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The resistivity of gold is 2.44 x 10⁻⁸ ohms.m at room temperature. A gold wire that is 1.9 mm in diameter and 48 cm long carries a current of 800 mA. What is the electric field in the wire?

Charles Sarrazin asked Dec 19, 2024

by Charles Sarrazin

8.1k points

1 answer

2 votes

149k views

A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 49 fts. Its height in feet after t seconds is given by y = 49t-16t^2 Find the average velocity

Ayman Salah asked Dec 19, 2024

by Ayman Salah

7.4k points

2 answers

1 vote

85.3k views

I recently read about how warmer air decreases lift for airplanes. I wondered whether birds would also experience reduced lift, and whether that might make it harder for them to migrate long distances.

CennoxX asked Dec 19, 2024

by CennoxX

8.1k points

1 answer

4 votes

181k views

What is the major loss in batteries? Write down resistive heating term for heat generation in batteries? How does it change with charge rate?

Jumi asked Dec 19, 2024

by Jumi

8.3k points

1 answer

5 votes

25.6k views

A three-phase 132kV,100 miles long transmission line has a resistance of 0.1Ω per mile per phase, inductance of 1.5 mH per mile per phase, and capacitance of 9 nF per mile per phase. If the receiving end

Vtcajones asked Dec 19, 2024

by Vtcajones

8.4k points

1 answer

4 votes

9.8k views

The electromagnetic spectrum includes radiation with wavelengths from less that ____ to more that ____________ nanometers

Serbin asked Dec 19, 2024

by Serbin

8.1k points

1 answer

5 votes

112k views

A Pre-Assessment Spring 2023 / 3 of 20 What are the solutions to the equation x²-4x-5=0 ?

Ellie Fabrero asked Dec 19, 2024

by Ellie Fabrero

7.8k points

1 answer

5 votes

189k views

According to Graham's Law of Diffusion for gases through liquids, how much more soluble is CO₂ compared to O₂ ? a. 2.4 times b. 18.9 times c. 1.2 times d. 22.2 times

Nimit Bhardwaj asked Dec 19, 2024

by Nimit Bhardwaj

8.2k points

1 answer

2 votes

187k views

Match the vocabulary term with the correct definition: 1. the number of times the heart beats in a minute 2. the amount of blood the heart can pump in a single beat 3. the total amount of blood the heart

Kevin Garay asked Dec 19, 2024

by Kevin Garay

8.8k points

1 answer

4 votes

181k views

An automobile battery, when connected to a car radio, provides 12.5 V to the radio. When connected to a set of headlights, it provides 11.7 V to the headlights. Assume the radio can be modeled as a 6.25Ω

Christian Gollhardt asked Dec 19, 2024

by Christian Gollhardt

7.4k points

2 answers

5 votes

155k views

a 2.00 kg steel bar is initially at room temperature (293 k). if we add 284,000 joules of heat to the gold, what percentage (%) of the gold bar melts?

Thang Phi asked Dec 19, 2024

by Thang Phi

8.4k points

1 answer

2 votes

127k views

Suppose there is a 1.3 drop in temperature for every game thousand feet that an airplane climbs into the sky.The temperature on the ground is -2.8.What will be the temperature be when the plane reaches

Jeff Lambert asked Dec 19, 2024

by Jeff Lambert

7.5k points

1 answer

3 votes

97.3k views

What is the difference between the average velocity on the interval [1, 2] and the instantaneous velocity at t = 2?

Ankur Bhutani asked Dec 19, 2024

by Ankur Bhutani

9.0k points

1 answer

0 votes

101k views

Which of the planets in our solar system is the hottest, with temperatures averaging 842 fahrenheit?

Greenisus asked Dec 19, 2024

by Greenisus

8.0k points

1 answer

1 vote

205k views

An elevator travels up and down. The vertical position of the elevator in meters over time is shown below. The position (in meters) at different times is given as follows: 1, 15, 12, 9, 6, 3. The corresponding

Mariya Steksova asked Dec 19, 2024

by Mariya Steksova

8.2k points

1 answer

2 votes

161k views

What is John's resultant displacement from the 232 km marker after traveling from the 146 km marker to the 167 km marker? a) 21 km b) 43 km c) 55 km d) 89 km

Pallavi Chauhan asked Dec 19, 2024

by Pallavi Chauhan

7.9k points

1 answer

1 vote

87.0k views

Jupiter's moon lo has a mass of 8.94 x 1022 kg and a radius of 1815 km. What is the acceleration due to gravity on the surface of lo?

Daniel Stutzbach asked Dec 19, 2024

by Daniel Stutzbach

8.2k points

1 answer

2 votes

21.0k views

Calculate the displacement at a time of 1.50 s for a rock thrown straight down with an initial velocity of 14.0 m/s from the Verrazano Narrows Bridge in New York City. The roadway of this bridge is 70.

Thinkerbelle asked Dec 19, 2024

by Thinkerbelle

7.7k points

1 answer

1 vote

35.8k views

A satellite is to be launched into a sun-synchronous, circular orbit with a period of 103.8 minutes. determine the required altitude of the orbit

Satch asked Dec 19, 2024

by Satch

8.3k points

1 answer

5 votes

114k views

A baseball is thrown vertically upwards with. Velocity of 12m/s. How long is it in the air for

Abhishek Dutt asked Dec 19, 2024

by Abhishek Dutt

9.0k points

1 answer

0 votes

129k views

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