Other Physics Answers

1. The electric force between two point charges with a magnitude of 800uC and 900uC is 15 N. How far apart are the two charges in cm?

2. A force of 500 N between two identical point charges is separated by a distance of 47m. Calculate the magnitude of the two point charges.

Two-point charges are arranged on the x-y coordinate system as follows; q₁= 3.0 nC at (0, 3m) and q₂= -9.0 nC at (0,0). Find the electric field at point on x-axis 4.0 m from the origin. 

Calculate the magnitude and direction of the electric field 0.85 m from a + 3.25 𝜇C point charge. 

A particle moves in a straight line with an initial

velocity of 30 m/s and constant acceleration 30 m/s2

.

(a) What is its displacement at t = 5 s? (b) What is its

velocity at this same time?

how much work is done on a 5 kg block if it is to be moved on a ramp 30° above the horizontal and height of 1 meter? what are the values of work done by each force?

A 60.0 kg space explorer just discovered a perfectly spherical planet. She found out that her apparent weight is 97% at the equator of a planet compared to that at the pole, which is 360N. If the rotational period of the planet is 14.0 h, what is the radius of the planet?

A parallel plate air capacitor has a capacitance of 5 F. What is the electric field between two parallel metal plates separated by 2,5 cm with a potential difference of 3000V?

A parallel plate air capacitor has a capacitance of 5 F. What is the capacitance if a dielectric of relative permeability of 2 is inserted between the plates of the original air capacitor?

A parallel plate air capacitor has a capacitance of 5 F. What is the capacitance if the area of the plates is decreased to one-half its original value while keeping all other factors constant?

A parallel plate air capacitor has a capacitance of 5 F. What is the capacitance if the separation between the plates is decreased to one-half its original value while keeping all other factors constant?