True or false? a physical change is a change of matter from one form to another without a change in chemical properties

The average mass of an automobile is about 1.440 x 10^6g. Express the mass in kilograms

Bowl of water A bowl full of water is sitting out in a pouring rainstorm. Its surface area is 500 cm2. The rain is coming straight down at 5 m/s at a rate of 10-3g/cm2 s.

To transport a bullet to the crime scene, it should be wrapped in what?

Which era of the phanerozoic eon lasted the longest?

Do you have a lawn mower engine running for 20 minutes does 4,560, 000 J of work. What is the power output of the engine?

Name two practical applications of nanotechnology

if the distance of separation begin two objects is doubled, is the gravitational force between the objects increased or decreased? by what factor?

A researcher measures the thickness of a layer of benzene (n = 1.50) floating on water by shining monochromatic light onto the film and varying the wavelength of the light.

A rock has a height of 4 cm, a length of 5 cm, and a width of 2 cm. what is the volume of the rock?

The filament of a certain lamp has a resistance that increases linearly with temperature. When a constant voltage is switched on, the initial current decreases until the filament reaches its steady-state temperature.