What is heavier a pound of lead or a pound of photons?

Option 1 - describe the difference between sensation and perception, using fireworks as an example. include the sensory stimuli involved, as well as bottom-up and top-down processing.

A ceiling fan draws a current of 0.625 A and has a voltage of 120 V. The resistance of the ceiling fan, to the nearest whole number, is ___ Ω.

Hi partial sum addition I have a problem 245 + 92 is 200 + 90 or do I do 200 + 100

Real-world examples of power

How do you find mph with time and distance?

Absolute differences between each observed mass and the accepted value, divided by the accepted value, multiplied by 100%

What forms of energy are produced by a violin

Archimedes' principle can be used to calculate the density of a fluid as well as that of a solid. suppose a chunk of iron with a mass of 390.0 g in air is found to have an apparent mass of 350.5 g when completely submerged in an unknown liquid.

6. What does the slope of a velocity-time graph indicate?

How high was a brick dropped from if if falls in 2.5 seconds?