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As a rocket burns fuel, it expels exhaust gases. When the gases are forced out of the rocket, they exert an equal and opposite force on the rocket. A rocket can rise into the air because the gases it expels with a downward force exert an equal but opposite force on the rocket. As long as this upward pushing force, called thrust, is greater than the downward pull of gravity, there is a net force in the upward direction. As a result, the rocket accelerates upwards.
-information from Prentice Hall, Science Explorer: Physical Science
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Explain why the majority of genes in an organism occur in pairs.?
Genes come in pairs because Genes are in chromosomes and chromosomes come in pairs as well.
Do the muscle pull the structure or push them explain briefly?
Muscle cells can only contract, thus pull is their only function. Try it, its true. That's why most muscles come in pairs.
What pairs with what in base pairing?
Cytosine pairs with Guanine Adenine Pairs with Thymine
Which base in RNA pairs with adeine?
Uracil. There are five bases in RNA/DNA. They are Adenine, Thymine, Guanine, Cytosine and Uracil. In DNA: Adenine pairs with Thymine, and Guanine pairs with Cytosine In RNA: Adenine pairs with Uracil and Guanine pairs with Cytosine
How did Watson and cricks model explain the basis for chargaffs rules?
Watson and Cricks model, the double helix, showed that the base pairs bind together in the centre of the DNA molecule. Therefore because the bases are found in pairs, there must be equal amounts of each. This explained Chargaff's rules - the number of guanine is equal to the number of cytosine and that the number of thymine is equal to the number of adenine - because they are found as pairs.
How do action reaction pairs explain how a rocket lifts off?
Rocket emits particles backward with great force. This means that there is also a force in the other direction, which pushes the rocket forward. Also apparent from conservation of momentum.
How is thrust produced in a rocket?
Rockets fly by producing thrust.Thrust is the force that moves the rocket foroward.Thrust occurs because forces always come in pairs.
What is pairs ice skating?
its where two skaters skate together, most of the time its a male and a female, and the male lifts the girl up and they do lifts and routines together. if you live in the UK watch dancing on ice but if you live in the US watch skating with the stars and that's pairs skating :)
What is the difference between pairs and ice dance?
There are two categories in which a male and a female team compete together. In the 'pairs' event, the skaters perform things such as jumps (throws and side by side), overhead lifts, and spins (in unison and together). The ladies that do pairs have a shorter dresses (about mid-thigh). Ice dance is very similar to ballroom dancing. There are no jumps, no overhead lifts (other lifts are permitted), and only spins together. The ladies that ice dance wear longer dresses (past knee length).
Explain how to find factor pairs of numbers?
84 factor is
Is a trapezoid a parallelogram explain why or why not?
It is not because it does not have two pairs of parallel sides.
What does the vsepr theory explain for covalent bonds?
VSEPR theory explains the geometry around a central atom in terms of repulsion beween pairs of electrons, pairs involved in bonding and lone pairs.
Explain why a square is a parallelogram?
Because it is a 4 sided quadrilateral with with 2 pairs of parallel sides
Which one is safer pairs skating or figure skating?
Pairs skating fits under the category of the sport 'figure skating'. In figure skating, there are 3 main categories that compete: singles, pairs, and ice dance. There's also synchronized skating, which doesn't generally compete at the same events as the others. Out of singles, pairs, and ice dance, pairs is the most dangerous. Basically everything is done with your partner, including throws, side-by-side jumps, spins, and lifts.
How does the VSEPR theory explain molecular shape?
Electron pairs repelling each other push atoms apart.
Can a rectangle be a rhombus explain it?
No. A rectangle has two pairs of equal sides. A rhombus has all four sides equal.
Explain why the majority of genes in an organism occur in pairs.?
Genes come in pairs because Genes are in chromosomes and chromosomes come in pairs as well.
