Physics question and answers for August 10, 2023
- Q 6. Why do you think the inside of a car feels so much warmerthan its surroundings on sunny days? a. How can you use the sim totest your ideas? b....
- Q 1. An oil drop with a mass of 2.48 x10^-15kg is balanced betweentwo parallel, horizontal plates 1.7cm apart, maintained at apotential difference of 260 V. The upper plate is positive.Calculate...
- Q Astronomers have argued for long time, what it means that theuniverse is expanding. The observations of redshift and supernovabrightness all agree:galaxies that are further away from the MilkyWay are moving...
- Q Two Earth satellites, A and B, each of mass mmm = 930kgkg , are launched into circular orbits around the Earth's center.Satellite A orbits at an altitude of 4000 kmkm...
- Q What would be a mathematical model for the diffusion constant,D?If the average total displacement in either the x or y directionis 0 for all times, why is the displacement NOT...
- Q The student observed the Moon to be about 12 degrees west of theSun. What (major) phase will the Moon be in one day later?explain
- Q Explain the relationship between milliamperage and exposure timewith radiation production and image receptor exposure.
- Q 1. A 31 kg crate full of fruits is placed on an incline that is17â—¦ below the horizontal. The crate is connected to a spring thatis anchored to a vertical...
- Q A pendulum consists of a ball of mass 3.0 kg on a string oflength 4.0 m. The ball is pulled back untilits center has risen toa height of 0.80 m....
- Q 7. Consider two noninteracting particles in a 1D simple harmonicoscillator (SHO) potential, which has 1-particle spatialwavefunctions ψ n ( x), where n = 0, 1, 2, … (we ignore spin...
- Q Two students use a uniform slab of wood (mass= 10 Kg, length =2.0m) in order to move a delicate but heavy piece of lab equipment(mass = 55 kg). The piece...
- Q 1. Describe the main differences between the inner and outerplanets.2. Describe the surface of Venus?3. What evidence is there ofpast large bodies of water on Mars?4. Describe some of the...
- Q An 80-kg person stands at one end of a 130-kg boat. He thenwalks to the other end of the boat so that the boat moves 80 cmwith respect to the...
- Q Silicon solar cells vs. thin-film solar cells Comparesilicon solar cells with thin-film solar cells in the followingaspects: (1) device structure; (2) working principle; (3)efficiency; and (4) cost. Need informative answer...
- Q what causes fictitious force in a non-rotating referenceframe?
- Q A brass ring of diameter 10.00 cm at 16.4°C is heated andslipped over an aluminum rod of diameter 10.01 cm at 16.4°C. Assumethe average coefficients of linear expansion are constant.(a)...
- Q 7. What is the primary mechanism for maintaininghomeostasis?Select one:a. positive feedbackb. negative feedbackc. intrinsic controld. extrinsic controle. homeostatic controlFeedbackThe correct answer is: negative feedback plzexplain a.b c d e all explain in short answer
- Q Why does tension not appear in the universal wave equation?
- Q How the world has reacted to global climate change akagreenhouse gasses rising. describe with evidence?
- Q A basketball player is 6ft tall, the player was fouledand gets a free shot from the foul line. The player is 15ft awayfrom the basketball net, and the basket is...
- Q A heavy rainstorm dumps 1.0 cm of rain on a city 7 km wide and 8km long in a 2-h period.part a) How many metric tons (1 metricton = 103...
- Q N12R.3Imagine you are the orbital engineer for the first NASAspace shot to Ceres, the largest known asteroid. Ceres’s nearlycircular orbit around the sun has a radius of R = 2.77...
- Q  A chain of many simple sugars is a:Select one:a. monosaccharide.b. polysaccharide.c. disaccharide.d. nucleic acid. e. fatty acid.FeedbackThe correct answer is: polysaccharide.Question 2CompleteMark 0.00 out of 1.00Flag questionQuestion text2. What is/are the major role(s) of thephospholipid bilayer?Select one:a. is the...
- Q A 1 3 -kg mass is attached to a spring with stiffness 4 N/m. Thedamping constant for the system is 2 N-sec/m. The mass is displaced1 2m to the left...
- Q A ball is thrown at an angle of θ0 = 60° above thehorizontal with an initial speed of v0 = 11.5 m/s. Whatwill be the direction of the ball's velocity...
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