What is the weight of a 45 kg box?

How does an ice cube melt when you hold it in your hand?

What is one property that all particles of matter have in common?

When the car's motion changed from 40 km/h north to 40 km/h east, what changed?

A 30-kg aluminum block initially at 1408c is brought into contact with a 40-kg block of iron at 608c in an insulated enclosure. determine the final equilibrium temperature and the total entropy change for this process.

a bird has a mass of 0.2kg and is flying 10m above the ground with a speed of 7 m/s. What is the total mechanical energy of the bird?

A stone is thrown with an initial velocity of 20 meters per second straight upward from the edge of a cliff 100 meters above a canyon floor. The stone just misses the cliff'a edge on its way down.

A crowd in a stadium is heard by a man standing 823.2 m away. The man hears the noise 2.5 seconds after the noise occurs. How fast was the sound traveling? What's the answer?

Which is not support the theory of plate tectonics?

the acceleration of a body in free fall depends on the place or the world in which it is, true or false?

A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. the square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field.