S Distinguish between real and apparent cubic
expansivities of a liquid.
A glass bottle full of mercury has mass 500 g
On being heated through 35°C, 2.43 g of
mercury are expelled. Calculate the mass of
mercury remaining in the bottle (cubic
expansivity of mercury is 1.8 x 10-4 per K
linear expansivity of glass is 8.0 x 10-6
K.
per

Which of the following quantities are units of momentum? (there could be more than one correct choice.) a)n m b) kg s/m c) kg m/'s d)n-s 12 points] e) kg m2/s2

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation