A Mylar balloon is filled with 400 g of helium gas (atomic weight 4 u) at an atmospheric pressure of 1 x 10° Pa. The temperature of the helium is 0°C. How many moles of helium are containcd in the balloon? What is the volume of the balloon?

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A: Given: Surface area of Ashcraft is 1.9 m2 Emissivity is 1 Temperature is 37oC or 37+273=310 K

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A:

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A: let q1 = 2.8 x 10-6 Cq2 = 7 x 10-6 Cq3 = 4 x 10-6  C

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Q: a) 61.3N b) 47.2N c) 33.4N d) 74.58N

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Q: A rod with a lies abng the x ox's os 'shown. Chorge der s shown. Chorge %3D so woniB 5; pas aut Jo}…

A: The solution of thi question is

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Q: An infinitely long wire is uniformly charged. The voltage difference from r 2 m and r= 4 m is 30…

A: Given:    An infinitely long wire --- uniformly charged.    Voltage difference (ΔV) (between r1 = 4m…

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A: Given: In this question, the given details are, The coil in a loudspeaker has 55 turns and a radius…

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A: Answer is D

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Q: 2. Three point charges q; = +2.7µC, q2 = -3.4µC and q3 = -1.6µC initialy are infinitely far apart.…

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Q: Find the frequency of a wave that has a period of 0.063 seconds.

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Q: In Oersted's experiment, suppose that the compass was 0.24m from the current-carrying wire. If a…

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Q: 17. A piece of number 10 aluminum wire has a diameter of 2.59 mm. How many meters of number 10…

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Q: The block in the drawing has dimensions LO×2L0×3L0.where Lo =0.3 m. The block has a thermal…

A: Give Thermal conductivity = 100j/s-mC  Delta T = 21- 12 ° C = 9 ° c

Q: A horse pulls a cart with a force of 15 lb at an angle of 34° above the horizontal and moves along…

A: applied force (F) = 15 lb Angle (θ) = 34o above the horizontal Constant speed (v) = 6.7 mihr

Q: 4. One on end of a pipe with a diameter of 5.00 cm, the pressure is 100 kPa and the speed of the…

A: Fluid mechanics.

Q: A rock (weight 25 N) is suspended from a cable attached to the ceiling of a moving elevator. If the…

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Q: On earth, two parts of a space probe weigh 10600 N and 3780 N. These parts are separated by a…

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Q: = 201². The fan blade in a jet engine rotates from rest with the angular acceleration a = 1 9. find…

A: GIVEN         Angular acceleration = α = 20t2

Q: 4. When is the magnetic flux maximum? zero? 5. A loop of wire in the form of a square 1.50 m on each…

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Q: same magnitude F. If there is no friction between block b and the table, and there is enough…

A: E

Q: And r0 ?

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Q: 6&7 please

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Q: 5) Let's use this expression to solve a problem. Star X and Star Y are intrinsically identical…

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Q: 7. Solve for unknown parameters 30

A: solution is given as

Q: Consider the 68.0 kg mountain climber in the figure. 31 Fup 15 (a) Find the tension in the rope (in…

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Q: 7,8,9

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Q: thanks for the help

A:

Q: 3. Determine whether the corresponding system is linear, time invariant and causal. Show block…

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Q: wave paths to a distant screen are shown, leaving the slits at angle ₁. (The screen is so far away…

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