2. 그림과 같은 수직 폴(pole)에 수평하중 P=6675 N 이 작용할 때 폴에 발생하는 최대 전단응력을 구하라. 폴의 d2 100 mm °) 1 4d₁-80 mm 0. P Find the maximum shear dz stress that occurs in the pole when a horizontal load P=6675 N is applied to the vertical pole as shown in the figure. The outer diameter of the pole is d2=100mm and the inner diameter is d₁ =80 mm.
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- The distance between the Earth and the Moon is 3.85 x108 m. During the Apollo 15 mission, astronaut David Scott was often communicating lunar findings from the Moon to the Earth. How much time did it take for his voice to reach the Houston via radio waves? 0.99 s 1.57 s 2.11 s 1.28 s 1.76 s HUNUE,BATELCO 8:32 O 52% ³0{ stc Google Translate الإنجليزية العربية v العربية تعريف الخلية الكهربائية من الألومنيوم؟ taerif alkhalyat alkahrabayiyat min al'aluminium? تحويل الصوت إلى نص محادثة كاميرا الإنجليزية Definition of an electrical cell of aluminum? O O Dس8: باستعمال طريقة المتجه الدوار ارسم أشكال ليساجو لتراكب كل زوج من الحركات التوافقية التالية Sx = 3 sin(5nt + n/2) b) ly 4 sin 5nt (x = 4 sin(32nt + 31/4) b) y = 3 sin 32nt %3D
- The distance between the Earth and the Moon is 3.85 x108 m. During the Apollo 15 mission, astronaut David Scott was often communicating lunar findings from the Moon to the Earth. How much time did it take for his voice to reach the Houston via radio waves? 0.99 s 1.57 s 2.11 s 1.28 s 1.76 sDistances in space are often quoted in units of light years, the distance light travels in one year. (a) How many meters is a light year? m (b) How many meters is it to Andromeda, the nearest large galaxy, given that it is 2.00 ✕ 106 light years away? m (c) The most distant galaxy yet discovered is 12.0 ✕ 109 light years away. How far is this in meters? m| : | M?——— A distortion less line has Zp= 60 Q. o = 20 mNp/m, V= 0.6C, where C is the speed of light in a vacuum. Find the Ui.ne parameters R. L G. C. and / at 100MHz.
- The wavelength of visible light is from, O 400 m to 700 m O 400 km to 700 km O 400 cm to 700 cm O 400 nm to 700 nmエ, I, 16.0V 9.00L 4.00v 7.805 エ2 10,0V Ing 1.50SLA) Suppose a star is 4.15 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth from the surface of this star. How long (in years) would it take to reach Earth? B) The Sun is 1.50 ✕ 1011 m from Earth. How long (in minutes) does it take sunlight to reach Earth? C) The Moon is 3.84 ✕ 108 m from Earth. How long (in s) does it take for a radio transmission to travel from Earth to the Moon and back?
- 61) F1 = [ Select ] F2 = [ Select ] 2.7N 5.6N 13.5N 2.2N 1.5N 6N F1 = 1 F2 = 8.1N へ へ ||2. A satellite orbiting the Earth is powered by photovoltaic ("solar") panels that convert light energy to electricity with a conversion rate of 15.0%. Telemetry from the satellite indicates that the panels are supplying a peak power output of 3.60 kW, and the specifications of the panels state that they have 16 m² of light-collecting surface area. The radius of the Sun and its distance from Earth have long been known to be 6.96 × 108 m and 1.50 × 10¹¹ m, respectively. Assume the Sun radiates approximately as a blackbody and calculate the surface temperature of the Sun.2. Two astronauts are 1.20 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via electromagnetic waves. The time it takes for sound waves to travel at 346 m/s through the air between the astronauts equals the time it takes for the electromagnetic waves to travel to the earth. How far away from the earth is the spaceship? m.