A0.145 kg mass of tungsten at 130.0c is placed in a 0. 502 kg of water at 22.0c the the mixture reaches equilibrium at 28.6c calculate the specific heat of tungsten (specific heat of water = 4180 j/kg c). formula maca∆tb = mbc∆tb

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s