Object a experiences an attractive force of 50 n when it comes close to object b. if object a is positively charged, what can you say about object b?
1. you cannot tell from the information given.
2. object b is negatively charged.
3. object b is positively charged.
4. object b is neutral.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?