Physics Answers

Given: 𝐴 = 100𝑚, 30°𝑁𝑜𝑓𝐸; 𝐵⃑ = 80𝑚, 30°𝑊𝑜𝑓𝑁and𝐶 = 40𝑚, 55°𝑆𝑜𝑓𝑊

a. Plot the given vectors in the coordinate plane.

b. Calculate the components of vectors A, B and C. 

c. Write each vector in terms of the unit vectors.

d. Determine the resultant vector.

e. 𝐴 − 2𝐵⃑ + 𝐶 f. 𝐶 + 𝐴 − 𝐵⃑

Describe what happens inside the c.r.o.to

turn the spot into a horizontal line.

Determination of charge/mass ratio of electron using narrow fine beam tube experiment procedure

Determination of charge/mass ratio of electron using narrow fine beam tube experiment theory

Determination of charge/mass ratio of electron using narrow fine beam tube experiment objective

Determination of charge/mass ratio of electron using narrow fine beam tube experiment objective

Determination of charge/mass ratio of electron using narrow fine beam tube apparatus

Determination of charge/mass ratio of electron using narrow fine beam tube full experiment

1. Two small conducting and identical spheres A and B have charges -32nC and +20nC respectively, they are separated by a distance of 0.23m.

a. What is the magnitude of the electric force between two spheres? Is this force attractive or repulsive?

b. What is the magnitude of the gravitational force between two spheres? Is this force attractive or repulsive?

2. Two protons are separated by a distance of 2.3×10^-10m in air.

a. Find the magnitude of electric force one proton exerts on the other. Is this force attractive or repulsive?

b. Find the magnitude of the gravitational force one proton exerts on the other. Is this force attractive or repulsive?

In an attempt to deliver the parcel on time, the dispatch rider had to ride 10km 15 degrees SE, he then rode 11km 30 degrees NE and then takes a shortcut at 22km W. How many km did he ride NE and W combined?