PHYSICS: Why don’t things that are moving just keep moving? And then what happens to your applied force when you pull or push something at an angle?
Super important to remember – it’s not forces, but net forces that produce acceleration. So this means there are a couple of different ways to look at Fnet – a whole made up of parts and something that produces accelerations. Good stuff!
Another good reminder – you can find Ff a couple of different ways – it’ll be part of a net force equation and can be found from the coefficient of friction equation. If and ONLY if your object is moving at a constant velocity, Ff will equal Fa. Fn is only sometimes equal to Fw. If your object is pulled at any angle (or pushed), Fn will be a part of Fnet in the vertical direction.
Whew! 🙂
Photo by Antonia Lombardi on Unsplash
A gamma-ray burst, GRB 221009A, or BOAT, was recorded to be the brightest in 50 years. Researchers believed that the explosion released as much energy as three suns converting all their mass to pure energy. Astronomers worldwide are looking at the burst and are hopeful that it can still be seen in February.
https://www.sciencenews.org/article/boat-brightest-gamma-ray-burst-supernova
New studies done on patients with nightmare disorder may have found a treatment that will help cut down nightmares in these patients from three a week to a new average of just 0.2 a week. Larger studies on this treatment are currently being done, but it is the first time progress has been made for people with this disease in decades.
https://www.sciencenews.org/article/treatment-nightmares-sleep