How to find the value of the universal gravitational constant? What is Newton's constant? How much force is a newton? One Newton equals about 100 g on Earth. How many Newtons would a football weigh if it has a mass of 400 g?
Einstein's special theory of relativity explains how energy and mass are related and how objects seem to behave as they approach the speed of light. Learn to define Einstein's theory of relativity, and use examples to explain the speed of light and Einstein's mass-energy equival...
like turning your phone into a sonar to measure the speed of sound. or putting it in a salad spinner to study circular motion. 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...
Quantum Information and Gravity Cutoff in Theories with Species We show that lowering of the gravitational cutoff relative to the Planck mass, imposed by black hole physics in theories with N species, has an independent... G Dvali,C Gomez - 《Physics Letters B》 被引量: 78发表: 2009年 ...
Urbanization and climate change are contributing to severe flooding globally, damaging infrastructure, disrupting economies, and undermining human well-being. Approaches to make cities more resilient to floods are emerging, notably with the design of flood-resilient structures, but relatively little is kno...
3.2 Dual formulation with three-form potentials Using the Weyl-invariant formulation, one may easily generalize the discussion of section 2.4 and outline, in bosonic terms, how to derive an EFT in which the constants NA are sub- stituted by dynamical (although non-propagating) three-form ...
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...
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 ...
We focus primarily on cerebellar cortex responses, as nodulus/uvula Purkinje cells reliably encode translation rather than net gravito-inertial acceleration. In contrast, neurons in the vestibular and rostral fastigial nuclei, as well as the ventral lateral and ventral posterior nuclei of the thalamus...
Derive the formula density = mass / volume . Explain the physical interpretation. Does momentum use grams or kilograms in its units? If a line segment measures 60 centimeters, what is its measurement in inches? If the initial velocity of a car is 14.62 meters per second and its final veloci...