Explain why the invention of the microscope led to the discovery of cells.

A classroom is air-conditioned using window air-conditioning units. The cooling load is due to people, lights, and heat transfer through the walls and the windows. There are 40 students and 10 bulbs in the class room.

Unlike fireflies and glow worms, most objects don't make their own light. So how can you see what's around you?

Implement the following boolean function with an 8 to 1 line multiplexer and a single inverter F (A, B, C, D) = (2,3,5,6,8,9,12,14)

An instrument for observing very small objects is a. micrometer spectroscope microscope magnoscope

How much force would be needed to accelerate a 66 kg skier at 2 m/sec

What elements are formed only during the supernova phase of large or extra-large madd star?

When a solid A of mass 12g is completed immensedin a measuring cylinder filled with water it diplaces the same volume of water as does solidB if mass 8 what can be deduced about the densities of solid AandB

Write the energy equivalent to 300 units of electrical energy in joules

Briefly describe why these searches suggest that star-like (our planet-like) objects and black holes cannot account for all the dark matter in the halo of our galaxy.

What two units of measurement are necessary for describing speed?