Which type of force are tension and compression? How to calculate frequency of a pendulum How much tension must a rope withstand if it is used to accelerate a 1,810-kg car horizontally along a frictionless surface at 1.10 m/s2? How does mass and acceleration affect force?
Accelerometers are the stuff of rocket science—quite literally! Mounted in spacecraft, they're a handy way to measure not just changes in rocket speed but also apogee (when a craft is at its maximum distance from Earth or another mass, so its acceleration due to gravity is at a minimum)...
But in 1998, the Hubble Space Telescope observations of distant supernovae showed that the universe was the universe's expansion has increased over time. Though scientists hadn't figured out what exactly was causing the acceleration, this expansion acceleration lead scientists to theorize that dark ...
and they are related. If you measure the speed of an object while you record the time, then measure it again a little later, also while recording the time, you can find acceleration, which is the difference in those speeds divided by the time interval. That's the basic idea, although...
What is the force that causes the centripetal acceleration when a car goes around a curve? The centripetal force is a force that keeps an object under uniform circular motion on its track. Its magnitude is given by the product of an object's mass and acceleration while its direction ...
where m is an object's mass, and g is the acceleration due to gravity. Acceleration due to gravity on Earth, is 9.8 m/s² — it never changes, regardless of an object's mass. That's why if you were to drop a pebble, a book and a couch off a roof, they'd hit the ground ...
In most cases (e.g.: www.WOVOdat.org) volcanic activity will increase progressively, with a clear acceleration at the last moment, until an event occurs. This may be an eruption, a phreatic explosion, or also a sudden decrease of activity due to the relaxation of the system (e.g., ...
Ideally, engineers don't have to rely solely on a structure's inherent ability to dissipate energy. In increasingly more earthquake-resistant buildings, designers are installing damping systems.Active mass damping, for example, relies on a heavy mass mounted to the top of a building and connected...
to up to three times normal gravity (some roller coaster rides can achieve this level of acceleration). Your chest feels compressed and you may have some difficulty breathing. Yet, in about 8 and a half minutes, you are in outer space, experiencing an entirely different sensation:weightlessness...
Why are the northern lights so active right now? We're currently experiencing solar maximum, the peak of the sun's approximately 11-year cycle of magnetic activity. This means the sun is producing more sunspots, solar flares and coronal mass ejections (CMEs) — massive bursts of solar mat...