Calculate the efficiency of an engine in a power plant operating between 40 ° c and 320 °

c. remember that the efficiency is a decimal number less than 1.

mackinzie walks 4 blocks west, then 2 blocks south, then 4 blocks east, and, finally, 1 block south. what is the magnitude of her total displacement (in blocks) ?

Which statement is true of light when it speeds up on entering another medium? A. The index of refraction is higher in the second medium than it was in the first. B. The index of refraction is lower in the second medium than it was in the first. C.

A force of 6n is exerted on a cart that is carrying a rock and produces an acceleration of 2 m/s2. if the cart has a mass of 1 kg, what is the mass of the

How does light travel? A. Light only travels in a vacuum and travels faster when the sound source is moving. B. Light only travels in a medium and light travels faster when a sound source is stationary. C.

Magnesium (Mg) has 12 protons and an atomic mass of 24. How many neutrons does magnesium have?

A racquet ball with mass m = 0.241 kg is moving toward the wall at v = 13.7 m/s and at an angle of θ = 34° with respect to the horizontal.

What type of plate boundary would be found along the coast line near Japan's volcanic mountain ranges

When the current in a toroidal solenoid is changing at a rate of 0.0270 A/s, the magnitude of the induced emf is 12.5 mV. When the current equals 1.30 A, the average flux through each turn of the solenoid is 0.00245 Wb.

A spring tide can occur at what day and month?

For a given launch velocity, at which launch angle does the projectile undergo the maximum horizontal displacement