Physics

Which of the following planets has a diameter that is larger than the diameter of the Earth?
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If several forces are exerted on a system, calculate the work done by each force, then multiply the results.Question 4 options:TrueFalse
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A 200 kg golf cart strikes a 1500 kg car with 1000N of force, bringing its velocity from 5 m/s to 0 m/s in 1 second. How much force did the car apply to the golf cart?Question 6 options:100 N1000 N1500 NNot enough information has been given to solve the problem
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A type of Lead (Pb) ion has a + 4 oxidation number. Sulfur (S) has a 2 oxidation number. What would be the chemical formula for the compound of these two elements?
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The structure of a main sequence star like our sun can hold for a long time becauseA. Gravitation fore is counterbalanced by thermal expansion forces B. The immense volume of matter C. The rotational force
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Are plants carnivoresTure or False
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Are you willing to do a project?
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What differentiates the two types of human cloning?
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What is the ph of ammonia
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Has anyone read the book Third level
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A boy throws a ball up into the air with a speed of 12.3 m/s. The ball has amass of 0.25 kg. How much gravitational potential energy will the ball have atthe top of its flight? (Assume there is no air resistance.)A. 13,5 JB. 20.23C. 18.9 JD. 12.13
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If a magnet is cut into unequal size pieces, how many north and south poles will each of the pieces have?
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A Sense of Proportion: Saturn is about 60,000 km in radius, and its rings are only about 0.01 km thick with ripples 100m high. Design a really big model with Saturn 60 inches in radius (10 feet in diameter). How thick must the rings be in your model and how high can the ripples be
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What are global wind patterns called?
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Science Will give brainless and 22 points
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The telescopes on some commercial surveillance satellites can resolve objects on the ground as small as 89 cm across (see Google Earth), and the telescopes on military surveillance satellites reportedly can resolve objects as small as 13 cm across. Assume first that object resolution is determined entirely by Rayleigh's criterion and is not degraded by turbulence in the atmosphere. Also assume that the satellites are at a typical altitude of 414 km and that the wavelength of visible light is 542 nm. What would be the required diameter of the telescope aperture for (a) 89 cm resolution and (b) 13 cm resolution? (c) Now, considering that turbulence is certain to degrade resolution and that the aperture diameter of the Hubble Space Telescope is 2.4 m, what can you say about the answer to (b), i.e. is the military surveillance resolution accomplished?
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Fish are able to acquire the oxygen needed for respiration under water using gills. This is an example of which type of adaptation?
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PLEASE HELP ME!A student notices that when calcium chloride is placed in water, the test tube feels warm. What kind of reaction has taken place?A. Combustion ReactionB. Endothermic ReactionC. Exothermic ReactionD. Endergonic Reaction
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A capoeira muito mais que uma luta, por isso os campeonatos internos tem o objetivo de: 1 ponto Testar a fora dos participantes. Criar lutadores profissionais. Avaliar o indivduo como um todo. Competir quem faz mais golpes.
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can someone please help with this
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Which elements is malleable and ductile
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A girl is bouncing on a trampoline where is her gravitational potential energy a maximum and where is her kinetic energy maximum
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Which of the following is a claim of special relativity?A. All laws of physics apply to frames of reference that are changingspeed.B. All laws of physics apply to frames of reference that areacceleratingC. All laws of physics apply to frames of reference that are notaccelerating.D. All laws of physics apply to frames of reference that start fromrest.SUSM
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A 31 g block of ice is cooled to -76C. Itis added to 592 g of water in an 75 g coppercalorimeter at a temperature of 21C.Find the final temperature. The specificheat of copper is 387 J/kg C and of ice is2090 J/kg . C. The latent heat of fusion ofwater is 3.33 x 10 J/kg and its specific heatis 4186 J/kg C.Answer in units of C.
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