If it takes 35.5 seconds for a particle to go around 20 times on a circle with radius of 1.25 m, what are the period t and speed v of the particle? calculate the magnitude and direction of the centripetal acceleration for the particle. if the mass of the particle is 0.25 kg, what is the magnitude and direction of the centripetal force?

What is the temperature in degrees celsius of a substance with a tempature of 49k

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?

Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided