Why does trapped air in a vacuum flask reduce heat loss by conduction?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Describe uniform velocity and variable velocity in short

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.