The trajectory of a rock thrown from a height with an initial speed of 17.7 m/s is shown in the figure below. Evaluate the magnitude of the gravitational field at the surface of the planet. The planet has no atmosphere. î 45
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Q: A hot water heater in a residential home runs for an average of 2.5 hours per day with a heat energy…
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Q: Calculate Express yo Urms
A: please see image
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- Two resistors are made out of the same material but have different dimensions, as shown in the figures. The current through these two resistors is in the directions shown. What is the ratio of the resistances of the two wires RA/RB ? LL 2L 2L 2L (A) (B) ere to search AeTo heat a room with dimensions width a=3 m, length b=5 m, height h=2,2 m, approximately an electrical power of P=10 W per square meter is needed. At a cost of 0.2 soles per kW.h, how much will it cost per day to use this heater?At a certain location, the solar power per unit area reaching Earth's surface is 200 W/ m^2, averaged over a 24-hour day. If the average power requirement in your home is 3 kW and you can convert solar power to electric power with 10 % efficiency, how large a collector area will you need to meet all your household energy requirements from solar energy? (Will a collector fit in your yard or on your roof? ).
- f... T... O... U... 1... fo... te... _O... d... ne... oh... If-li... s th... Tom: ed i... tion:... eute... hree... ne th... TH... tions... smartermarks.com G CA C A D B E U D A с B E Use the following information to answer the next question Use 7 for Millikan. Use 2 for Rutherford. Use 0 for Thomson. Use 9 for de Broglie. 2. i --> Discovered the nucleus. il --> Found the ratio of the electron. m --> Matter can have wave properties. IV --> Determined the charge of the electron. The statement above is best completed by the answers in row: Row 1 il ¡II İv 0 9 7 2 0 7 9 0 2 0 7 2 0 7 9 3. An electron travels at speed v into a perpendicular magnetic field B. The resulting 오 ratio can be path of the electron in the field is circular. Algebraically the m determined by which of the following. a vB 11 tv AA 2048 00 00 29 G EPIC GAMES EPIC GAMESWhat speed would a 1.0-g paper clip have if it had the same kinetic energy as a molecule at 20 C?what if there is no given finsl velocity?
- it says the answer is 14m/s=v on the computer but i cant get this answer, solution steps would be apperciated.P1B.7 Calculate the escape velocity (the minimum initial velocity that will take an object to in nity) from the surface of a planet of radius R. What is the value for (i) the Earth, R = 6.37 × 106 m, g = 9.81 m s−2, (ii) Mars, R = 3.38 ×106 m, mMars/mEarth = 0.108. At what temperatures do H2, He, and O2 molecules have mean speeds equal to their escape speeds? What proportion of the molecules have enough speed to escape when the temperature is (i) 240 K, (ii) 1500 K? Calculations of this kind are very important in considering the composition of planetary atmospheres.#4?
- An atom of neon has a radius Ne-38. pm and an average speed in the gas phase at 25°C of 350.m/s. Suppose the speed of a neon atom at 25°C has been measured to within 0.10%. Calculate the smallest possible length of box inside of which the atom could be known to be located with certainty. Write your answer as a multiple of "Ne and round it to 2 significant figures. For example, if the smallest box the atom could be in turns out to be 42.0 times the radius of an atom of neon, you would enter "42.Ne" as your answer. [4What is the average kinetic energy of a proton in the center of the sun, where the temperature is 2.0 x 107 K? Express your answer with the appropriate units. Eavg Submit Part B μА Value Request Answer [www] Units ? What is the rms speed of a proton in the center of the sun, where the temperature is 2.0 x 107 K? answer with the appropriate units.