Why do we see lightning before we hear the accompanying Thunder

Investigators are working on a case where they need to know whether a watch will stop when it is dropped.

What happens if an atom loses a neutron? Its mass is lowered, but it is still the same element Its mass is lowered, and it becomes a different element.

The formation of interference patterns by electrons is best explained using which concept? A. Classical physics B. Newtonian physics C. Matter as a particle D. Matter as a wave

While walking to work in Boston shortly after sunrise you notice that the water level in the bay is exceptionally low. Based on this very low low-tide and the dark cloudless sky last night, what is the current phase of the moon

A space walking astronaut has become detached from her spaceship. shes floating in space while holding a wrench she is thinking about how to get back to the spaceship.

What is the frequency of a wave with a velocity of 21.2 m/s and a wavelength of 8.3m?

Positive ions have blank protons than electrons

What is the weight, in n, of an object with a mass of 200 kg at a location where g = 9.6 m/s2. round the final answer to the nearest whole number?

A 1.7 kg book is lying on a 0.77 m - high table. You pick it up and place it on a bookshelf 2.0 m above the floor. how much work does gravity do on the book?

What is the difference between diffusion and osmosis?