How far away is a train if you see the steam from it's nozzle 5sec before you hear it's sound (take the speed of sound is 331m/s)

Calculate the acceleration of a bus whose speed changes from 7 m/s to 16 m/s over a period of 5 s.

What is booklet? how to prepare booklet

Why is the use of an international system of measurement important for science?

Unpolarized light with intensity I0I0I_0 is incident on an ideal polarizing filter. The emerging light strikes a second ideal polarizing filter whose axis is at 45.0 ∘∘ to that of the first.

According to newtons second law of motion a larger force acting on an object causes a greater what of that object

The scientific method begins with recognizing a problem. The recognized problem in this scenario is, "Why is the printer in the office not working?" Choose the hypotheses that are testable and from which an experiment can be formed.

The correctly balanced equation for H2O2 → H2O + O2 is

How would an unbalanced chemical equation convey misleading information about what took place during a chemical reaction?

A car rounds a 75-m radius curve at a constant speed of 18 m/s. a ball is suspended by a string from the ceiling the car and moves with the car. the angle between the string and the vertical is:

Emission of light from an atom occurs when an electron