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?

The chemical effect of the endocrine system is longer lasting than the chemical effect of the nervous system. select the best answer from the choices provided t f

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

If the new moon happens on january 15th, what shape will it be on february 6th?