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1- the kinetic energy of a pendulum is greatestA- when its potential energy is greastestB- at the bottom of its swingC- at the top of its swingD- when its total energy is greatest2- which of the following four objectshas the greatest kinetic energy?a- an object of a mass mmoving with speed 4vb- an object of a mass 3m moving withspeed 2vc- an object of a mass 4m movingwith speed vd- an object of a mass 2m movingwith speed 3ve- none of these, all four objectshave equal kinectic energy3- work requiresa- motionb- zero momentumc- zero net forced- force perpendicular to the directionof motion
4- if u lift a 10-N weight vertically10m above the ground you area- doing work against gravityb- doing work against inertiac- doing work against frictiond- doing none of these5- a child swings on a 14m rope. Thehighest point of her swing is 3.0m above the ground. When the childat the lowest point 1.0m above the ground , her speed isgreatest.A- trueB- false6-mechanical energy
a- is always the total energy ofa system.b- is the sum of the energies of motionand positionc- is always conservedd- necessarily involves gravitational potential energy7- the average adult radiates heatenergy at the same rate asa- a 100W light bulbb- a 10W light bulbc- A 100 kW light bulbd- none of these8- the largest reserve of energy in theU.S. is in the form ofa- oil b-coal c-natural gas d-nuclear
9- Temperature is a relative measure ofa- latent heat b- hotness andcoldness c- internal energy d- specificheat
10- the average kinetic energy of the molecules in a gas is ameasure ofa- volume b- density c-temperature d- heat content
11- a change of phase takes place at a constanta- volume b- temperature c- heat d-pressure
Assume that a dihybrid F2 ratio, resulting from epistasis, was 9:3:4. If a double heterozygote was crossed with the fully recessive type, what phenotypic ratio is expected among the offspring?
Write a brief note on Cystic Fibrosis, including its etiology (cause), symptoms, and possible management approach.
question 1. which direction can small molecules such as sugars and amino acids are transported?question 2. how does the
the students involved in the iit heritage garden on campus are preparing to plan for the spring planting season. some
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plants respond to challenges by bacterial and fungal pathogens in a variety of ways. explain the difference between
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If a woman who is red-green color-blind, an X-linked trait, married a man with normal vision, what phenotypic ratios would you expect to observe in their children?
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