75-cd point source of light is 3.0 m away from a painting. What is the illumination on the painting in lux?

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

In a system, when potential energy decreases, then entropy also decreases. true false

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass