A point charge of +7.45 pC (7.45 × 10-12 C) is fixed at the origin. What is the electric field produced by this charge at point P, which is on the x-axis, 9.83 mm from the origin?

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