In the picture below, the 21 kg mass is attached by a cord to a mass hanging over the edge of the table. the frictional force between the mass and the table's surface is 121 n. the mass accelerates at a rate of 0.73 m/s^2 to the right. what is the weight of the hanging block?

b) phosphorus pentoxide

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000