It is easier to roll a stone up a sloping road than to lift it vertical upwards because
Options: work done in rolling is more than in lifting, work done in lifting the stone is equal to rolling it, work done in both is same but the rate of doing work is less in rolling, work done in rolling a stone is less than in lifting it
William Frederick is credited with the invention of the modern frisbee in the mid 1950's. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbie who was a ________?
Options: Pie maker, Owner of a pizza parlor, Student at Yale, Ceramic plate designer
Options: acts of gallantry in the presence of enemy, gallantry by children, outstanding contribution to literature, the most conspicuous bravery or self sacrifice on land, air or sea but not in the presence of the enemy