A car moves in a straight line at 22.0 m/s for 8.0 miles, then at 30.0 m/s for another 8.0 miles. (a) Is the car's average speed less than, greater than, or equal to 26.0 m/s?
less than 26.0 m/s
equal to 26.0 m/s
greater than 26.0 m/s
Correct: Your answer is correct.

(b) Calculate the car's average speed. (Enter your answer to three significant figures.)
m/s

Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.