A light bulb, having a tungsten filament, draws 0.5 A at 110 V. The cold resistance of the filament is 200 at 20 °Č. At this temperature the temperature coefficient of resistance (for tungsten) is 0.005 °C. Determine the operating temperature of the bulb.

Q: 9 and 10. Thanks.

A: 9.The equation for dot product

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

Q: 1. Can objects in a system have momentum while the momentum of the system is zero? Explain.

A: Given :- can objects in a system have momentum while the momentum of the system is zero .

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Q: Not understanding

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Q: The total time a projectile spends in the air along its trajectory A. air resistance В. trajectory…

A: Answer is D

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A: As we know that rate of motion is speed . But according to the question,  we have asked the rate of…

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A: Given: in this question, the given details are, In the Oersted's experiment, the compass was 0.24 m…

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A: weight per unit length, w=0.5 lb/ft Bucket with plaster, W=22 lb This bucket is pulled by the rope…

Q: Problem #1) Determine the moment of forces about point 0. F3=75 lb X- 15⁰ 6'-0" Y F₂ = 50 lb 90° Y…

A: Forces F1 = 25 lb,  F2 = 50 lb, F3 =  75 lbdistance between origin and point O (d) = 6 ft

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: 1. Please answer the question ty!

A: Given that Mass m=1 slug Spring constant k=9 lb/ft Given initial condition at t=0 y0= 1 ft and y0'=3…

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: 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: Given that 1² ex dx = · [²³³ ex dx = e³ - e, use this result to evaluate 3ex +4 dx

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Q: Light bulb 1 operates with a filament temperature of 2500 K, whereas light bulb 2 has a filament…

A: T1=2500k. T2=1900k.

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A: Given: In this question, the given values are, Voltage is, V=40Volt, And the electric field is,…

Q: 6&7 please

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Q: 7. Solve for unknown parameters 30

A: solution is given as

Q: thanks for the help

A:

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Q: 12k R1 A 4k

A: HERE GIVEN I=24 mA     R1= 12k     R2  = 4k according to kirchhoffs law  JUNCTION LAW  incoming…

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Q: A convex lens has a focal length of 17 cm. A candle with a height of 4 cm is 10 cm

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