A Carnot engine operates with a cold reservoir at a temperature of 474 K and a hot reservoir at a temperature of 628 K. What is the net entropy change (in J/K) as it goes through a complete cycle? slader

When two plates pull apart from one another, what is likely to happen there? A. subduction B. volcanic activity C. mountain building D. transform movement

Through which medium will sound travel most rapidly?

A sled slides down a hill, reaches the level surface, and eventually comes to a stop. Which fact ultimately explains why the sled stops? A. The presence of an unbalanced force causes an object to move forward at constant velocity B.

List five compounds the element Xenon can form identify whether each compound is only naturally occurring, only human-made, or both naturally occurring and human-made

You have just installed a new sound card in your system, and Windows says the card installed with no errors. When you plug up the speakers and try to play a music CD, you hear no sound. What is the first thing you should do? The second thing? a.

Work is a product of A force and distance B force and heat energy C cause and heat energy D cause and effect

An exploration submarine should be able to descend 1200 m down in the ocean. If the ocean density is 1020 kg/m3, what is the maximum pressure on the submarine hull?

Why cooking pans don't have have metal handles?

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band

How would you explain photosynthesis to a new student in class