the blood clotting process, explain how it works using the terms injures blood vessel, positive feedback loop, platelets, chemical signals, platelet plug and end of feedback cycle

Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves