Displacement verctors of 1km south, 3km north, 6 km south, and 2 km north combine to a total displacement of

If the plane of the moon's orbit were the same as the ecliptic plane, there would be a lunar eclipse A. every day B. twice a month C. once every month D. twice a year

A train has a constant velocity of 2 m/s east. What is the magnitude of the horizontal acceleration of the train?

If rainwater is always acidic then what would it's ph be?

If there is an attractive force between all objects, why do we not feel ourselves gravitating toward massive buildings in our vicinity?

Why do scientists conduct experiments?

An alloy is made of a material of specific gravity 7.87 and another material of specific gravity 4.50. The alloy of mass 750g has an apparent weight of 6.6N when totally immersed in a liquid of specific gravity 0.78.

A ball with a mass of 3 kg moving at 5 m/s collides with a 9 kg ball at rest. After the collision, the impacting (3 kg) ball bounces back at a speed of 2.5 m/s. How fast does the 9 kg ball move and in what direction

Consider the four salts represented on the solubility curves displayed as line graphs. In all four cases the salts are which part of an aqueous solution?

A hot-air balloon of diameter 12 m rises vertically at a constant speed of 11 m/s. A passenger accidentally drops his camera from the railing of the basket when it is 19 m above the ground.

Describe the possible long term impact of a catastrophic event