have a control group in an experiment?

Do you have to have a control group in an experiment? A true experiment (a.k.a. a controlled experiment) always includes at least one control group that doesn’t receive the experimental treatment. However, some experiments use a within-subjects design to test treatments without a control group. What is a control group, Scientifically speaking? So, what is […]

Which star has the strongest magnetic field?

Which star has the strongest magnetic field? Neutron stars Neutron stars have the strongest magnetic fields in the universe. Neutron star X-ray binaries are systems consisting of a neutron star and a normal stellar companion. Why do pulsars have strong magnetic fields? The charged particles that exist inside the neutron star are highly conductive, plus […]

What consumers are willing to pay is called?

What consumers are willing to pay is called? In other words, consumer surplus is the difference between what a consumer is willing to pay and what they actually pay for a good or service. Economic surplus refers to two related quantities: consumer surplus and producer surplus. What payment do businesses receive for the goods and […]

Who came after Margaret Thatcher?

Who came after Margaret Thatcher? John Major The Right Honourable Sir John Major KG CH Deputy Michael Heseltine (1995–1997) Preceded by Margaret Thatcher Succeeded by Tony Blair Leader of the Opposition How did Thatcher became the leader of the Conservative Party? Elected Leader The 1975 Conservative Party leadership election was held in February 1975. The […]

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