A 660 W electric heater is designed to operate from a 120 V source. If the source voltage drops to 80.0 V, what will be the power dissipated by the same heater? (Assume the resistance of the heater is constant.) а. 440 W b. 660 W с. 293 W d. 73.3 W

Q: A long straigt aive twisted into loop of radios is 0.1 m. a Current flows clock wise find the of the…

A: radius (r) = 0.1 m Current (I) = 20 A , clockwise

Q: If a rock of mass 6kg is dropped from a height, and has a velocity of 5 m/swhen it hits the ground,…

A: Given: mass m = 6kg final velocity v = 5 m/s To find: height, s=??

Q: Hiw Find the are a bounded by the curve y=X y=0 X=0'and X= |

A: Answer..

Q: Ignoring air resistance, from how high above thr ground would a 0.3 kg ball need to be dropped to…

A:

Q: Deaves Ns home port and heade in the drectionN 70 treveis d- 20 mi and reaches tg taland. The net…

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Q: we lknow that Im is approxinmately 39.37ine we asoknow the following exact conversion equivalents: I…

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Q: find lagrnJEs equation b.

A: Given,  Lq.,q,t= q.4-q2q= q.4-qLagrangian equation  is given as d dt∂L∂q.-∂L∂q=0+1=1

Q: A Stomp hoc of a 3- meter

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Q: in terms ot Snell's law equal tan (0-$) tan (et$ ) what is it () in terms of (e and )?

A:

Q: when electrical appliances whose power usage is x watts is run Y seconds , it uses XXY joules of…

A: The energy unit used by electrical utilities in their monthly bills is the kilowatt-hour.

Q: is that the same answer if the unit is J/kg*K?

A: We know that the upper and lower fixed points in the Celsius scale and the Kelvin scales are…

Q: Convert 10^3 g x L^-1 to kg x m^-3

A: Answer  103 gL-1=103 kg m-3

Q: If  A=3ĵ, A⨯B=12î, and A·B=27, find B.

A: Given:A=3ĵA⨯B=12îA·B=27

Q: The unit of measure called the "newton" is:

A: The unit of measure called the "newton" is:

Q: Choce the comect vechy v d g praen Upw Úpg iwg Upw

A: Velocity is a vector quantity, so its followed vector laws of addition.

Q: Solve and match the answer

A:

Q: Shouldn't r be squared

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Q: can you extend the answer until letter H?

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Q: if Å = 2êx - 3êy+ ê2 3eyt e z e z B= 3e, Bey- 3eyt e z C=46 Calculate: dire ction of A.C

A: Given, A→=2e^x-3e^y+e^zB→=3e^x-3e^y-e^zC→=4e^x-3e^y+e^z So,…

Q: Hi, I just want to verify if what is the raise number, is it 9 or 4? Thank you.

A: The answer is 5×104

Q: The figure shows vertical parallel plates of length L=5 cm separated by 4 cm. Electrons (mass me =…

A: Given : Length of the parallel plates L=5 cm distance between plates d=4 cm=0.04 m distance from…

Q: O Gilen the Vectors ů = 2% -j+ K ad 7 = 3i -3j + K fird the ūy. product Also find Peo Gnd campare st…

A:

Q: George O'Malley weighs 150 kg and he is riding his car going to Manila as it moves to a speed of 15…

A: The mass m=150kg  The speed =15m/s  To find the kinetic energy

Q: What is the ΔKE if a grocery cart is pushed 12 m with a force of 15N?

A: Given Force on grocery cart F = 15 N Distance to which grocery cart is pushed d = 12 m To find…

Q: For A = 2â – lŷ, B = 2ŷ- 12, and C = lu +32 compute the following: %3D

A:

Q: Wh at if the height of an object is negative? -0.07 m?

A: Given data: The height of an object is hi=0.07 m.

Q: Find the lem of a solid sphere whose volume mass densityp- kr and whose mass - 6 kg and radius - 1.2…

A: given, ρ=kr6 m=6kg r=1.2m

Q: If a rock of mass 6kg is dropped from a height, and has a velocity of 5 m/s when it hits the ground,…

A: The kinetic energy of the rock just before it hits the ground will be KE=12mv2=126kg5m/s2=75J

Q: You have 2 positive charges, Q+ and +4Q. Ther are fixed on the axis shown on the image. They are 1.2…

A:

Q: A box is put on frictional surface at rest, if only a 150 N is applied, the box will cover X…

A: Solution:   It is given that,   F1=150 N, box covers X distance in 5 sF2=250 N, box covers 3X…

Q: A uniform where is cut into luo pieces such that one piece is truice as long as other. The two…

A: The resistance of the resistor in the right gap is given as, R=20 Ω, The length of one piece of wire…

Q: How many significant digits does 1200 have? O 2 O Unknown О з 4.

A: Significant figures are the number of digits in a value, often a measurement, that contribute to the…

Q: prove that: T Vs V =, 2n 2

A: To prove: VL = 12π∫0π Vs2 sin2ωt dt  = VS2   We have the relation, VL = 12π∫0π Vs2 sin2ωt dt…

Q: he equation is derived fro Vf

A: