An object moved 45 meters in 9 seconds, what is the speed?

A lorry with a mass of 5000kg accelerates to overtake a caravan on the motorway. Its acceleration is 1.5m/s². What force must the engine be providing? You can ignore the effects of friction and air resistance

Why are the Inner Planets composed mostly of rock and the Outer Planets composed mostly of gas

What happens to an object after being transported to three planets in the solar system?

What is the hardest rock to break with a hammer

Watches a 2000 klilogram car crash into a wall with a force of 30000 newtons. what is the acceleration of the car at impact?

What is the role of the air spaces in insulating materials? Select all that apply. They trap heat in the spaces. They puts gaps between the particles to slow down conduction. They dissipate energy faster.

Is it true or false that wave interference only occurs with transverse waves?

There have been several proposed atomic models during the last 150 years. Which model best illustrates the Bohr model. This model suggests that an atom's electrons orbit the nucleus in fixed patterns, much like the planets orbit the Sun.

During which type of change should you expect to see different chemical symbols before and after the change?

Ryan is examining the energy of the particles in a bar of gold. What is Ryan most likely studying? thermal energy electric energy potential energy internal energy