subject
Physics, 13.01.2020 03:31 savannahwonder

Which statements accurately describe elements?
elements are made up of two or more types of atoms.
elements are made up of only one type of atom.
each element has a unique chemical symbol.
þ elements can be identified by their àtomid number. i
one element cannot be combined with another elemen

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 05:40
An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2
Answers: 1
question
Physics, 22.06.2019 19:30
The ability to make things happen is also called a. heat b. force c. matter d. energy
Answers: 1
question
Physics, 23.06.2019 00:00
You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?
Answers: 3
question
Physics, 23.06.2019 00:20
The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g
Answers: 2
You know the right answer?
Which statements accurately describe elements?
elements are made up of two or more types of a...
Questions
question
Mathematics, 27.07.2019 04:00
question
Mathematics, 27.07.2019 04:00
Questions on the website: 13722367