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A: Negative sign is assigned using Cartesian cordinate system.
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A: The given volume of the Earth is
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A: Given : Length (L) = 14 miles Width (W) = 48 miles 1 mile = 1609 m
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A: Name two length units that are longer than a metre. What is their relationship to the metre?
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A: the question is that--- Rank the following quantities in order from the largest to the smallest: (a)…
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A: Original length of cube (L) = 1 cm Scaled up length of cube (L') = 10 cm
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A: An acre-foot is 1 foot multiplied by 1 acre. 1 acre is equal to about 4 × 104 ft2.
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A: Given Area of the lawn A1=110 m2Volume of snow V=8.25 m3
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- As the very first rudiment of climatology, estimate the temperature of Earth. Assume it is a perfect sphere and its temperature is uniform. Ignore the greenhouse effect. Thermal radiation from the Sun has an intensity (the "solar constant" S) of about 1370 W/m2 at the radius of Earth's orbit. (a) Assuming the Sun's rays are parallel, what area must S be multiplied by to get the total radiation intercepted by Earth? It will be easiest to answer in tens of Earth's radius, R. (b) Assume that Earth reflects about 30% of the solar energy it intercepts. In other words, Earth has an albedo with a value of A=0.3 . In terms of S, and R, what is the rate at which Earth absorbs energy from the Sun? (c) Find the temperature at which Earth radiates energy at the same rate. Assume that at the infrared wavelengths where it radiates, the emissivity e is 1. Does your result show that the greenhouse effect is important? (d) How does your answer depend on the area of Earth?The energy released from condensation in thunderstorms can be very large. Calculate the energy released into the atmosphere for a small storm of radius 1 km, assuming that 1.0 cm of rain is precipitated uniformly over this area.F4 F6 gass containe r has a total wall area Cincluding the lid) of 1-75 m² and a wal thick ness of 1.5 cm. It's filled with 1000g of ice Completely melt at conductiví ty of glass at OC. How many seconds will it take to fusion Is 80 cal/g and Ther mal SC OELETE the ice ? (latent heart of is D-8 w/m k) BACKSPACE TAB a) 120 s S LOCK c) Q,8005 d:) 200 s ENTE
- constant value mass of Imol volume of 1mol gas (100kPa and 300K) Thermal conductivity (100kPa and 300K) Volume of 1mol liquid (100kPa and boiling T) V=28.5cm³. т%39.9g V, =0.0242m3 k =0.0177 Wm-'K-1 And Cy 1 1 ki = lvrms V, 2 4ar2 NA use the thermal conductivity to calculate the size of atoms.(r is the radius of molecules -spheres). Cy/Vg Urms Compute constants like R and k) and obtain a numerical estimate of mean free path and using only the given numbers (so you can't use any number or physicalgas Lab 11 Instructions: Specific Heat Due: See Course Schedule eesm et elsluols mo nuoy b.e The density of iron is PFe €7.87g/cm3. Calculate the mass of the drilo diansb erT iron cube using the definition of density: p= m/V. Show your calculation. 10cm^3 10X10 x10 X 7.87 1.39/cm 3 7,810 gms Answer: こ take mass : by volum e mass - volum ecc (cm³) こ1 mome erlt sisidile erlt ec. woThe density of brick is pbr = 1.92g/cm³. Calculate the mass of the sriw wole brick cube using the definition of density: p = m/V. Show your pnnuas calculation. omme er euld en T0Answer: xac Massco = 1.42 x 10 cm Icm 3 1.9 Zg eignsit er = 19.2 19.2g こ d. The water and the oil are both in beakers which have a 3-liter capacity. Each of the major tick marks on the beaker is 1 liter, elsidile and each minor tick mark i6 0.2 liters. Examine the beakers and ut6ied determine the volume (in ml) of each liquid. (There are 1000 ml 1000mL= IL in one liter, and that 1 ml = 1 cm³.). hdml lcm3 ierine Answer:uteTegnmet eid) ho…I want the calculation for this expiremnt Note: the unit of thermal conductivity w/m.k
- A, B ond C ini dibally st rest. MA = 7hq. Mg=3he. Mc=9 kp. Determna the acceleratian are %3D A of moss B, when the sustem is releojed. toThe saturated vapor pressure of mercury is 0.0020 mmHg at 300 K and the density of air at300 K is 1.18 g L−1. ]ag Calculate the concentration of mercury vapor in air in mol L−1. ]bg Whatis the number of parts per million ^ppmh by mass of mercury in air?P P= 19399 xNlm, T=216-650 k° f3:1n93x0 kg|? +4 %3D M =1.4216 xio kglm.s at 12 km. Find P,P.T,M, a at 1I km.
- There are two important isotopes of uranium, U235 and U238 ; these isotopes are nearly identical chemically but have different atomic masses. Only U235 is very useful in nuclear reactors. Separating the isotopes is called uranium enrichment (and is often in the news as of this writing, because of concerns that some countries are enriching uranium with the goal of making nuclear weapons.) One of the techniques for enrichment, gas diffusion, is based on the different molecular speeds of uranium hexafluoride gas, UF6 . (a) The molar masses of U235 and U238F6 are 349.0 g/mol and 352.0 g/mol, respectively. What is the ratio of their typical speeds vrms ? (b) At what temperature would their typical speeds differ by 1.00 m/s? (c) Do your answers in this problem imply that this technique may be difficult?A warms transfers energy by conduction through its blubber at the rate of 150 W when immersed in 1.00 water. The walrus's internal core temperature is 37.0 and it has a surface area of 2.00 m2. What is the average thickness of its blubber, which has the conductivity of fatty tissues without blood?The goal in this problem is to find the growth of an ice layer as a function of time. Call the thickness of the ice layer L. (a) Derive an equation for dL/dt in terms of L , the temperature T above the ice, and the properties of ice (which can leave in symbolic form instead of substituting the numbers). (b) Solve this differential equation assuming that at t=0 , you have L=0 . If you have studied differential equations, you will know a technique for solving equations of this type: manipulate the equation to get dL/dt multiplied by a (very simple) function of L on one side, and integrate both sides with respect to time. Alternatively, you may be able to use your knowledge of the derivatives of various functions to guess the solution, which has a simple dependence on t. (c) Will the water eventually freeze to the bottom of the flask?