What may have been the first step in the formation of the solar system?

a spring is used to launch a ball vertically into the air. the spring has a spring constant of 200N/m and is compressed by 5 cm.

Haw does density of a liquid vary with the temperature

The external cover of aeroplane is made up of aluminium instead of iron. Why?

How long does it take a wheel that is rotating at 33.3 rpm to speed up to 78.0 rpm if it has an angular acceleration of 2.15 rad/s^2?

A particle is in a general circular motion (tangential speed is not constant). Which one of the following statements is always correct. Explain reasoning for each. 1. The velocity of the particle is constant. 2.

What makes the lumbar vertebrae different from the cervical vertebrae and the thoracic vertebrae?

Matter has Certain types of what

Identify the type of relationship that exists between density and temperature

You are standing on the sidewalk and see a bus drive by. What would be an ideal frame of reference? A bird flying overhead A jogger running along the sidewalk A car driving alongside the bus A tree across the street

One isotope of sodium has 11 protons and 7 neutrons. What is the mass number of this isotope?