A 45.0-kg sample of ice is at 0.00°C. How much heat is needed to melt it? For water, Lf=334 kJ/kg and Lv=2257 kJ/kg

A. 4.10 x 10^6 kj

B. 0.00 kj

C. 1.02 x 10^5 kj

D. 1.50 x 10 ^4 kj

What is the current when a 71-W lamp is connected to 120 V?

Tell me awesome facts about light.

Two electronics technicians are discussing conductors and insulators. Technician A says that conductors have more free electrons than insulators. Technician B says that insulators have lower resistance than conductors.

How is the mass of a liquid substance affected after it boils? A. It increases. B. It decreases. C. It stays the same.

Ou are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. the soccer ball is kicked at 47° from the edge of the building with an initial velocity of 21 m/s and lands 57 meters away from the wall.

The parts of a longitudinal wave that are closet together?

If a basketball travels a distance of 4 meters in 5 seconds, what is its average speed? A. 4 meters / second B. 0.8 meters/second C. 1.2 meters/second D. 5 meters/second

Discuss the correlation or connection between stars with a higher mass and the amount of fuel they have to work with

Which has the same relationship as circle:cylinder? Triangle:sphere, square:window, rectangle:box, pentagon:counter

Which training principle does this scenario represent?