A train travelling at 50km/h approaches another train moving towards the first at 90km/h. If they are 35km apart (on a straight track) how long does it take before they meet?

How do the elements in the Noble Gas family compare?

The statement "Harvard University is a better school than the University of Chicago" is an example of a hypothesis. gossip. an opinion. a fact.

Which of the following has the largest kinetic energy? A. a 10kg dog running down the street at 30mph B. a tightrope walker slowly crossing niagara falls C. a 0.02kg bullet moving down the barrel at 800mph D. a semi truck parked in a parking lot

Why machines have energy efficiency less than 100%

How does electromagnetic induction happen?

Why did dad leave mom?

Sal drew the electron dot diagram of an aluminum atom as shown. How should Sal correct his diagram? He should add five more dots so that the atom obeys the octet rule. He should add ten more dots so that all thirteen electrons are shown.

What uses electricity

How do the elements in the Noble Gas family compare?

The magnetic field strength within a long solenoid isb=4.0t t, where t is time in seconds. if the radius of thesolenoid is1.0 cm, what is the magnitude of the non-coulomb force that acts on a6.0 c charge a distance6.