Question

A square antenna is made of copper strips and the length of any side at 25°C...

A square antenna is made of copper strips and the length of any side at 25°C is 10 meters. The average coefficient of linear expansion of copper is 0.00002 (°C)⁻¹. What is the area of the antenna if all the sides are heated evenly to 50°C?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A square loop made of copper wire is falling out of a region where there is...
A square loop made of copper wire is falling out of a region where there is a magnetice field Bext = 0.06 T. The loop is falling with a constant velocity because of the current induced in the loop. What is the velocity of the loop? Give your answer in m/s to at least three significant digits to avoid being counted wrong for rounding. It will be useful to know that: The mass density of copper (mass per volume) is...
A circular brass plug needs to pass through a square hole in an iron sheet. At...
A circular brass plug needs to pass through a square hole in an iron sheet. At room temperature (20◦C), the diameter of the plug is 8.755 cm and the length of each side of the square is 8.740 cm. At what temperature must the iron sheet be brought in order for the brass plug to fit through the square hole? The brass plug is not heated. The coefficient of linear expansion for iron is 12 × 10−6/◦C. (The answer is...
A cylindrical rod have 400 cm length, 4 cm diameter and weigh 8000 gm at 25...
A cylindrical rod have 400 cm length, 4 cm diameter and weigh 8000 gm at 25 oC. -6o -1 The Linear coefficient of thermal expansion (αl) = 15.3 x10 C . The rod is heated to 400 oC. a. Calculate the volume of the rod at 25 oC & 400 oC. Show all steps of calculations. b. Calculate the density of the rod at 25 oC & 400 oC. Show all steps of calculations. A cylindrical rod have 400 cm...
In a temperature of 15 ° C an iron rod has a length of 5 meters....
In a temperature of 15 ° C an iron rod has a length of 5 meters. What will its length be when the temperature increases to 25 ° C? Its linear coefficient α = 11.7 x 10-6 / ° C
Q1. An engineer is building a structure made from concrete and copper. The structure includes concrete...
Q1. An engineer is building a structure made from concrete and copper. The structure includes concrete posts with diameter 20.0 cm and copper rings with diameter 19.95 cm, as measured at 16 °C. What is the minimum temperature that the copper and concrete must be heated to in order for the copper ring to slip over the concrete post? Q2. An ice cube with temperature 0°C and weighing 20 g is dropped into 100 g of boiling water. When the...
The active element of a certain laser is made of a glass rod 25.0 cm long...
The active element of a certain laser is made of a glass rod 25.0 cm long and 1.60 cm in diameter. Assume the average coefficient of linear expansion of the glass is equal to 9.00  10-6 (°C)−1. The temperature of the rod increases by 62.0°C. (a) What is the increase in its length? cm (b) What is the increase in its diameter? cm (c) What is the increase in its volume? cm3
Consider a polygon traverse. The azimuth of side AB is fixed at 35∘09′32′′.A=57∘00′50′′, B=88∘24′45′′, C=126∘36′58′′, D=46∘03′25′′,E=221∘53′52′′....
Consider a polygon traverse. The azimuth of side AB is fixed at 35∘09′32′′.A=57∘00′50′′, B=88∘24′45′′, C=126∘36′58′′, D=46∘03′25′′,E=221∘53′52′′. (Note: Line BC bears NW.) The lengths of the sides (in meters) are as follows: AB=383.808, BC=360.209, CD=342.204,DE=336.210, and EA=267.527. The coordinates of station A are X=310,630.892m and Y=121,311.411m. calculate by coordinates the area within the traverse above area=
(a) A 34.7-m length of copper wire at 20.0°C has a radius of 0.29 mm. If...
(a) A 34.7-m length of copper wire at 20.0°C has a radius of 0.29 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Material Resistivity (Ω · m) Temperature Coefficient of Resistivity [(°C)−1] Silver 1.59 ✕ 10−8 3.8 ✕ 10−3 Copper 1.7 ✕ 10−8 3.9 ✕ 10−3 Gold 2.44...
(a) A 35.1-m length of copper wire at 20.0°C has a radius of 0.31 mm. If...
(a) A 35.1-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Material Resistivity (Ω · m) Temperature Coefficient of Resistivity [(°C)−1] Silver 1.59 ✕ 10−8 3.8 ✕ 10−3 Copper 1.7 ✕ 10−8 3.9 ✕ 10−3 Gold 2.44...
28. Wires of the same length are made from metals A and B. Metal A ha...
28. Wires of the same length are made from metals A and B. Metal A ha a coefficient of linear expansion equal to twice that of metal B. Both wires are heated independently, but uniformly from an initial temperature of 40 degrees celcius and the heating is stopped when their final lengths are again equal. If wire A is removed from the heat source when its final temperature is 50 degrees celcius, what is the final temperature of wire B?...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT