Based on the wall of conservation of energy how can we reasonably improve a machines ability to do work?

Which describes a controlled experiment testing the effect of temperature on cricket chirps? recording observations at the same time every day using two kinds of heat lamps in tested containers keeping a water dish in some of the tested containers

Why shouldn't we look at the sun directly? 100pts

Give a specific example of a vector quantity. why this type of quantity would be used to describe this event?

How long would it take to drive around earth's equator? (earth's circumference ≈ 40,000 km if driving at 143km?

N order to climb a steep hill on a bicycle, a rider shifts to the lowest gear. The lowest gear has the greatest mechanical advantage because it

What force keeps our atmosphere from floating out into space? heat water gravity outgassing

a subsrance has an atomic number of 80. How many protons and electrons do atoms of the substance have? what is the subsance?

Ideal meters problem. What internal resistance is ideal for a voltmeter? What internal resistance is ideal for an ammeter?

numerical question : what is the required heat to raise the temperature of 2 kg parrafin by 10 Celsius if 44000 joules is required to raise it by 200 celsius

Psychologists avoid studying emotions because they have little impact on behavior T F