An electrical heater in the form of a horizontal disk of 0.5 m diameter is used to heatthe bottom of a tank filled with water at a temperature of 5°c. calculate the powerrequired to maintain the heater surface temperature at 80°c. (25pts)

would be false hope this out

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19