A +20-nC point charge is placed on the x axis at x = 2.0 m, and a ?25-nC point charge is placed on the y axis at y = ?3.0 m. What is the direction of the electric field at the origin?

a. 209°
b. 61°
c. 29°
d. 241°
e. 151°


a

Physics & Space Science

You might also like to view...

Once a terrestrial planet had formed from a large number of planetesimals, heat could have melted it and allowed it to differentiate into a metallic core of ____________density and a rocky mantle or crust of ____________ density

a. higher; lower b. lower; higher c. Wrong! The interior stays solid. d. Wrong! There is no separation according to density.

Physics & Space Science

A converging lens always forms an object's image at the focal point of the lens

a. True b. False Indicate whether the statement is true or false

Physics & Space Science

For the multiplication of 6.3 m divided by 2.8 m, the result should be reported with how many significant figures?

a. Two b. One c. Three d. Four e. Seven

Physics & Space Science

Ethanol is to be condensed around cool 10ºC tubes of 1 cm outside diameter and at a 50 saturation temperature of 78.5ºC. Plot the heat transfer per unit length on horizontal tubes arranged as shown in Figure 10-17b and as predicted by Equation 10-49 as the number of tubes is increased. How does this result compare to the heat transfer predicted for a single tube or for a dripping, in-line tube arrangement as shown in Figure 10-17c? Ethanol has a heat of vaporization hnfg of 842 J/kg at atmospheric pressure.



Physics & Space Science