A ball took 0.45s to hit the ground 0.72m from the table. What was the horizontal velocity of the ball as it rolled off the table?

What measures air pressure.?

A dart is loaded into a spring-loaded toy dart gun by pushing the spring in by a distance d. for the next loading, the spring is compressed a distance 2d. how much work is required to load the second dart compared to that required to load the first?

Pseudoscience in sentence

Why does the weight of an object change and mass of an object does not change when the object is moved to a different planet

How many neutrons does element X have if its atomic number is 24 and its mass number is 99?

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.