Other Physics Answers

a) Two point charges of q1=+3nC and q2=-4nC are separated by a distance of 60 cm. Determine the electric field strength at a point that is 15 cm from q1 and 20 cm from q2

The point lies between the two charges

b) What is the magnitude of a test charge that experiences a force of 1.4 x 10^-8 N at a point where the electric field intensity is 2 x 10^-4 N / C ?

a)  An electron is accelerated eastward at 1.8x10^9 m/s^2 by an electric field. Determine the magnitude and direction of the electric field.

b) Calculate the electric field strength 20 cm from a 4nC charge.

A rocket of mass 5.0kg is travelling horizontally with a speed of 200ms-1 when it explodes into two parts.

One part of mass 3.0kg continues tin the original direction with a speed of 100ms-1 and the other part continues in the same direction.

Calculate the unknown speed of the other part.

a) On a certain point, the electric field intensity is of 50N/C toward North. An unknown charge receives a force of 5x10^-5N toward South. Find the magnitude of the unknown charge.

a) A charge -25μC is 0.5 m at right from a charge 49μC. Find the net field intensity at a point located 0.03 m directly above charge -25μC.

b) Find the electric field intensity in the midpoint of a straight line 0.8 m length that joins a charge +40μC with another charge -60μC.

a) Find the distance from a point charge q=100nC where the field intensity is equal to E=6kN/C

b) The charge density on each of two parallel plates is of 5μc/m². Find the intensity of the electric field E between both plates.

Energy (E) [M] [L] ^{2 /[T] 2}

Distance (x) =[L]

Here [L] ` [T] and [M] denote respectively dimensions of length, time and mass

Now consider the equation. E=1/2 kx²

What must be the dimensions of k in order for the equation to be dimentally correct

Determine the horizontal and vertical components of a bus if it is moving at 80km/h going 22° south of west

A string has a linear mass density 4 kg/m  . The string is attached to the ceiling and a flag of mass 64kg hangs from the other end.

if a transverse pulse travels up the string toward the ceiling.

At what speed does the pulse travel?