Physics, 29.02.2020 01:08 sarah121868
Gravity causes objects to be attracted to one another. This attraction keeps our feet firmly planted on the ground and causes the moon to orbit the earth. The force of gravitational attraction is represented by the equationF=Gm1m2/r2where F is the magnitude of the gravitational attraction on either body, m1 and m2 are the masses of the bodies, r is the distance between them, and G is the gravitational constant. In SI units, the units or force are kg m/s2, the units of mass are kg, and the units of distance are m. For this equation to have consistent units, the units of Gmust be which of the following?One consequence of Einstein's theory of special relativity is that mass is a form of energy. This mass-energy relationship is perhaps the most famous of all physics equations:,where m is mass, c is the speed of the light, and E is the energy. In SI units, the units of speed are m/s. For the preceding equation to have consistent units (the same units on both sides of the equation), the units of E must be which of the following?ANSWER:
Answers: 2
![[m^3\cdot kg^{-1}\cdot s^{-2}]](/tpl/images/0528/8253/3532d.png)
![[kg\cdot m^2 \cdot s^{-2}]](/tpl/images/0528/8253/c76c6.png)
![[kg \cdot m\cdot s^{-2}]](/tpl/images/0528/8253/f5bb8.png)
![[G]=\frac{[kg\cdot m \cdot s^{-2}][m]^2}{[kg][kg]}=\frac{[m^3]}{[kg][s^2]}=[m^3\cdot kg^{-1}\cdot s^{-2}]](/tpl/images/0528/8253/32506.png)
![[m\cdot s^{-1}]](/tpl/images/0528/8253/7c925.png)
![[E]=[kg]\cdot [m\cdot s^{-1}]^2 =[kg]\cdot [m]^2 \cdot [s^{-2}]=[kg\cdot m^2 \cdot s^{-2}]](/tpl/images/0528/8253/604b0.png)
Another question on Physics
Physics, 22.06.2019 01:30
Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?
Answers: 1
Physics, 22.06.2019 10:30
The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.
Answers: 1
Physics, 23.06.2019 00:30
If you let go of the notebook after lifting it, will it move? how?
Answers: 1
You know the right answer?
Gravity causes objects to be attracted to one another. This attraction keeps our feet firmly planted...
Questions
English, 22.08.2020 23:01
Computers and Technology, 22.08.2020 23:01
Chemistry, 22.08.2020 23:01
Engineering, 22.08.2020 23:01
