chapter11
... Escape Velocity Velocity needed to escape Earth’s gravity from the surface: vesc ≈ 11.6 km/s. Now, gravitational force decreases with distance (~ 1/d2) => Starting out high above the surface => lower escape velocity. ...
... Escape Velocity Velocity needed to escape Earth’s gravity from the surface: vesc ≈ 11.6 km/s. Now, gravitational force decreases with distance (~ 1/d2) => Starting out high above the surface => lower escape velocity. ...
Document
... – A coord system fixed on the Earth is accelerating (Earth’s rotation + orbital motion) & is thus non-inertial! – For many problems, this is not important. For some, we cannot ignore it! ...
... – A coord system fixed on the Earth is accelerating (Earth’s rotation + orbital motion) & is thus non-inertial! – For many problems, this is not important. For some, we cannot ignore it! ...
Problem Set 1 Solutions
... The mass is constrained to move up and down the slope. It has one degree of freedom and therefore only one coordinate is needed to completely describe the motion. The coordinate x(t) has been selected as shown in the figure. It is measured from the unstretched spring position, so that at x=0.0 the f ...
... The mass is constrained to move up and down the slope. It has one degree of freedom and therefore only one coordinate is needed to completely describe the motion. The coordinate x(t) has been selected as shown in the figure. It is measured from the unstretched spring position, so that at x=0.0 the f ...
The Velocity of Light - Gravitational Relativity
... an incredible achievement and has been time tested for the last 150 years. However, since (1) light travels through empty space from distant celestial bodies and (2) electromagnetic fields only come from matter, it was assumed in the late 1800s that there must be some fixed ethereal matter (aether/e ...
... an incredible achievement and has been time tested for the last 150 years. However, since (1) light travels through empty space from distant celestial bodies and (2) electromagnetic fields only come from matter, it was assumed in the late 1800s that there must be some fixed ethereal matter (aether/e ...
Time dilation
In the theory of relativity, time dilation is a difference of elapsed time between two events as measured by observers either moving relative to each other or differently situated from a gravitational mass or masses.An accurate clock at rest with respect to one observer may be measured to tick at a different rate when compared to a second observer's own equally accurate clocks. This effect arises neither from technical aspects of the clocks nor from the fact that signals need time to propagate, but from the nature of spacetime itself.