How to calculate speed

What is the relationship between lightning and thunder

To a stationary observer, a man jogs east at 2.5 m/s and a woman jogs west at 1.5 m/s. from the woman's frame of reference, what is the man's velocity?

A women in an elevator lets go of her briefcase but it does not fall to floor. How is the elevator moving

How is Newtons First Law like Inertia?

To a cyclist riding due west with a speed of 4 m/s a wind appears to blow from south west. The wind appears to blow from south to a man running at 2 m/s in the same direction. What is the actual velocity of the wind?

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.