Physics, 17.12.2020 17:40 hollandhogenson
Suppose the Hubble constant were not 22 but 33 km/s per million light-years. Then what would the critical density be?
Answers: 2
Physics, 21.06.2019 23:00
If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10
Answers: 1
Physics, 22.06.2019 05:10
What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics
Answers: 2
Physics, 22.06.2019 14:30
In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.
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
Suppose the Hubble constant were not 22 but 33 km/s per million light-years. Then what would the cri...
Physics, 18.03.2020 01:07
Mathematics, 18.03.2020 01:07
Biology, 18.03.2020 01:07
Biology, 18.03.2020 01:07
English, 18.03.2020 01:07
English, 18.03.2020 01:07
History, 18.03.2020 01:08
Biology, 18.03.2020 01:08
Mathematics, 18.03.2020 01:08
Mathematics, 18.03.2020 01:08
Mathematics, 18.03.2020 01:08
Mathematics, 18.03.2020 01:08
Mathematics, 18.03.2020 01:08