As Jane approaches a stop sign, she applies a braking force of 10,000 N. Her car has a mass of 2,000 kg and is moving with a velocity of +20 m/s. What is the impulse imparted to bring the car to a stop?

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c