The collar of 5 kg mass shown in the figure у (т) y + 2 moves on a parabolic bar on a horizontal plane. The collar has a speed of 8 m/sec when it is at point B. Determine the friction force between the collar and the bar if the coefficient of friction is 0.25. Formula of the parabolic bar is shown in the figure. -4 4 x (т)

Q: 17)An object becomes positively charged, this means that the object: Lost electrons Gained protons…

A: When an electron is added or removed from an object, then an electrical charge is created on it. So,…

Q: Name the force between two protons or two electrons.

A: Charged particle can exert force on each other

Q: (B) If electrical energy were used, how much would this cost at 38¢ per kWh?

A:

Q: Is there any negative charge on a positively charged object?

A:

Q: 9) A cor cu lar of parallel plate p lates capa ciror The are being charged by 10 A Current of a 2.0…

A: Current (I) = 2×10-9 A Radius (r) = 1.2 m

Q: is human hair and cotton negatively charged

A: there are two type of electric charge 1. Positive charge (+) 2. Negative charge(-)

Q: I am asking if the positive charges move or only the electrons move

A: