Physics, 28.02.2021 20:40 Seventhhokage465
A student designs an investigation to study the effect of gravity on objects on Earth. He will use the criteria shown. How can the student improve the investigation?
(1 point)
by dropping the balls from the same height
by finding balls made from different materials
by using balls that are the same mass
by measuring the circumference of the balls
Answers: 2
Physics, 21.06.2019 19:10
What happens to light waves from a star as the star moves away from earth?
Answers: 3
Physics, 22.06.2019 15:30
How many neutrons does element x if it’s atomic number is 28 and its mass number is 87
Answers: 1
Physics, 22.06.2019 22:00
1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light
Answers: 3
Physics, 22.06.2019 22:00
Ne way in which elements differ from each other is the structure of the electron cloud in each element's atoms. in an electron cloud, an electron that is farther away from the nucleus has
Answers: 1
A student designs an investigation to study the effect of gravity on objects on Earth. He will use t...
History, 28.04.2021 03:20
Mathematics, 28.04.2021 03:20
Mathematics, 28.04.2021 03:20
Mathematics, 28.04.2021 03:20
English, 28.04.2021 03:20
Mathematics, 28.04.2021 03:20
History, 28.04.2021 03:20