Two parallel plates are 4cm apart and have a potential difference of 2.5kV between them . a) Calculate the electric field strength between the plates . b) A small piece of dust carrying a charge of +2.4nC moves into the space between the plates i) Calculate the force on the dust particle . ii) the mass on the dust particle is 4.2 micro grams. Calculate the acceleration of the particle towards the negative plate

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2