A Cannon shell is fired straight up from the ground at an initial speed of 225 m/s. after how much time is the shell at a height of 620 m above the ground and moving down.

If a resistor is added to a series circuit, the equivalent resistance: a. increases c. remains the same b. decreases d. becomes zero

Why does hot air rise?

The law of conservation of energy states

What does decreasing amplitude do to the shape of the wave?

Finish this sentence to describe whar happens ro potential energy: as the height of an object increases

Waves diffract the most when their wavelength is

A light plane is headed due south with a speed of 200 km/h relative to still air. After 1.00 hour, the pilot notices that they have covered only 129 km and their direction is not south but 15.0∘ east of south.

How much work is done if a box weighing 28 newtons is carrird up a ladder for a distance of 2m

What are two ways that some solutes form ions in solution?

How far will Otilio travel in 6 sec if his speed is 2 m/sec?