A Carnot engine takes 3000 J from a reservoir at 600 K, does some work, and discards some heat to a reservoir at 300 K. What is its efficiency?

50%

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Suppose two waves collide and the temporary combined wave that results is smaller than the original waves. What term best describes this interaction? a. diffraction b. destructive interference c. standing wave formation d. constructive interference

Four students were loading boxes of food collected during a food drive. The force that each student exerted while lifting and the distance each box was lifted are listed in the table.

What is baking soda and example of

What type of rock is formed from the weathered remains of other rocks?

An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in sea water. Find the depth of the water if the time delay of the echo to the ocean floor and back is 5.95s.

Compare and contrast the average kinetic energy of 0.5 L of coffee at 34°C, 0.5 L of coffee at 38°C, and 0.25 L of tea at 43°C.

A 7700-kg box car traveling at 14 m/s strikes a second car at rest. The two stick together and move off with a speed of 5.0 m/s. What is the mass of the second car?

What will happen if there is a change in a magnetic field?

Question 2 10 pts The voltage in a particular circuit is 10.0 V. The current in the circuit is 20 A. What is the resistance? A. 2.0 B. 30 C. 200 D. 0.5

Where in the motion is the magnitude of the net force on the object a maximum? where in the motion is the speed a maximum?