Or swinging it on a string to derive the gravitational constant. I decided to try this one, using the phone’s barometer to study pressure. Here’s the setup: Set your phone to display the atmospheric pressure. Put it in a sealed plastic bag with some extra air in there. Place a ...
Construct a free-body diagram for the pendulum and derive an expression for the acceleration in terms of the gravitational field strength g, the length L of the pendulum, the radius r of the circular path of the pendulum, and the frequency f of oscillation. (Hint - first derive an expressi...
We follow Jacobson's approach to derive the modified gravity theory (interpreted as an effective theory), and find that in the stationary case the resulting theory only differs from general relativity by a re-scaled cosmological constant. Consequently in asymptotically flat stationary spacetimes the ...
With his understanding of mathematics, Newton was able to derive the aforementioned gravitational constant for all objects in the universe ( G = 6.672×10-11 N m2 kg-2 ). This constant allowed him to unify astronomy and physics which then permitted predictions about how things moved in the un...
In the equation F_{d} = mg = \frac{1}{2}\rho v^{2}C_{D}A , the terminal velocity is proportional to the root mass but in Stoke's law, the terminal velocity is proportional to the mass. Why it is different? ...
in which ρ is the fluid density and u is the flow speed. From this equation, you can rearrange it to derive the lift force equation. This dynamic fluid pressure and surface area in contact with the air or fluid both also heavily depend on the geometry of the airb...
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● derive quantitatively and apply the concepts of gravitational force and gravitational potential energy in radial gravitational fields to a variety of situations, including but not limited to: the concept of escape velocity total potential energy of a planet or satell...
What units are used to measure force? Is the SI unit of volume derived from the unit of length? What are some measurement units that would be useful in describing a basketball court, the length of a river, and the length of a grasshopper? Derive the formula density = mass / volume . ...
The length of the time delay provided a way to probe the expansion rate of the universe, he added. H0LiCOW was able to derive a value of the Hubble constant of 50,331 mph per million light-years (73.3 km/s/Mpc), extremely close to that provided by Cepheid variables but quite far ...