An automobile engine has an efficiency of 19.0%. If it produces 23.0 kJ of mechanical work per second, the heat rejected per second from the engine is closest to: (a) 77.0 kJ (b) 81.5 kJ (c) 86.5 kJ (d) 92.0 kJ (e) 98.1 kJ

Is work being done when a hiker puts on a bag

The weight of the box used in the experiment is 10 Newtons (N). The weight of the box is a measure of the? A. velocity of the box while sliding. B. friction between the air and the box. C. force acting on the box due to gravity. D.

What happens to matter consumed in nuclear fusion?

What elements make up caramel?

What term described the capability to prevent one participant in an electronic transaction from denying it performed an action?

Starting at its rightmost position, it takes 2 seconds for the pendulum of a grandfather clock to swing a horizontal distance of 18 inches from right to left and 2 seconds for the pendulum to swing back from left to right.

A question about a moral issue is answered by examining facts rather than opinions. is generally considered a scientific question. cannot be answered with scientific methods. cannot be debated through discussion.

Who is most likely to have a physiological age that is much younger than his or her actual age?

Inflammation happens when the mucous membranes cannot stop a pathogen. True False

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?