Two Physics professors challenge each other to a 100 m race across the football field. Dr. Rice runs the race in 10.40 seconds. Dr. Lopez runs the first 25 2nd m with an average speed of 10 m/s, the next 50 m with an average speed of 9.50 m/s and the last 25 m with an average speed of 11.1 m/s.

Dr. Rice

Explanation:

For determining who is stuck grading physics labs  for the coming month first determine the Dr. De La Paz time taken

= (25 ÷ 10) + (50 ÷ 9.5) + (25 ÷ 11.1)

= 2.5 + 5.26 + 2.25

= 9.51 seconds

And, the Dr Rice runs the race is 10.40 seconds that means he takes more time as compared with the Dr. De La Paz

We simply applied the distance by speed formula so that the time could come

Therefore the  Dr. Rice gots stuck

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: